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Single Height‐Gene Effects in Doubled Haploid Sorghum bicolor (L.) Moench as Influenced by Stand Density 1
Author(s) -
Schertz K. F.
Publication year - 1973
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/cropsci1973.0011183x001300030011x
Subject(s) - biology , panicle , sorghum , sorghum bicolor , leaf blade , doubled haploidy , agronomy , locus (genetics) , poaceae , ploidy , horticulture , gene , genetics
The expression of distinctive characteristics of short and tall sorghum ( Sorghum bicolor (L.) Moench) was determined in two stand densities. A short doubled‐haploid line, recessive at four major height loci (4‐dwarf), was compared with two tall mutant derivatives, recessive at three loci (3‐dwarf) and dominant at the Dw 3 locus. The 3‐dwarf plants exceeded the 4‐dwarf plants in height, internode length, leaf‐blade length, grain yield, and kernel weight. The 4‐dwarfs, however, had longer panicles and peduncles. The denser stand had a depressing effect on panicle length of the 3‐dwarf plants but not on the panicle length of the 4‐dwarf plants. The two tall lines differed in leaf‐blade width and in weight per 1,000 kernels.