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42432

ESTIMATING HETEROSIS AND COMBINING ABILITY FOR in vivo AND in vitro TRAITS USING DIALLEL CROSS IN MAIZE (Zea mays L.)

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Last updated: 22 Jan 2023

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Abstract

Combining ability and heterosis studies were performed for in vivo and in vitro traits in a diallel cross involving five maize inbred lines. Mean squares of genotypes were found to be significant for all in vivo and in vitro studied traits except callus formation percentage. Mean squares of parents were found to be significant for all in vivo and in vitro studied traits except grain yield per plant, callus fresh weight II and callus formation percentage. Mean squares of the resultant ten hybrids combination were found to be significant for all in vivo and in vitro studied traits except callus formation percentage. Mean square estimates of parent vs. crosses were found to be highly significant for all studied traits except callus growth rate III. Both general (GCA) and specific combining ability (SCA) variances were found to be highly significant for all in vivo and in vitro studied traits except callus formation percentage and callus growth rate II. The GCA/SCA ratios were found to be less than unity for all traits except callus growth rate III. The inbred line L173 was considered to be good general combiner for all studied traits (plant height, earheight, ear length, ear diameter, number of rows per ear, grain yield per plant, callus fresh weight I, callus fresh weight II, callus fresh weight III, callus formation percentage, callus growth rate I, callus growth rate II and callus growth rate III). The correlation coefficient was positive and highly significant between in vitro and in vivo characters except callus growth rate III. Information generated from this study can be useful for selecting parents and hybrids to maximize the grain yield and its components in maize.    

DOI

10.21608/jpd.2011.42432

Keywords

Maize (Zea mays L.), Diallel cross, Heterosis, Combining ability, in vivo and in vitro traits

Authors

First Name

Hamdy

Last Name

Emara

MiddleName

-

Affiliation

Plant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City, Minufiya University,Egypt.

Email

-

City

Sadat city

Orcid

-

First Name

Ahmed

Last Name

Nower

MiddleName

Abas

Affiliation

Plant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City, Minufiya University,Egypt.

Email

-

City

Sadat city

Orcid

-

First Name

Khaled

Last Name

Salem

MiddleName

-

Affiliation

Plant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City, Minufiya University,Egypt.

Email

-

City

Sadat city

Orcid

-

First Name

Shams

Last Name

El-Taher

MiddleName

-

Affiliation

Plant Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), Sadat City, Minufiya University,Egypt.

Email

-

City

Sadat city

Orcid

-

Volume

16

Article Issue

1

Related Issue

6661

Issue Date

2011-01-01

Receive Date

2010-11-09

Publish Date

2011-01-01

Page Start

101

Page End

120

Print ISSN

1110-2543

Online ISSN

2682-3322

Article File

JPD_Volume 16_Issue 1_Pages 101-120.pdf

PDF . 449.9kB

Link

https://jpd.journals.ekb.eg/article_42432.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=42432

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7

Type

Original Article

Type Code

867

Publication Type

Journal

Publication Title

Journal of Productivity and Development

Publication Link

https://jpd.journals.ekb.eg/

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Article

Created At

22 Jan 2023