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Quantitative Inheritance of Some Head and Seed Characteristics in Sorghum [ Sorghum bicolor (L.) Moench] 1
Author(s) -
Fanous Mamdouh A.,
Weibel Dale E.,
Morrison Robert D.
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100060004x
Subject(s) - biology , heritability , sorghum , sorghum bicolor , selection (genetic algorithm) , sweet sorghum , genetic gain , head (geology) , agronomy , horticulture , botany , genetic variation , genetics , gene , computer science , paleontology , artificial intelligence
Heritabilities and expected genetic advances were estimated for head length, seed‐branch length, node number per head, and 100‐seed weight in five crosses of sorghum [ Sorghum bicolor (L.) Moench]. Phenotypic, genotypic, and environmental correlation coefficients also were calculated. Head length and seed‐branch length exhibited relatively large estimates of heritability and expected genetic advance in each cross. In general, high positive genotypic correlations were observed between these characters. Therefore, rapid progress should result from early generation slection for either character, which should also result in simultaneous improvement in the other character as well. Node number per head and 100‐seed weight exhibited relatively low heritabilities and expected genetic advances. Substantial progress under early generation selection for these characters could not be expected. However, selection for longer heads should increase node number per head in four of the five crosses and 100‐seed weight in one cross, since high positive genotypic correlations were observed in those instances.