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193173

OPTIMIZATION PROTOCOL FOR IN VITRO ROOTING OF DATE PALM (Phoenix dactylifera L.)

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Last updated: 04 Jan 2025

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Abstract

A successful tissue culture regime for date palm is determined by the ability of producing healthy in vitro plantlets capable of surviving for acclimatization stage which normally requires a period of incubation in the laboratory. An improved protocol involving paclobutrazol (PBZ) and polyethylene glycol (PEG) has been developed to achieve rooting improvement. Plantlets of date palm cv. Samani, derived from direct somatic embryogenesis, were investigated in two separate experiments. In the first experiment, Plantlets were cultured on 1/2 MS solid medium containing 0.1 mg/l NAA+ 0.1 mg/l BA + 0.5 g/l activated charcoal as a basal nutrient medium supplemented with PBZ at 2, 4, 6 and 8 mg/l combined with sucrose at 30, 40 and 50 g/l. In the second experiment, explants were cultured on 1/2 MS medium+40 g/l sucrose+0.1 mg/l NAA+ 0.5 g/l activated charcoal supplemented with PEG at 0, 2, 4, 6 and 8 g/l. All cultures were incubated under a 16h photoperiod of 4000 lux light intensity at a temperature of 27± 2 °C. The data revealed that, medium contained 4 mg/l PBZ combined with 40 or 50 g/l sucrose increased the thickness of plantlets, also accelerated the root formation and elongation and promoted secondary roots. Addition of PEG at 6 or 8 g/l to the culture medium enhanced plantlets survival during acclimatization stage. Histological study showed that PEG at high concentrations increased the wax deposition on epidermal layer than control plants.

DOI

10.21608/ejar.2009.193173

Authors

First Name

REHAB A.

Last Name

SIDKY

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Affiliation

The Central Laboratory for Date Palm Research and Development, Agricultural Research Center, Giza, Egypt.

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First Name

ZEINAB E.

Last Name

ZAID

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Affiliation

The Central Laboratory for Date Palm Research and Development, Agricultural Research Center, Giza, Egypt.

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Orcid

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First Name

ABDEL – MONEEM

Last Name

EL- BANA

MiddleName

-

Affiliation

The Central Laboratory for Date Palm Research and Development, Agricultural Research Center, Giza, Egypt.

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Volume

87

Article Issue

1

Related Issue

27369

Issue Date

2009-03-01

Receive Date

2008-06-30

Publish Date

2009-03-01

Page Start

277

Page End

288

Print ISSN

1110-6336

Online ISSN

2812-4936

Link

https://ejar.journals.ekb.eg/article_193173.html

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https://ejar.journals.ekb.eg/service?article_code=193173

Order

23

Type

Original Article

Type Code

1,041

Publication Type

Journal

Publication Title

Egyptian Journal of Agricultural Research

Publication Link

https://ejar.journals.ekb.eg/

MainTitle

OPTIMIZATION PROTOCOL FOR IN VITRO ROOTING OF DATE PALM (Phoenix dactylifera L.)

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Article

Created At

22 Jan 2023