Premium
Effects of Self‐Compatibility on Chance Crossing in Medicago sativa L. 1
Author(s) -
Gartner Alvaro,
Davis Ralph L.
Publication year - 1966
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/cropsci1966.0011183x000600010019x
Subject(s) - point of delivery , selfing , emasculation , biology , ovule , medicago sativa , horticulture , ovary , botany , pedicel , pollen , genetics , pollination , population , demography , sociology
Nineteen M. sativa clones were evaluated for percent pod set, seeds/pod, seeds/100 flowers tripped and ovules/‐ovary. Pod set was significantly correlated with seeds/pod (r = +0.96). Ovules/ovary was not significantly correlated with either seeds/pod or pod set. Eight of the 19 clones ranging in pod set from 6.9 to 91.2% averaged over 2 self‐pollinations were selected to study the effects of self‐incompatibility on chance crossing without emasculation. These 8 clones were used as females and hand crossed with and without emasculation to 2 different yellow‐flowered clones as males. When the emasculated progenies were compared to the unemasculated progenies, only 1 of the 16 comparisons was significantly different with either the "t" test or X 2 of the frequency distribution. The data suggested no relationship between percent self compatibility and selfing when hand crosses were made without emasculation.