where, [W.sub.1] is the phenotypic value of self-fertilized
offspring and [W.sub.0] is the phenotypic value of mass-mated offspring.
From the 21 839 self-fertilized
grains obtained from these spikes, there were 7807 blue grains, which was 35.7% of the total.
Plants at the BK site set significantly more self-fertilized
fruits in 1994 (9.1% [+ or -] 1.5%) than plants at HT (3.2% [+ or -] 1.0%) (t = 3.67, P [less than] 0.001, df = 1, N = 81).
Egg number per clutch varies considerably between the two development modes, and preliminary results indicated that eggs per clutch also varied among mating types (unfertilized, self-fertilized
, or paired).
Because host plants produce only obligately self-fertilized
cleistogamous flowers they are reproductively isolated from uninfected plants.
intestinalis from the Gulf of Naples were self-fertile, while in the rest (85%), less than 10% of the eggs were self-fertilized
. In a study on a Japanese population in the Uranouchi Inlet, 21% of the animals could self-fertilize, while 71% could fertilize less than 10% of self-eggs (Kawamura et al., 1987).
From these measurements, we deduced a cross-fertilization effect (R) for each trait as the relative increase of cross-fertilized kernels compared with self-fertilized
The two species of Corella show a striking contrast in the survival of self-fertilized
offspring in the laboratory.
Mean and F-statistics for female, male, female x male effects on weight of cross-fertilized (yellow) kernels, weight of self-fertilized
(white) kernels, and cross-fertilization advantage criteria in 1993, 1994, and 1995.
progeny of Syn91-3 fit a 3:1 ratio of heterozygous to homozygous individuals (Table 4).
By using aphallic individuals of the hermaphrodite freshwater snail Bulinus truncatus, we can estimate the effect of grouping self-fertilized
for isolated and grouped snails.
Fertilization of D-23 plants by the pollen of the donor line D-27 was easily recognizable through the heterozygote pattern of seeds compared with the homozygote pattern of self-fertilized