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Evaluation the Growth Performance of Egyptian Garlic Landraces and In vitro Synseeds of Bulblets Formation

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Last updated: 22 Jan 2023

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Abstract

Egyptian garlic cultivars suffered degenerations; lower bulb yield and smaller size of bulbs which represent a crucial
problem. A survey of some Egyptian landraces to detect there genetic diversity is considered in this study . In addition,
developing of simple method for bulblets regeneration and synthetic seed formation to decrease amount of clove seeds.
Fourteen vegetative growth and bulb characteristics for 27 Egyptian garlic landraces were measured during two growing
season to determine the phenotypic variations under condition of New Borg El-Arab, Egypt . An in vitro study was, also,
carried out to determine the direct shoot induction and bulblets formation for six selected landraces and under three media
protocol. The results of the field experiment revealed that, Significant differences among all studied local cultivars and
ecotypes of Egyptian garlic were observed for vegetative growth, bulb and total yield characteristics . Among the studied
varieties of Egyptian landraces, Borg El-Arab landrace was superior in vegetative growth as plant height (cm), leaves no./
plant, leaf length (cm), leaf width (mm), plant fresh weight (g) and foliage fresh weight (g). While, quality characters were
associated with purple bulbs landraces like Egaseed and Sids-40-Ayat. Bulb dry matter percentage ranged from 36.6 to
45.68 % and from 35.07 to 44.89 % however, average cloves number per bulb was ranged from 9.33 to 40.00 and from
3.55 to 32.71 in the first and second growing seasons, respectively. The results for the invitro experiment revealed that
efficient and simple method of bulblets regeneration and improving multiplication rate were developed for six selected
landraces using three different media. Garlic explants (cultured on MS media) were supplemented with 6 % sucrose and 2
mg/l JA (T-3); produced significant higher mean values for numbers of bulblets /clove (12.61) and higher insignificant
mean values for numbers of shoots and bulblets /explant, bulblets formation % and numbers of bulblets per clove
compared with control treatment (T-1). Control treatment (T-1) produced the highest significant average bulblet weight
(259.72 mg). "Salaqus-3" landrace was superior and gave the highest significant mean values for number of shoots per
explant and bulblets per clove compared with other landraces. "Clone-21" produced the highest bulblet weight (232.94
mg). Synthetic seeds for six garlic landraces formed by immersing bulblets in gel matrix (3% sodium alginate solution),
and exposure to calcium chloride solution (2.5 %) were germinated successfully in unsterilized soil mixture consisted of
peatmoss, sand and soil (1:1:1). Conclusion: Egyptian garlic landraces showed great variability and a promising in vitro
performance for plant regeneration and bulblets formation. This finding could be used as alternative propagation method,
cultivars rejuvenation and germplasm conversation management along with capsulation technology.

DOI

10.21608/alexja.2019.33821

Keywords

garlic Landraces – bulblets formation, Jasmonic acid (JA)- Synthetic seeds- capsulation

Authors

First Name

H. hegazy

Last Name

Hegazy

MiddleName

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Affiliation

Vegetable crops department faculty of agriculture Alexandria University

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Orcid

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First Name

A. Elsharkawy

Last Name

Gehan

MiddleName

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Affiliation

Vegetable crops department faculty of agriculture Alexandria University

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City

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Orcid

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First Name

S. ahmad

Last Name

Salat elnabe

MiddleName

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Affiliation

City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Egypt

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Volume

63

Article Issue

6

Related Issue

5650

Issue Date

2018-12-01

Receive Date

2019-06-02

Publish Date

2018-12-01

Page Start

339

Page End

352

Print ISSN

0044-7250

Online ISSN

2535-1931

Link

https://alexja.journals.ekb.eg/article_33821.html

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https://alexja.journals.ekb.eg/service?article_code=33821

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2

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Original Article

Type Code

514

Publication Type

Journal

Publication Title

Alexandria Journal of Agricultural Sciences

Publication Link

https://alexja.journals.ekb.eg/

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Article

Created At

22 Jan 2023