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Heading Dates in Six 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/cropsci1975.0011183x001500030023x
Subject(s) - biology , avena , vernalization , interspecific competition , agronomy , selection (genetic algorithm) , botany , horticulture , photoperiodism , artificial intelligence , computer science
Heading dates were studied in six Avena sativa L. × A. sterilis L. crosses. The A. sterilis parents (CI 8077 and PI 295932) were later than the five A. sativa parents by 2 to 30 days. F 1 plants and many F 3 lines were earlier than the A. sativa parents. The earliness of interspecific progenies appeared to result from earliness factors inherited from A. sterilis parents; factors which were not expressed in A. sterilis due to a vernalization requirement. The vernalization requirement was absent in F1 progenies, apparently because of genes from A. sativa . Successful selection for early maturity in A. sativa × A. sterilis requires elimination of progeny with a vernal. ization requirement. Progeny tests of F 3 lines indicated that earliness was easy to stabilize by selection.