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Contamination in Denta Sweetclover During Successive Generations of Seed Increase 1
Author(s) -
Gorz H. J.,
Haskins F. A.
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/cropsci1969.0011183x000900030038x
Subject(s) - biology , contamination , melilotus , horticulture , botany , agronomy , ecology
Contamination levels observed in the breeder, foundation, and certified seed generations of ‘Denta’ sweetclover ( Melilotus alba Desr.) were 0.71, 1.69, and 3.62%, respectively, as measured by the frequency of plants high in content of ο‐hydroxycinnamic acid. Based on a sample of plants tested simultaneously for ο‐hydroxycinnamic acid content and β‐glucosidase activity, a small but consistent decrease in the frequency of cu plants occurred with succeeding seed generations, while shifts in the frequency of b plants were not consistent in magnitude or direction. Contamination through cross‐pollination with CuCuBB plants may be the major factor responsible for the observed decreases in the frequency of cu plants.