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55427

TYPES OF GENE ACTION AND HYBRID VIGOUR FOR YIELD AND QUALITY TRAITS OF MELON (CUCUMIS MELO, L.).

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Last updated: 22 Jan 2023

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Abstract

  This  study was carried out in two successive summer seasons (2012 and 2013), at the Experimental Farm of Research Station, Qanater El-Khairya, El- Kalupia Governorate, Agriculture Research Center. The main objectives of this investigation were to estimate of magnitude of additive and non-additive gene effects for some traits in an attempt to stablish some inbred lines. The study also aimed to estimate heterosis degree, relative to mid, better parents and the standard cultivar to determine the hybrid vigour for some important characters. Phenotypic correlation coefficients between all possible pairs of the different studied traits were estimated. The following traits were assessed: early and total yield as fruit number and weight, average fruit weight, shape index, skin and flesh colour, flesh thickness, β carotene, vitamin C and sugars contents. The obtained results showed that both additive and non-additive gene effects were involved, the additive gene effects appeared to be playing the main role in the inheritance of all studied traits, since the estimated GCA: SCA ratio values ranged from 4.4 to 57.8. None of the parents found to be good combiner for all characters. Generally the two parents Magyar Kincs and Muszkotàly were the best combiner for breeding to most characters. It is noticed that the bestcombinations were resulted from crossing between these two parents or between one of them and other parent. Hybrid vigour was detected for early and total yield, as well as, most fruit characters. In some crosses, high better parent heterosis and potence ratio values were given for these traits supporting the over dominance hypothesis. Other degrees of dominance were observed by many crosses concerning some traits. High estimated standard heterosis were reflected by three crosses i.e., Shahd El-Dokki X Muszkotàly,  Shahd El-Dokki X Magyar Kincs and   Magyar Kincs X Muszkotàly for yield and most important traits. Hence, it could be suggested that these crosses may be recommended as new promising  hybrids for commercial production of melon after further evaluation. Desirable correlations were detected between many pairs of character. In many cases phenotypic correlations used to help breeders in selecting and improving quantitative of difficulty measured characters through the selection for simply and correlated ones. 

DOI

10.21608/jpp.2014.55427

Keywords

Combining ability, Heterosis, Dominance, Hybrid vigour, heterobeltiosis potence ratio, correlation, selection

Authors

First Name

M.

Last Name

Hatem

MiddleName

K.

Affiliation

Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center

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Orcid

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First Name

Seham

Last Name

Aly

MiddleName

M. M.

Affiliation

Veg. Res. Dep., Hort. Res. Inst., Agric. Res. Center

Email

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City

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Orcid

-

First Name

Mona

Last Name

Khalil

MiddleName

R.

Affiliation

Dep. Horticulture, Faculty of Agric., Shibin El-Kom , Egypt

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Volume

5

Article Issue

5

Related Issue

8248

Issue Date

2014-05-01

Receive Date

2019-10-27

Publish Date

2014-05-01

Page Start

801

Page End

820

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_55427.html

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https://jpp.journals.ekb.eg/service?article_code=55427

Order

6

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Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

Publication Link

https://jpp.journals.ekb.eg/

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Article

Created At

22 Jan 2023