The commercial laboratory of the "Domaine Agricole El
and cover lightly with the medium. nitrate. most) during the early life of the palm (10 to 15 years from the date of its
The date grower is advised to co-ordinate the purchasing
De Mason
percent of the palms produce fruit of satisfactory quality; * Date palms are heterozygous, and thus there will be much
and September/October are then the most suitable period for field planting,
The seed of this species has a longer viability than that of most palms. plantlets and improve their survival during establishment under greenhouse
1966; Nixon and Carpenter, 1978). cultured on eight different nutrient media with different levels of growth
and the fruit stalk blackened within 24 hours after culturing on nutrient media,
A good potting mix is 50 percent peat and 50 percent perlite. Small offshoots weighing 5 kg and less, if needed, could also
meristematic buds (also called the starting step), multiplication (Figure 42),
free and at least three to five years old with a base diameter between 20 and 35
produce relatively low numbers of offshoots. In places such as Fezzan (Libya), some areas of Iraq and Saudi
for cultured date palm roots. reduced epicuticular wax deposits (Figure 50), altered leaf anatomy (Figure 51),
plantlets for transfer to soil had been neglected (Murashige, 1974). cultured on a variety of media and usually developed somewhat normally, but
Barhee palm derived from asexual embryogenesis
Most buds of date palm were reported to die within the first
variety, Figure 46. After 3 to 5 years of attachment to the parent palm, depending
Date palm seedling plantation to select salt
Fungi are usually a serious problem in a mist bed, and the offshoots must
For these high offshoots, boxes or plastic
Furthermore, various problems met at other levels have their origin at the
One of the major obstacles concerning the practical
Addition of 3 % charcoal has caused
Multiple shoot formation of date palm
- Immediately after transplanting, an average
recommended that the following be ensured: - Do not transplant any plant until it gains the
to be hardened-off. They reported that by adding 200 mg/1 "fermentol" to MS
offshoots could be left, considering the tree's equilibrium, and the other
The same authors also determined the action of several auxins and
This small species of palm tree doesn’t grow taller than 25 ft. (7.6 m), however, some smaller varieties only grow to 15 ft. (4.5 m). However, once blooming commences, the problem becomes more clear. The plant water basin, of 1.5 to 1.8 m in
greenhouse- grown, tissue culture- derived (Polyethylene glycol-treated and non
propagation, offers the following advantages: (i) Offshoot plants are true to type to the parent
and causes a water stress situation. medium containing lower levels of auxins such a 0.1 mg/1 NAA or 2,4-D allows
(1980), using date palm shoot-tips, reported limited success in their
mother. Constantin et al. of adsorbents including citrate, adenine and glutamine, retarded browning in
Station, Israel, 1996); It looks
size of the bulliform cells. Propagation by seed also takes several years to produce a small plant. and slow growth of date plantlets have commonly been reported. a week in winter time and at least twice a week during summer. field directly after removal from the mother plant. intensity during the last 4 to 6 weeks; and- Create an artifi cial osmotic
sites (Table No. several days before cutting. of shade net/hessian wrapping or a tent of date leaves is recommended (Figure
Another way to differentiate between the two is that
seedlings have roots all around their base with no connecting point to the palm,
survival rate (that sometimes reaches below 50 %) is caused by several factors
plant group in terms of understanding development and propagation potential
date grower, plants are transferred to larger bags (7 to 10 litres capacity)
1995b). After completion of the removal of the offshoot, the old leaf
the date palm embryo cotyledonary sheath tissue in media containing naphthalene
surface. The transplanting operation should be done as quickly as
It has been
diploid than those derived from less meristematic regions (Murashige, 1975). of charcoal, containing 10 mg L-¹ NAA or kinetin to obtain
brown and died after a few weeks in culture (Tisserat et al., 1974). The life span of the date palm is divided into two distinct
variety (Figures 46, 47 and 48). or grow out embryos from interspecifi c hybridisation where defective endosperms
totipotency for some varieties. up to 10 % was not toxic, although growth was slower than untreated shoot-tips. the plant so water can not get into its heart. and Erikson (1975), postulated that the addition of charcoal to a culture medium
The following chisel dimensions could be
well as treatment of an offshoot after planting (Nixon and Carpenter,
could expect a survival rate between 90 and 95 % (Figure 54). Even when gradual hardening off has been used, poor survival
Root
rate.- Decrease of regeneration capacity (precocious rooting).- Loss of
Bottom heating of the micro tunnel (±
sections). two distinct types of tissues; a loose friable tissue and compact aggregates. gradually increasing light. impractical. Ripe seeds will come from drupes that are deeply bluish black and shaped a bit like a kidney bean. although it passes through the cold months of winter (June, July and August)
useful for breeding purposes, is not a proper method of date palm vegetative
Note the
should be installed inside the unit for easy irrigation and the unit must be
the first summer. oil palm embryos. not very practical from a mass propagation point of view, and consequently does
Chamaedores costaricana Oerst, Howeia forsteriana
follows: - Physiological stage of the offshoot,
the three most important factors to be taken into account by the manager of a
bags. the laboratory's glasshouse, Figure 50. The small palms grow to between 6” and 12” (15 – 30 cm) high. gas and auxins, and by a reduction in either the level of minerals or sucrose. You can transplant your established palm pup into the ground in either the spring or the fall. (September/October) avoids the cold temperatures and later receives warm
Basin around a young date palm (1.5 to 1.8 m
and their hardening-off at the farmer's nursery. Palm tree, golden sand and blue sea - any person's dream. gradually opened in order to decrease humidity and prepare the plants to adapt
Date palm ovules, carpel tissue, parthenogenetic endosperm,
Thus, seed propagation is by far the easiest and quickest
trees, offshoots, seedlings and asexual plantlets, found that only subcultured
subject to somaclonal variation in particular, and to genetic variations in
chosen as explant material in metabolic studies (Raghavan, 1976). are suitable for planting out in one year and must still go into the nursery for
(Morel, 1965; Williams, 1974). These environmental conditions will ensure a high relative
buds. Fertilisation is to be applied once per month: apply 5 g of
temperature of 25°C, 60 % bud differentiation occurred. of topsoil and 10 to 15 kg of manure of high quality (with very little unmatured
irrigated shortly before planting, but extreme care must be taken to put the
should be removed from an offshoot until it is cut from the mother palm, since
Although in vitro mass plant propagation has become
When conditions are known to be
old date palm offshoots. Organogenesis technique consists of 4 steps: Initiation of
20 cm thick between the manure and the base of the offshoot. at all times by light and frequent irrigation. are economically important in tropical and subtropical regions. An ultra violet resistant shade net of 80% is
offshoots cease. medium. Once you have your seeds and your pre-moistened medium, it is time to plant. methods applied to the date palm and explores the wide range of results obtained
Eeuwens (1978)
In reviewing date palm tissue culture, the classification
Figure 41. Another
There are 9 functional
Vitrification phenomenon of date palm tissues is a handicap
and is, occasionally, responsible for the inhibition of bud initiation. Starting from the bottom of young leaves, soft tissues, shoot
differentiation. The
originated palms; - Ensure an easy and fast exchange of plant material between
A mulch of hay or straw around the
consistent shoot regeneration occurred on nutrient media containing 10 mg
No signifi cant sale outside
solution (or 50 % Hoagland) every 3rd or 4th day depending on the hygrometry
been limited to relatively few herbaceous species. years); - During this short phase, only a limited number of offshoots
years). control and the beginning of autonomous plant growth. excised embryo callus production. (Source: Date Production Support Programme in Namibia;
and older ones, and the upper and younger ones. Addition of other adsorbents to nutrient media, such as
after the first culture passage. enriched with 2,4-dichlorophenoxy acetic acid (2,4-D), and a creamy-coloured
Only the largest and most distinctly differentiated buds grew. lengthy dormancy periods due to physical and/or chemical inhibitors present in
fog system. developed tissue culture techniques. differentiated into an offshoot until the time it grows outwards, takes up to
a medium containing a lower level of auxins. 299 Meknes, MoroccoTel: (+212) 5 50 0493Fax:
Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Oil palm can reach heights of 20–30 m (65.6–98.4 ft) and has an economic lifespan of 25–30 years, at which point they become too tall to be managed efficiently and are cut down. B - High offshoots on the palm using plastic bags fi
8- week old stage corresponded to that found in the zygotic seedling. the plant must have a well developed root system. The architecture of the oil palm, lacking axillary shoots, does not allow for vegetative propagation. Early offshoot removal is desirable because: (1) removal allows easy access to the
cultivation, they may be tied together. 4.6 Organogenesis and asexual
occurred when media contained 0.1 mg/1 NAA and 0.01 mg/1 kinetin. understanding their development and vegetative propagation potential. to form a sharp cutting edge. White friable callus
To minimise browning, Murashige (1974) has suggested the
Bark is to be avoided because it dries out rapidly
procedure. The coconut palm is one of the most beautiful palms on earth the tree of life. The success of such a technique is
time many scientists have become interested in the effects that the transfer
were cultured on modified MS medium containing 3 mg L-¹
Growing Windmill Palms - Windmill Palm Planting And Care, What Is Windmill Grass: Learn About Windmill Grass Information And Control, What Are Cycads: Learn About Growing Cycad Plants, Cacti For Beginners: Easy Cactus Varieties, Cat Claw Cactus Care – Learn About Growing Cat Claw Cacti, What Is An Orange Snowball Cactus – Tips For Growing Orange Snowballs, What Is Cactus Sunscald: Tips On Treating Cactus Sunscald In Gardens, Zone 7 Yuccas: Choosing Yucca Plants For Zone 7 Gardens, Choosing Zone 3 Roses – Can Roses Grow In Zone 3 Climates, When Can I Transplant Azaleas: Tips On Relocating An Azalea Bush, Mild Winter Weather: Winter Gardening In Zone 10, The Struggle To Make My Indoor Cactus Grow. both the offshoot and the mother palm be covered with a copper sulphate product
The main focus is related to enhancement of genetic variability, clonal propagation, and partially to obtention of virus free plants and germplasm conservation. most cases, fi nger printing is the technique actually used, but according to
Box 20519Windhoek, NamibiaTel: (+26461)
RESEARCHUNIT, P.O. Similar results were
plants (Zaid, 1995; Zaid and Hughes, 1995c). The adequate pH to
0.25 mm in length, sometimes with, though preferably without, a few leaf
Reasons in favour of discouraging seed
The
should have a double layer of the shade net for insulation purposes. adsorbents because the latter are often toxic to the plant tissues at higher
Once the loose fibre and old leaf
have a straight form. The results obtained are satisfactory and after 8 to 12 months
stage (1 week old); emergence of first foliar leaf (3 week old); and established
frequently obtained when using offshoots; - The use of offshoots will enhance the spread of date palm
Short of lifting the plant’s skirts, it can be difficult to identify the plant’s gender without a professional. Oil palm (Elaeis guineensis) is a tropical tree crop which is mainly grown for its industrial production of vegetative oil. After planting protection against harsh
while an offshoot does not have any roots on the side where it was connected to
1979). Presumably, plantlets derived from naturally meristematic regions are likely to
You are basically making a little greenhouse to contain moisture and encourage heat. diseases and pests; - Offshoot propagation is difficult, laborious, and therefore
A specially designed chisel is recommended to cut offshoots. culturing date palm shoot-tips,found that a high auxin concentration of 10 and
Root initiation was infrequent and did not appear to be
was unsuccessful (Reuveni and Kipnis, 1974). Ten or twelve leaves around the bud are retained and tied close
Repeated culture resulted in the formation of plantlets. The
angiosperm shoot apices, few woody angiosperm shoot-tips have been established
apparent: 1. Oil palm root and root
1989a; 1989b). Tisserat (1983a; 1983b), obtained some callus from seedlings and asexual
two years in a nursery is essential in order to ensure an optimum survival rate
Because of its diversity, the seed approach
4.5 Cryopreservation of date palm shoot
2 days and then cooled to liquid nitrogen (LN) temperatures using procedures
Mature zygotic embryos cultured in nutrient media containing charcoal with high
develop into offshoots; and generative, in which buds form inflorescences and
Phoenix stem explants reportedly enlarged considerably
with oil palms, and Eeuwens (1978) with coconut and date palms, obtained a white
You will need to clean off the pulp to get at the seeds. (Rabéchault and Gas, 1974). date seeds, for future selection on fruit quality, is the most economical way of
to the main trunk. have their leaves cut back close to the bud to retard their growth. From the time that the axillary bud of a leaf has
commercial laboratories(*), Baltonsborough, SomersetBA6. Morphogenetic responses were found dependent on the origin and
Date palm inflorescence culture was also largely investigated
(disease and pest-free), Bayoud resistant cultivars, or males having superior
initiation was not prevented by the presence of high cytokinin or low sucrose
Apply 120 ml of solution per plant bag. Keep the soil moderately moist and the cutting in bright but indirect sunlight. Phoenix leaf petiol explant has initiated roots within 6 weeks when
Plantlets are now ready to be transplanted to larger plastic
However, seeds are not normally produced by palm houseplants and therefore must be obtained from an outside source. Place the container in a dark area of the home that is at least 65 degrees Fahrenheit or 18 degrees Celsius. For date, injury through cutting of tissue is
One side of the blade is fl at and the other bevelled so as
(Histo-cytology:Figure 44), iso-enzyme, RFLP (Figure 45), RAPD techniques). 1.5cm in length and reculturing the plant to an agar nutrient medium containing
fast growing situation of date palm tissue culture-derived plantlets: Date palm plantlets are ready for transplanting only when they
According to the knowledge of
Large leaf size as an abnormality (Right:
(+212) 5 50 0730, P.O. investigate root cultures in palms in vitro. Most gardeners advocate the soaking method. Check the transplanted palm pup frequently to make sure the soil stays moist. (Table 34). first 6 months (Figure 53). The fl at side of the chisel is put towards the weak point of
%). Adventitious rooting is obtained by trimming the primary roots to 1 -
Although economically important, palms are a much neglected
is located, the first cut is made to the side of the base of the offshoot close
generally found surrounding the aggregate clumps which consisted of densely
In
tissues. The application of tissue culture techniques for date palm,
Irrigation is an important factor and must be implemented once
"Tademant" variety, Figure 44. in order to avoid infection by Diplodia and other parasites. commonly used for date palm nursery (hardening-off at the date grower's
is reserving all its production for national use. contact with moist soil for at least twelve months before removal. Organogenesis technique, based on meristematic tissues
The oil palm (Elaeis guineensis Jacq.) potential, fruit quality and harvesting time, making them very difficult to
230480Fax: (+26461) 250889, UNITED ARAB EMIRATES UNIVERSITY - DATE PALM DEVELOPMENT
the fruit or seed (Hoded, 1977). These nodules were precursors to asexual embryos. Only at this stage are they ready to be removed (Nixon,
of young date palm leaves. browning explant parts during culture was also advocated to prevent this problem
from 2 month-old seedlings derived from the cultivar "Medjool", precultured for
of the offshoot. level). general. Poulain et al. rooting and division of shoot tips and lateral
techniques. occasionally formed at the cut surface of the tip, particularly in dim light,
morphological development of asexual embryos from callus closely paralleled
The nursery
The appearance of these tropical inhabitants with beautiful leaves split in the form of feathers or fans is diverse. So my advice to you is if you don’t have a coconut palm in your front lawn. The colors can be tan and at times with a yellow/green color to the middle of the tentacles. confi rm if the palms derived from tissue culture are true to type to the plant
(1972) found that growing tip cultures of date
7832472, Others in Middle East (Oman) and in India. (1977)
Embryo cultures from 18 of these species produced prolific
should be well located (close to several trees to benefi t from their shade) but
The use
Sago palms also grow indoors to add a tropical touch to your interiors. varieties were hardened during 1996 and 1997 in both Naute and Eersbegin project
Two types of offshoots occur on a date palm tree: the lower
not satisfy the large needs of plant material. are common (Johnston and Stern, 1957). pear-shaped crown); - A well developed root system with an average of 5 cm in
During the first six
adenine (2-iP). Propagating an Areca Palm. Apavatjrut and Blake (1977) suggested that
If all above recommendations and advicse are respected, the date grower
Early rooting of date palm tissues reduce bud multiplication
When a date palm is crowded with offshoots, only 5 to 6 larger
Zaid, 1987). or Zahidi. and the hardening-off period, to ensure that planting can betimely implemented
can only be propagated by seeds, i.e., Coconut and Oil palm. This tissue was not involved in embryo formation and was
propagated; - No seasonal effect on plants because they can be multiplied
Comparison of asexual embryo (right)
Offshoot propagation, also called asexual or vegetative
initiation phase. Furthermore, progress in the field of breeding, genetics, crop
18, Propagation NurseriesKibbutz Rosh HanikraWestern
During the course of in vitro growth and development,
of somatic embryos. Zaid (1987) also cultured
selecting clones that have some desirable characters such as rain and/or salt
Use a sterile, sharp knife to divide the growth away from the parent. excised zygotic embryo germination in vitro (Figure 40). Medjool's offshoot is far more difficult to establish than Deglet Nour
successfully tissue cultured, have also been the herbaceous types. Such a low
and growth of apical dome of the shoot usually less than 0.1 mm in diameter and
technique is to leave them on the mother palm until they mature. in size during the first few weeks of culture (Tisserat, 1979). The species and varieties that are propagated are limited by the type of tree farm that purchases the seedlings or rooted cuttings, the climate/environment where the trees will be grown, the climate/environment of the tree nursery, and what species and varieties that the end-consumer desires. existence, or from the F1 hybrids of previous selections, and seed-only
In most cases, the LN-treated shoot tips developed directly
Figure 38. this handicap: - Offshoot production is limited to a certain
Staristsky (1970) and Schroder (1970) were the first to
after LN exposure. 1970). humidity (90 - 95 %) and a constant temperature ± 25 - 26°C day time
substantial root and shoot growth of date embryos. Asexual (also called somatic) embryogenesis, is based on the
suggested that the growth regulators required for callus growth and shoot
Zaid and Tisserat (1983a) cultured date palm shoot tip
Zymogram of date palm "Black Bousthami"
Most palms
palms respectively, cultured shoot-tips in vitro with some success. dihydroxynaphtalene, dimethylsulfoxide, were ineffective against browning in
Figure 40. Of course, propagating windmill palms requires the plant to flower and produce healthy seed. Delivered
Shoot-tips were excised
be clonal and generate faster than other explant sources. old. It is appropriate at this level to differentiate between the
from offshoots of AGUELLID variety were used (Bougerfaoui and Zaid, 1993). employed by Staritsky (1970) or using Eeuwens Y/3 mineral formulation (Eeuwens,
the cutting operation must be only from one side to obtain a smooth cut
medium. stem explants (Morel, 1960). (during February/March for Southern hemisphere and September/October for
spread of diseases and pests; and. Reuveni (1979) reported that callus and roots developed from
well in culture (Reuveni and Kipnis, 1974). physiological stage of the explant. Support Programme. It is a typical estate crop, grown and harvested over large uniform areas (3,000 to 5,000 ha) around a central oil mill to allow rapid industrial handling after harvesting. the in vitro laboratory stage. 1976). Up to now, this technique had shown to be genotype
browning could be eliminated by a nutritionally balanced medium. consequently tissue vitrification (46 to 53 % of cultures); while this
Plantlets received from a laboratory are usually about 35 to
- After 8 to 12 months in the nursery,
However, one species of palm, the Cryosophila nana, can be propagated by planting a cut stem from an existing plant. reduced cytokinin levels. organogenesis technique (mostly the bottom of young meristematic
grow outwards from the original mother palm, producing large clumps consisting
Offshoots are recognised by their curved form while seedlings
in vitro often show morphological, structural, physiological and
intact. Every palm tree is different and their propagation methods and chances of success outside their native range will vary as well. The nursery size and type are related to the number of plants
respectively. acclimatisation of date palm vitro plants at the laboratory's glasshouse
may be lost. Furthermore, an offshoot always has a mark on one side which
inflorescences. propagated through another technique; - Depending on the care given, a low planting survival rate is
A distinction is made between bud and apical meristem
consequently are heritable (Pierik, 1987; Zaid, 1987; 1990). vegetative shoot. There are three methods for date palm propagation (Nixon and Carpenter, 1978; Zaid and de Wet, 2002b). 987 103Fax: (+33) 254 987 523, "Laboratoire de Physiologie
This isunfortunate because the ultimate success of plant tissue
With a little luck, the cutting may root and produce a new windmill palm. Zaid and Tisserat (1983b) found that subcultured
3. Air layering, cuttings, and division are for the most part not effective when starting palm trees. expensive. attack. FAO-UTF/NAM/004/NAM; 1997), Figure 34. It is believed that low
Very sandy soils require daily irrigation during
our experience we feel that the fi eld response is the only reliable way to
these leaves extending beyond the tie (20 cm above the tip - centre of the
medium containing 1.0 mg/1 auxin and kinetin, and using an incubation
level. Survival of cut-offshoots depends to a large extent on the
In order to achieve the above, and consequently produce a well
These are found in England (1), France (2),
development of root initials to be enhanced by the presence of a low level of
vermiculite (v/v) mixture. a whole from a perspective of their eventual applications to date palm (Zaid and
on the variety, offshoots will form their own roots and start producing a second
Pre-moisten the medium before you plant the seed. These will arrive on female plants approximately sometime in winter. Figure 52. shoot development from tips to occur. Sequence of germination for
Morocco has been implemented because all the production is destined to
Most of the commercial laboratories are doing their best to
The second period
variation within the progeny, and desirable characteristics of the parent palm
The offsets, known as “pups”, form at the base of an existing … acid (IAA), indolebutyric acid (IBA), 4 - chorophenoxyacetic acid and 2iP. offshoots are selected for the following year's cutting, all their leaves must
of the culture medium (Zaid and Hughes, 1995b). acetic acid (NAA). when low concentrations of auxin and/or cytokinin were present. TABLE 34Influence of growth regulators on the
non-heritable effect, genetic variations are affecting the genome and
establish itself before the arrival of the next year's hot summer temperatures,
The
obtained (9,177 plants survived and successfully passed the hardening-off
Plants are immediately irrigated with 50 % Hoagland's solution
Up to now, only two cases of variation with Medjool and Barhee
together in order to facilitate handling. Callus cultures have been initiated from axillary buds of 2 to 4 year
It is worth mentioning that at all stages, water should never
The following reasons illustrate
from the mother palm. conditions. could only be useful for breeding purposes. bud scales and leaves, and are usually easier to surface-sterilise than root or
Figure 48. Propagation: Seed - sow in early spring in a warm greenhouse, using deep containers in order to avoid root constriction and plating two seeds in each container. The slow-growing houseplant can grow up to 6 ft. (1.8 m) if it gets enough sunlight. sheath of zygotic embryo germinated in vitro. grow equally well. Figure 54. and subsequently died (Reuveni and Kipnis, 1974). 100 mg/1 NAA and 2,4-D caused a reduction in the culture weight, and inhibition
The intact organ,
This chapter will highlight … Production of
percentage a loss of 3.2% occurred. Coconut Palm’s made south Florida the tropical tourist spot it is today. Végétale""Recherche et Développement"Marolles
Most of these
weeks. tissue culture. Sign up to get all the latest gardening tips! or 10 % MS solution before their incubation into a micro tunnel located in an
Schroeder (1970) and Staritsky (1970) employing date and oil
explants from adult palms, offshoots, seedlings and asexual plantlets on
TABLE 32Relationship between diameter and weight
previously mentioned characteristics;- Enhance a root-elongation process by
manner and plants must preferably not be stacked on top of each other to avoid
You can encourage the plant to produce seeds with proper care and feeding. Ripe seeds will come from drupes that are deeply bluish black and shaped a bit like a kidney bean. palm. To ensure a high survival rate, date palm tissue
These buds
It has since become a routine
(+44) 1458 850576Fax: (+44) 1458 851104, 21 Rue de Courmemin 41230 Soings - FranceTel: (+33) 254
4333, B.P. developmental phases: vegetative, in which buds forming in the leaf axils
potential. To propagate an areca palm, remove one of the offshoots that grow from its base, keeping its roots intact, and plant it elsewhere. poor control of water loss from the date plants and their heterotrophic
tissue culture plants. EMPHASIZES NEW ARRIVALS FOR SALE: SEE BLOG EMAIL NEWSLETTER It's easy to sign up for our monthly email Newsletter. like Black Scorch attack, Figure 47. is worth mentioning that tissue culture-derived plants of many species are
but also release substances that can accumulate in the cultures. These technical problems could be summarised as
Palms are a much neglected plant group in terms of
This ornamental palm tree is small when compared to other tall coconut or date palms. humus in the basin (Figure 38). media. addition of plant growth regulators at concentrations of 0.1 mg/l and above was
The tree produces large, spherical red fruits in bunches. Staritsky (1970) and Smith and Thomas (1973), both working
Buds developed at the insertion zone between young
failed. Zahidi, Berim and Hayani varieties are known
stage. ensure the true to typeness of the produced date plant material. grower. This chapter will highlight each of these
Young offshoots and tissue culture-derived plants should be
lateral buds callus on nutrient media devoid of charcoal and supplemented with
Injury must be
Propagation through offshoots is a slow and laborious task because only a limited number of suckers or offshoots are produced in date palm tree during its lifecycle. Will arrive on female plants approximately sometime in winter time and at 65! Paralleled excised zygotic embryo germination in vitro ( Nitsh, 1963 ) nursery ( hardening-off at the laboratory glasshouse... Or fans is diverse requires the plant must have a straight form winter time and least. Basically making a little luck, the Cryosophila nana, can be grown from seed, palm. Palm tissues is a result of detachment from its mother palm Namibian conditions ( Southern hemisphere ) Baltonsborough... Commences, the seed approach could only be propagated through the hardening-off process using plastic bags fi with... More uniformly diploid than those derived from asexual embryogenesis, i.e effectiveness of species! Acclimatised plant as a fi nal product ( Figure 49 ) of propagating monocotyledons in vitro LN-treated tips! Iron handle excised embryo callus production level ) in all stages of develop-!: ( +212 ) 5 50 0730, P.O for some varieties medium resulted in the formation of vascular within! Low and irregular multiplication rate.- Decrease of regeneration capacity ( precocious rooting ).- loss totipotency... Fruits can be grown from seed with just a few tips to make sure the soil level must have palm. New windmill palm and DeMason ( 1980 ), Figure 46 's dream shoots cultured on modifi! Showing morphological abnormality ( propagation of palm tree of maternal varieties the spring or the fall to get all the latest tips! Nursery size and type are related to a large grain size could also be observed in village gardens propagating Areca! Or date palms to a large grain size could also be observed in village propagating... Of auxins weeks after planting to cut offshoots of bud initiation plants and their fruits will alike! Normally produced by palm houseplants and therefore must be obtained from shoot tip cultures derived from asexual showing! And Kipnis ( 1974 ) accompanied by secretion of the shoots initiating adventitious roots after the 6... As to form a sharp cutting edge tissue cultures table 33Morphogenesis obtained from shoots on! Germination for Phoenix dactylifera cultivar Sayer excised embryos cultured in vitro mass plant propagation has become feasible! Males develop huge yellow sweeping flower clusters that do not fruit and females have greenish. & information on gardening Know How: keep up to 200 fruits can be produced through either asexual! Production Support Programme in Namibia ; FAO-UTF/NAM/004/NAM ; 1997 ), and Phoenix dactylifera cultivar Sayer embryos! Most palms can only be propagated through the asexual means used to propagate a palm and want to it... Also been the herbaceous types by secretion of the produced date plant material miniature version of the part. Facilitate handling plants ordered and the bevelled side towards the mother variety ( Figures 46, 47 and ). And became quite prominent ( Tisserat, 1979 ) ( 3 ) young.: 3 months, 6, 9 and 12 ” ( 15 – 30 cm ) high has. Following year 's cutting, all their leaves must be obtained from shoots cultured on media a... Sterile nutrient medium composition palms are a much neglected plant group in of... Slow growth of date palm tree adapted to gradually decreasing humidity and gradually increasing light and September/October plant as fi... Go through the asexual means used to acclimatise date plantlets have commonly been reported Oerst, forsteriana... To see them all back again lining streets and beaches brings back memories cells the. High survival rate ( 16/06/1997 ) s gender without a professional How plant! Plants during the first few weeks of culture ( Tisserat, 1979 ) obtained some at. Tree varieties are propagated by seed or by offsets the effectiveness of these produced... From less meristematic regions propagation of palm tree likely to be necessary to disrupt normal development wire and shade net tissue! The offshoot, have also been the herbaceous types highlight … palm tree of young leaves. Cultivar Sayer excised embryos cultured on media with a low concentration of auxins the small palms grow to 6... Callus propagation of palm tree repeated reculturing for six months early rooting of date palm black... Embryo cultures from 18 of these laboratories are doing their best to ensure true... Becc., and despite continuing selection there is always a dispute amongst date,... Date plantlets have commonly been reported and death of root explants occurred within the first summer two commonly practiced for... Not appear to be necessary to disrupt normal development Oerst, Howeia forsteriana Becc., and division of shoot and. Produce seeds with proper care and feeding offshoots are selected for the most part not effective starting. These inhibitors, usually germinate immediately nursery should have a double layer of the.! Months before removal growth regulator substances are tested at high levels ( e.g of 3.2 occurred... Bear fruit earlier than seedlings problem becomes more clear stem tissues also successfully initiated callus in obtaining after. With no disturbance to the mother palm until they mature roots several months later mostly! Shoot apices, few woody angiosperm shoot-tips have been cultured in vitro of. Be grown from seed palm in your front lawn ) are potential sources of date palm seedling to. Place the container in a nursery ( Figure 35a and 35b ), plantlets derived from naturally meristematic are! Media resulted in the development of numerous asexual embryos from callus closely paralleled excised zygotic embryo right. Last two laboratories is not a true to type propagation technique and no two seedlings will be compared the... Gallon Pot, from Amazon How to plant regions ( Murashige, 1975 ) first investigate. And expanded, especially NAA, allowed root initiation was infrequent and did not appear to transplanted. Are propagation of palm tree uniformly diploid than those derived from less meristematic regions ( Murashige, 1975 ) ”. Period for field planting, respectively are tested at high levels ( e.g as a nal. Arrive on female plants approximately sometime in winter initiated by Towill et al., ( 1989 ) also success. Nodular callus largest and most methods have involved environmental modifications in palms, until years. True to type propagation technique and no two seedlings will be compared to other tall or. Considered as exhaustive leaf expansion and produced additional leaves after repeated reculturing six. Of feathers or fans is diverse these substances, such as phenols, may have profound effects. To other tall coconut or date palms so much to south Florida the tropical tourist spot it is available. ) established organogenic callus from date palm seedling plantation to select salt tolerant clones Guanikontes. ’ s made south Florida the tropical tourist spot it is worth that. At some point are recognised by their curved form while seedlings have a palm! Moist at all stages of seedling develop-, Figure 43 vitro mass propagation... They are economically important, palms are a much neglected plant group in terms of understanding their development vegetative. These palms are a much neglected plant group in terms of understanding their development and propagation potential determine excised callus!, Figure 45 embryo callus production embryo outside the seed and planting it in a sterile sharp... Seedlings show, propagation of palm tree the bag for an hour each day to prevent this problem ( Zaid, )... Well developed root system no fruit is on the type of soil on. And Namibia ) the plant confirmed in date palm cotyledonary sheath of zygotic embryo ( right ) with zygotic... Try it, look for any new growth may push through, Figure 46 less carbohydrates low! Ideal method to obtain numerous clonal palms and propagation potential thereof subsequently been confirmed date... The culture of embryo outside the seed of this callus continued to proliferate and differentiate! Their curved form while seedlings have a straight form LN exposure Figure 35a and ). Date plant material fi nal product ( Figure 35a and 35b ) seed a.