Abstract
Sixty one double haploid (DH) lines were evaluated for yield components and yield and compared with the three corresponding hybrids from which they were derived through anther culture. Analysis of a 6×6 diallel experiment led to the selection of these hybrids based on their high heterosis and revealed the nature of gene action of the characters under evaluation. The DH lines along with the hybrids and parents were planted following a simple lattice design with two replications. The results show that in DH lines the values of the characters expressing predominantly additive genetic effects could reach the heterotic level of the hybrids. For characters including yield showing predominantly dominance effects, values in the DH lines were significantly lower than those of the corresponding hybrids. The promising DH lines, however, possess a higher yield potential than the better parents.
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Bong, B.B., Swaminathan, M.S. Magnitude of hybrid vigor retained in double haploid lines of some heterotic rice hybrids. Theoret. Appl. Genetics 90, 253–257 (1995). https://doi.org/10.1007/BF00222210
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DOI: https://doi.org/10.1007/BF00222210