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188482

Influence of Some Pregerminaton Treatments on Seed Germination and Seedling Quality of Two Ornamental Palm Species Common in Egypt I- Golden Cane Palm (Chrysalidocarpus lutescens H. Wendl)

Article

Last updated: 23 Jan 2023

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Horticulture

Abstract

A pot experiment was conducted under shade at the nursery of Antoniades Botanical Garden, Hort. Res. Inst., Alexandria, Egypt during 2014 and 2015 seasons in order to overcome the hardseededness of golden cane palm (Chrysalidocarpus lutescens H. Wendl.) seeds by subjecting them after removing the fleshy exocarp to the following treatments: untreated depulped seeds (control), soaking in either tap or hot (60-70 °C) water for 48 h. under room temperature, scarifying the hard endosperm by either clefting it with a hacksaw or rasping  it at the distal rounded end that facing the placental pointed-end with a file and soaking in concentrated H2SO4 (98.5 %) for either 1 or 2 h in a completely randomized design, replicated thrice, each replicate contained 10 seeds. The results have shown that soaking treatments either in tap or hot water for 48 h. gave the highest germination % (87.33 and 85.00 % in the first season and 90.00 and 87.50 % in the second one, respectively) compared to the control and other treatments in the two seasons. The least percent of germination was recorded by soaking in concentrated sulphuric acid for either 1 or 2 h., while the seeds treated with clefting or rasping treatments have failed to germinate in both seasons. The least no. days to either the highest percent of germination (G.V.) or 50 % germination (MGR) was also achieved by soaking either in tap or in hot water treatments. The means of germination rate index (GRI), vigour index (V.I.), seed viability (S.V.) and plumule length, as a real indicator for germination vigour, the lengths of seedling, sheath, leaf, petiole and root and No. leaves/seedling, as well as leaf content of chlorophyll a, b, carotenoids and total soluble sugars were also improved by the various treatments used in this study except the treatments of  H2SO4 , but the excellence in most previous parameters was for soaking the depulped seeds in tap water treatment, which gave the utmost highest values at all in both seasons and followed by soaking in hot water one. Hence, it can be recommended to soak the depulped seeds of golden cane palm (Chrysalidocarpus lutescens H. Wendl.) in either tap or hot water for 48 h. in order to get the best germination characters and seedling quality.

DOI

10.21608/jalexu.2016.188482

Keywords

Chrysalidocarpus lutescens H. Wendl, Germination, Soaking, thermal scarification, mechanical scarification, chemical scarification

Authors

First Name

Sayed

Last Name

Shahin

MiddleName

Mohamed

Affiliation

Botanical Gardens. Res. Dept., Hort. Rrs. Inst., ARC, Giza, Egypt

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Orcid

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First Name

Hesham

Last Name

El-Tayeb

MiddleName

Fakhry

Affiliation

Botanical Gardens. Res. Dept., Hort. Rrs. Inst., ARC, Giza, Egypt

Email

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City

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Orcid

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Volume

21

Article Issue

1

Related Issue

26004

Issue Date

2016-03-01

Receive Date

2016-01-28

Publish Date

2016-03-31

Page Start

62

Page End

73

Print ISSN

1110-5585

Online ISSN

2785-9525

Link

https://jalexu.journals.ekb.eg/article_188482.html

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https://jalexu.journals.ekb.eg/service?article_code=188482

Order

6

Type

Research papers

Type Code

1,789

Publication Type

Journal

Publication Title

Journal of the Advances in Agricultural Researches

Publication Link

https://jalexu.journals.ekb.eg/

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Article

Created At

23 Jan 2023