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Seed Production of Stylosanthes humilis as Influenced by Origin and Temperature During Flowering 1
Author(s) -
Schoonover H. C.,
Humphreys L. R.
Publication year - 1974
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/cropsci1974.0011183x001400030039x
Subject(s) - inflorescence , biology , stylosanthes , pasture , agronomy , cultivar , legume , monogastric , ruminant , selection (genetic algorithm) , horticulture , botany , artificial intelligence , computer science
Ten selections of the tropical annual pasture legume Stylosanthes humilis , grown in controlled‐environment cabinets, were induced to flower at a common time and then subjected for 60 days to 31/24, 24/17, or 17/10C, day/night temperatures. Mature seed were not formed on inflorescences differentiated at 17/10C. This regime also decreased inflorescence number and floret number. Seed production at 31/24 and 24/17C was similar, but selections differed in their response to temperature and in the pathways through which response was reflected. The cultivar ‘Lawson’ and a selection from Dayboro, Queensland, were superior. Ecological implications are considered.