Flowers of all species under study were selfed to determine the time taken by pollen tubes to reach the ovules. |
The hybrid plants, used as the female parents, were back-crossed with H. polyrhizus and S. megalanthus, crossed with the diploid H. undatus, or selfed. |
There was variability among self-fertile plants in their propensity to mature selfed fruits, but, on the whole, selfed fruit-set was very low compared to outcrossed fruit-set. |
Inflorescences of flowering plants were selfed and isolated with bags. |
From each of the heterozygotes for nonlethal chromosomes, 40 selfed progeny were obtained. |
Despite the fact that only a small number of selfed fruits were produced on self-fertile plants in our study, variation in self-fertility was evident. |