Heterosis for Leaf, Tassel Characters and Yield in Single Cross Hybrids of Maize (Zea mays L.)
2012
Kumar, T Sandeep | Reddy, D. M. | Naik, V Saida | Nagaraju, Chikkala
The present experiment was undertaken with an objective to assess the heterosis for leaf, tassel characters and yield in the single cross hybrids of maize, which were generated from recycled elite inbred lines. Among all the traits, grain yield per plant displayed highest magnitude of heterosis followed by number of branches per tassel, leaf area index, tassel length and SPAD chlorophyll. Heterosis and heterobeltiosis studies also revealed that the hybrids BML 7 x BML 15 showed maximum heterosis for leaf area index, BML 6 x BML 15 for SPAD chlorophyll, CM 149 X BML 6 for tassel length, CM 133 x CM 148 for number of branches per tassel and CM 148 X BML 15 for grain yield per plant. These crosses offer the best possibilities of further exploitation to increase the maize productivity.
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