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Effects of Clones, Generation of Inbreeding and Years on Self‐Fertility in Alfalfa 1
Author(s) -
Melton Bill
Publication year - 1970
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/cropsci1970.0011183x001000050013x
Subject(s) - biology , inbreeding , fertility , medicago sativa , clone (java method) , point of delivery , agronomy , botany , genetics , population , demography , gene , sociology
Five selected clones of alfalfa, Medicago sativa L., were evaluated for self‐fertility over a period of 9 years. Differences among clones and clone ✕ years interactions were significant but the effect of years on the average self‐fertility of the group was not significant. Correlations of self‐fertility of the clones among years were highly significant. Inbreeding effects on self‐fertility varied between clones. C‐84, the most self‐fertile clone in the group, was significantly reduced in self‐fertility in the S 1 generation, whereas the other clones were not affected. Variations in self‐fertility were noted among plants within all inbred generations. The number of self‐sterile plants tended to increase as inbreeding progressed. Pods per flower tripped, seeds per pod and seed per flower tripped were equally effective as measurements of self‐fertility.