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Association of Morphological Characters and Lodging Resistance in a Cross Involving Milford‐Type Oats 1
Author(s) -
Bhamonchant Prakrit,
Patterson Fred L.
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/cropsci1964.0011183x000400010016x
Subject(s) - christian ministry , library science , citation , resistance (ecology) , biology , horticulture , agronomy , political science , computer science , law
A NUMBER of plant characters have been studied in attempting to associate morphological characters with lodging resistance in oats, Avena. sativa L. Large culm diameter, thick culm wall, short internodes, short height, and long leaf sheath have most often been associated with better lodging resistance but there have been frequent exceptions. The literature has been well summarized (3, 4, 5). Contradictory results may in part be attributed to different germplasm, different techniques, and study under different environments. The moderately dense panicle type of Milford C.I. 7320 oats is associated with high straw strength (r = .6) with one major gene pair governing the inheritance of panicle type (6). This is a higher association than generally reported for other morphological characters which might contribute directly to resistance to lodging. The Milford type is characterized also by large neck and culm and generally by short height. In this research other morphological characters were studied in crosses with the Milford type to determine if the relationship between readily measurable morphological characters and resistance to lodging was higher than usual in this germplasm. The higher association of resistance to lodging with readily measurable or observable morphological characters in specific germplasm should speed breeding for improved resistance to lodging.