Re-examination of sibling cross-sterility in the ascidian, Ciona intestinalis: genetic background of the self-sterility
Importantly, these relationships were specific to female sterility (versus self-sterility
or sociosexuality, confirmed by partial correlations that controlled for overlap among the predictors).
in the Chinese Chestnut (Castaneamollissima).
Other chapters look at pollination, nectar, reproductive hormones, self-sterility
, and polyembryony.
FC720 is an O-type germplasm with 73% green (rr) hypocotyls (26 plants counted) and is segregating for monogermity (mm) and self-sterility
A: There are two possible causes of your damson problem: frost on the blossoms or self-sterility
. The second is more likely and means, as you surmise, that a second tree is needed for pollination.
(1975) selected for self-fertility and self-sterility
in alfalfa, but no significant differences were obtained after two generations.
FC301 is an O-type germplasm segregating for self-sterility
([S.sup.S]), hypocotyl color (94% R-), and monogerm (90% mm in seed harvested from monogerm plants).
savignyi demonstrate that 42% of the animals are self-fertile, and less than 10% of the individuals in the Santa Barbara population exhibited complete self-sterility
. In contrast, the only previous study of C.
FC201 is an O-type germplasm segregating for self-sterility
(Ss), hypocotyl color (50% rr) and monogermity (90% mm in seed harvested from monogerm plants).
The six plants were selected on the basis of seed production potential, strong self-sterility
, growth form (turf type), and winter hardiness.
Depending upon the segregation for self-sterility
, the [F.sub.2] would have been derived by either selfing or sib mating.