Study of gene action in maize hybrids

Jebaraj, S. and Selvakumar, A. and Shanth, P. (2010) Study of gene action in maize hybrids. Indian Journal of Agricultural Research, 44 (2). pp. 136-140.

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Investigation was carried out in maize with 12 parents and 32 hybrids through Line x Tester analysis to study the gene action. The analysis revealed the preponderance of non-additive gene action for seed yield and its components. Among the parents studied the following parents viz., UMI 112, UMI 264, UMI 278, UMI 285 and Co 1 were good general combiners with higher mean values for seed yield and different yield components viz., plant height, ear length, kernel rows and 100 grain weight. Among the 32 hybrids evaluated the hybrids viz., UMI 264 x UMI 285, UMI 278 x UMI 285 and UMI 278 x CO 1, UMI 314 x UMI 285, UMI 328 x UMI x UMI 61 and UMI 334 x UMI 325 were identified as good specific combiners for single plant yield. These hybrids could be utilized in heterosis breeding to exploit hybrid vigour.

Item Type: Article
Author Affiliation: Agricultural College and Research Institute Madurai- 625 104, India
Subjects: Crop Improvement > Genetics/Genomics
Divisions: Maize
Depositing User: David T
Date Deposited: 03 Jan 2011 20:25
Last Modified: 03 Jan 2011 20:31
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