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Asian Journal of Plant Sciences
  Year: 2003 | Volume: 2 | Issue: 11 | Page No.: 853-857
DOI: 10.3923/ajps.2003.853.857
 
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Diallel Analysis for Estimating Combining Ability of Quantitatively Inherited Traits in Upland Cotton

Mohammad Subhan, M. Qasim , Riaz-ud-Din Ahmad , M. Umar Khan , M. Amin Khan and M. Amir Amin

Abstract:
An 8x8 diallel analysis study on cotton (Gossypium hirsutum L.) was launched in the Department of Plant Breeding and Genetics, Faculty of Agriculture, Gomal University, D.I. Khan, Pakistan during, 1996-99 to estimate the combining ability analysis in the inheritance and expression of some significant quantitative characters like, height of main stem, number of bolls plant-1, yield of seed cotton plant-1, boll weight and lint percentage using Griffing’s Method- II, Model-1 in F1 generation. The mean squares for General combining ability (GCA) effects, (SCA) effects and reciprocals effects were observed to be highly significant for all the mentioned characters. The estimates of component of variance clarified that the variance due to SCA was much higher in magnitude and more vital than GCA for traits like height of main stem plant-1, number of bolls plant-1, yield of seed cotton plant-1 and boll weight showing thereby the predominance of non additive type of gene action with (dominance or epistatic effects) in the inheritance of these traits. Whilst GCA was much higher in magnitude and more vital than SCA reflecting the role of additive type of gene action in case of lint percentage.
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How to cite this article:

Mohammad Subhan, M. Qasim , Riaz-ud-Din Ahmad , M. Umar Khan , M. Amin Khan and M. Amir Amin , 2003. Diallel Analysis for Estimating Combining Ability of Quantitatively Inherited Traits in Upland Cotton. Asian Journal of Plant Sciences, 2: 853-857.

DOI: 10.3923/ajps.2003.853.857

URL: https://scialert.net/abstract/?doi=ajps.2003.853.857

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