- Distal flowers are often smaller and produce fewer or smaller ovules, seeds and fruits, but they may have higher pollen production.
- Relative to self-pollination, outcross pollination results in greater proportion of flowers setting fruit, and greater proportion of ovules yielding seeds per fruit.
- The number of pollen tubes and ovules in the ovaries of each of six dissected pistils from each cross is shown.
- It is well known that most flowering plants produce more ovules than the number of seeds they mature.
- Once the pollen has fertilized the egg cell contained within the ovule, the ovule develops into a seed, and the ovary of the enclosing carpel begins to enlarge and ripen, forming the fruit.