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Effect of Cytoplasmic Source on the Combining Ability of Agronomic Traits in Pearl Millet
Author(s) -
Yadav O. P.
Publication year - 1994
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1994.tb00729.x
Subject(s) - biology , pennisetum , cytoplasm , cytoplasmic male sterility , hybrid , pearl , botany , agronomy , genetics , philosophy , theology
Among the available sources of cytoplasmic male sterility only the A 1 source has so far been exploited for breeding commercial hybrids of pearl millet ( Pennisetum glaucum (L.) R. Br.). The influence of this source was studied by comparing the combining ability of five pairs of lines that differ in their cytoplasmic source. The effect on the expression of the traits, though modified by environment, was significant. The manifestation of cytoplasmic effects on general combining ability (GCA) was different for various traits. In general, the A 1 cytoplasm showed a positive influence on GCA estimates for plant height, grain yield, and a negative influence on days to flowering. The variable magnitude of cytoplasmic effects on the GCA of lines indicated that such effects were the result of interaction between cytoplasm and nuclear genes.