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Range of Hybridization with Bothriochloa intermedia (R. Br.) A. Camus 1
Author(s) -
Harlan Jack R.,
Chheda H. R.,
Richardson W. L.
Publication year - 1962
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/cropsci1962.0011183x000200060011x
Subject(s) - citation , library science , biology , computer science
DURING the past decade the Oklahoma Agricultural Experiment Station has conducted intensive biosystematic investigations on the generic section Bothriochloininae to provide information for a plant breeding program in this group of grasses (3, 10, 11, 12). The portion of the section of particular interest is represented by the genera Bothriochloa, Dichanthium, and Capillipedium. These three genera comprise a large, extremely polymorphic agamic complex in which the diploid forms are generally sexual, the tetraploid forms are largely but not completely apomictic, and the higher ploidy levels are highly to completely apomictic. Exceptions to this generalization are the New World forms which may be completely sexual although reaching as high as an 18x level of ploidy (2n = 180).