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Asian Journal of Agricultural Research
  Year: 2015 | Volume: 9 | Issue: 3 | Page No.: 84-94
DOI: 10.3923/ajar.2015.84.94
 
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Identification of Heterotic Crosses Based on Combining Ability in Vegetable Amaranthus (Amaranthus tricolor L.)

Anu Rastogi, Brij K. Mishra, Mrinalini Srivastava, Ameena Siddiqui, Rawli Pandey, Nidhi Verma and Sudhir Shukla

Abstract:
The present study is an effort to study heterosis, combining ability variances and effects on yield and its components in five nearly homozygous morphologically contrasting distinct accessions of vegetable Amaranth based on half diallel mating design to isolate promising crosses having high foliage yield and nutritional components. Both additive and non-additive variances were important for a majority of the characters except for chlorophyll content in F2 generation. Genetic analysis revealed a preponderance of non-additive gene action for all the traits. It was noticed that none of the parents were good general combiner for all the traits in both the generations except AV-26 and AV-28 which showed significant values for most of the traits suggesting that these accessions can be used in a multiple crossing programme for isolating high yielding varieties. The crosses AV-49xAV-62 and AV-28xAV-62 were observed promising for most of the traits which can be commercially exploited for the production of F1 hybrids. The crosses AV-49xAV-62 and AV-28xAV-62 having high foliage yield with increased plant height, branches per plant and leaf size can be used as transgressive segregants to obtain highest returns from Amaranthus breeding. However, the cross combinations showed no inbreeding depression can be exploited in advance generations to develop nutritionally rich high yielding varieties.
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How to cite this article:

Anu Rastogi, Brij K. Mishra, Mrinalini Srivastava, Ameena Siddiqui, Rawli Pandey, Nidhi Verma and Sudhir Shukla, 2015. Identification of Heterotic Crosses Based on Combining Ability in Vegetable Amaranthus (Amaranthus tricolor L.). Asian Journal of Agricultural Research, 9: 84-94.

DOI: 10.3923/ajar.2015.84.94

URL: https://scialert.net/abstract/?doi=ajar.2015.84.94

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