International Journal of Agricultural Sciences

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Inbreeding depression and residual heterosis for kernel characters in F2 generation of aromatic rice


Affiliations
1 Department of Genetics and Plant Breeding, College of Agriculture, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India
2 Agricultural Research Institute, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India
     

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A field experiment was conducted during Rabi, 2009-10 and Kharif, 2010 involving 7 parents, 7 F1 hybrids and their corresponding F2 populations to study the inbreeding depression and residual heterosis for kernel characters i.e. kernel length, kernel breadth, L/ B ratio in aromatic rice. The cross combinations, PUSA1121 × BM71 and PUSA1121× MTU1010 for kernel length were identified as better crosses for further advancement to develop pure lines with high yield and quality.

Keywords

Aromatic Rice, Kernel Characters, Inbreeding Depression, Residual Heterosis, Heterosis
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  • Inbreeding depression and residual heterosis for kernel characters in F2 generation of aromatic rice

Abstract Views: 314  |  PDF Views: 0

Authors

M. Rajendar Reddy
Department of Genetics and Plant Breeding, College of Agriculture, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India
CH. Surendar Raju
Agricultural Research Institute, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India
D. Sravani
Department of Genetics and Plant Breeding, College of Agriculture, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India
S. Narender Reddy
Department of Genetics and Plant Breeding, College of Agriculture, Acharya N.G. Ranga Agriculture University, Rajendranagar, Hyderabad, A.P., India

Abstract


A field experiment was conducted during Rabi, 2009-10 and Kharif, 2010 involving 7 parents, 7 F1 hybrids and their corresponding F2 populations to study the inbreeding depression and residual heterosis for kernel characters i.e. kernel length, kernel breadth, L/ B ratio in aromatic rice. The cross combinations, PUSA1121 × BM71 and PUSA1121× MTU1010 for kernel length were identified as better crosses for further advancement to develop pure lines with high yield and quality.

Keywords


Aromatic Rice, Kernel Characters, Inbreeding Depression, Residual Heterosis, Heterosis