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Associations Among Traits in Progenies from Avena sativa L. ✕ A. sterilis L. Crosses 1
Author(s) -
Lyrene P. M.,
Shands H. L.
Publication year - 1975
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/cropsci1975.0011183x001500030024x
Subject(s) - avena , biology , lemma (botany) , grain yield , cultivar , agronomy , poaceae
The relationships between groat protein percentage and several other agronomic traits were studied in F 2 and F 3 progenies of six Arena sativa ✕ A. sterilis crosses. Groat protein percentage was negatively correlated with groat plumpness, groat percentage, and grain yield. High groat protein was associated with several undesirable spikelet characteristics inherited from A. sterilis, including spikelet shattering, lemma awns and pubescence, and brown lemma color. The association between shattering spikelets and high groat protein percentage was especially pronounced. F 2 plants with shattering spikelets averaged 3.0% higher in groat protein than those with nonshattering spikelets. The comparable difference for F 3 lines was 3.8%. Development of useful cultivars from A. sativa ✕ A. sterilis progenies will require selection for groat plumpness, high grain yields, A. sativa spikelet type, and several other agronomic traits in addition to high groat protein percentage. The unfavorable associations noted, undoubtedly will reduce the rate of progress in increasing protein percentage.