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Developmental Phases of Grain Sorghum ( Sorghum vulgare , Pers.) as Influenced by Variety, Location, and Planting Date 1
Author(s) -
Pauli A. W.,
Stickler F. C.,
Lawless J. R.
Publication year - 1964
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/cropsci1964.0011183x000400010004x
Subject(s) - sorghum , sowing , variety (cybernetics) , citation , crop , biology , sorghum bicolor , library science , horticulture , agronomy , mathematics , computer science , statistics
MUCH information has been accumulated on yield performances of varieties of grain sorghum and on determinations of optimum planting dates as related to yield. Less attention has been given to determining effects of dates of planting on times of specific stages of development in different varieties of grain sorghum. Information of this type has been reported by Karper et al. (3) and Martin and Sieglinger (5)y who found that medium to late planting dates generally resulted in a shorter total growth period than early plantings. Results obtained by Paulson generally agree. Four varieties of grain sorghum required progressively shorter periods to reach 50% full bloom as date of planting was delayed from May 1 to July 10 at 2-week intervals. Little information is available regarding the beginning or duration of intermediate stages of development in sorghum. Chien (1) reported that the stem apex of sorghum