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Evidence of Cytoplasmic Male Sterility in Alfalfa 1
Author(s) -
Pedersen M. W.,
Stucker R. E.
Publication year - 1969
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/cropsci1969.0011183x000900060029x
Subject(s) - biology , sterility , pollen , hybrid seed , cytoplasmic male sterility , reciprocal cross , pollination , medicago sativa , botany , heterosis , crop , agronomy , hybrid
A new source of male sterility found in ‘DuPuits’ alfalfa ( Medicago sativa L.) was classified as cytoplasmicgenic on the basis of male‐sterile F 1 's when the male‐sterile plants were crossed with either of two pollen‐fertile plants, a positive correlation (P<.O1) between sterility in the F 1 and BC 1 progenies, and a reciprocal difference in a cross where the reciprocal was identified with a recessive marker. The mechanics of hybrid seed production appear workable, but major developmental problems include identification of lines with superior combining ability and insect and disease resistance; and pollination of the seed Crop.