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Effect of Nutrient and Moisture Levels on Competitive Ability in Barley ( Hordeum vulgare L.) 1
Author(s) -
Hartmann R. W.,
Allard R. W.
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/cropsci1964.0011183x000400040028x
Subject(s) - hordeum vulgare , citation , library science , biology , agronomy , computer science , poaceae
THE barley varieties 'Atlas' and 'Vaughn' are known to affect each other in vegetative form when grown in proximity (1, 2) and they also affect one another in reproductive capacity when grown under population conditions (3, 4). In general Vaughn is the more vigorous type in pure stands, but in mixture Atlas has a depressing effect on the vegetative growth of Vaughn, and it also tends to dominate mixed populations at the expense of Vaughn. Edwards and Allard (1) have shown that the competition between these genotypes is not associated with struggle for limited supplies of light. The present experiment vas designed to test whether the competition has its basis in struggle for moisture or nutrients.