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Grain Filling Period of Sorghum Parents and Hybrids 1
Author(s) -
Quinby J. R.
Publication year - 1972
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/cropsci1972.0011183x001200050041x
Subject(s) - hybrid , biology , sorghum , endosperm , period (music) , agronomy , sorghum bicolor , dry weight , poaceae , horticulture , zoology , botany , physics , acoustics
The length of the grain‐filling period was determined for three female parents of Sorghum bicolor (L.) Moench, four male parents, and their 12 possible hybrids. All entries reached maximum kernel weight between 30 and 40 days after flowering. Mature kernels of male parents were heavier than those of the hybrids. Differences in duration of dry weight accumulation between parents and hybrids were not significant. Hybrid vigor appeared not to lengthen the period of dry weight accumulation in the endosperm.