Allogamy or cross-fertilization is the fertilization of an ovum from one individual with the spermatozoa of another. By contrast, autogamy is the term used for self-fertilization. Cross-pollination is not essential, but does improve the number of fruit that form on apricots, European plums/prunes, tart cherries, peaches and nectarines. But because I let something else collide with it. That’s what I’ve come to call cross-pollination. The shift didn’t come from more knowledge. It came from letting other worlds bleed into it. It’s called cross-pollination. They fly from one flower to another, or one tree to the next, picking up bits of one plant and carrying it to the other. The plant on the receiving end of this pollination... CrossPollination by Brush Understanding CrossPollination Techniques for Flowers. Explore the techniques and benefits of crosspollination in flowers. Crosspollination is essentially the combination of things to create a better solution–essentially, mixing. To romanticize it; alchemy. Cross-Pollination: Preventing or Promoting. To prevent cross-pollination of a parthenocarpic tree, you can cover the tree with bee netting to exclude pollinators. Can the pollen of one type of citrus eg a grapefruit pollinate another type of citrus eg an orange and effect the flavour of the fruit. The answer is No, Unless you eat the seed. Self-Pollination vs. Cross-Pollination.Cross-pollination involves the transfer of pollen from one male plant to another female plant. 3. Recurrent selection, synthetic varieties, and multiline varieties are mainly used to improve cross-pollinated crops where pollination control is difficult.