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174938

HETEROSIS AND COMBINING ABILITY IN MELON (CUCUMIS MELO L.)

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Last updated: 04 Jan 2025

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Abstract

The purpose of this study was to estimate heterosis, general and specific combining ability in melon hybrids to identify the best combinations during the period from 2017 to 2019 at the Vegetable Research Farm, Horticultural Research Institute, Agricultural Research Center (ARC), Kaha and Dokki, Egypt. Six parents and their respective hybrids were evaluated in a randomized complete block design (RCBD) with three replications. The following traits were assessed of: main stem length, number of leaves, average fruit weight, fruit length, fruit diameter, flesh thickness, fruit cavity, fruit shape index, TSS and total yield/fed. The heterotic expression for total yield was the most important trait in this investigation. Potence ratio that measured the average of dominance confirmed the partial dominance for plant length and total yield but over-dominance appeared in the other characters. The range of both types of F1 heterosis for studied characters indicated that the expression of heterosis varied according to different crosses and characters investigated. The results showed significant and highly significant mean squares for both GCA and SCA in all studied traits except fruit shape index, indicating the important role of both additive and non-additive gene effects in the expression of these traits. However, a greater ratio of GCA/SCA than unity as detected for number of leaves, fruit diameter, fruit weight, TSS and total yield revealing that the inheritance of these traits mainly was controlled by additive gene action. The estimates of GCA effects in individual parental genotypes of the F'1s generation were significant and highly significant for the most studied traits. However, the crosses (P1×P3) and (P2×P4) achieved highly SCA effects for the most traits in this study, which means that GCA effects of the parents were reflected in the SCA effects in the crosses for the most studied traits.

DOI

10.21608/mjppf.2019.174938

Keywords

Cucumis melo, Inbred Lines, Heterosis, potence ratio, GCA, SCA, Melon

Authors

First Name

A. A.

Last Name

EL- Sayed

MiddleName

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Affiliation

Department of Vegetables, Medicinal and Aromatic Plant Breeding, Horti. Res. Inst., Agric. Res. Cen., Giza, Egypt.

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Orcid

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First Name

Amani H.

Last Name

Gharib

MiddleName

-

Affiliation

Department of Vegetables, Medicinal and Aromatic Plant Breeding, Horti. Res. Inst., Agric. Res. Cen., Giza, Egypt.

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City

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Orcid

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First Name

M. A. F. A.

Last Name

El-Tahawey

MiddleName

-

Affiliation

Department of Vegetables, Medicinal and Aromatic Plant Breeding, Horti. Res. Inst., Agric. Res. Cen., Giza, Egypt.

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Volume

4

Article Issue

5

Related Issue

25385

Issue Date

2019-10-01

Receive Date

2021-06-03

Publish Date

2019-10-01

Page Start

429

Page End

441

Print ISSN

2357-0830

Online ISSN

2735-346X

Article File

MJPPF_Volume 4_Issue 5_Pages 429-441.pdf

PDF . 254.5kB

Link

https://mjppf.journals.ekb.eg/article_174938.html

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https://mjppf.journals.ekb.eg/service?article_code=174938

Order

4

Type

original papers

Type Code

1,393

Publication Type

Journal

Publication Title

Menoufia Journal of Plant Production

Publication Link

https://mjppf.journals.ekb.eg/

MainTitle

HETEROSIS AND COMBINING ABILITY IN MELON (CUCUMIS MELO L.)

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Article

Created At

23 Jan 2023