Means of Pollination:
1. Wind: These species require the largest isolation distance (pollen can travel for miles depending on the strength of the wind and the presence or absence of barriers). Varieties that are wind pollinated should be planted in dense blocks to ensure total pollination. Wind pollinated species can either be self- pollinated (wheat or oats) or cross-pollinated (corn or beets).
2. Insects: These plants have flowers that encourage insects to travel from flower to flower. For plants that prefer insects as pollinators, it is important to find out which pollinators (flies, bees, etc.) that the plant prefers. Insect pollinated species require less isolation distance than the wind pollinated species but still require up to a mile of separation from same species varieties to ensure no crossing within species.
3. Self-pollinating species: Self-pollinated plants (for example: beans, tomatoes, and potatoes) have flowers that are evolved to self-pollinate with no assistance. Although self-pollinating species are designed to reduce/eliminate cross pollination within species, crossing can occur. For example, certain heirloom varieties of tomato have long, protruding styles which can encourage cross-pollination. If you attempt to produce seed from these varieties, you must treat them as a cross- pollinating species and isolate them from other varieties in their species.
Means of Pollination:1. Wind: These species require the largest isolation distance (pollen can travel for miles depending on the strength of the wind and the presence or absence of barriers). Varieties that are wind pollinated should be planted in dense blocks to ensure total pollination. Wind pollinated species can either be self- pollinated (wheat or oats) or cross-pollinated (corn or beets).2. Insects: These plants have flowers that encourage insects to travel from flower to flower. For plants that prefer insects as pollinators, it is important to find out which pollinators (flies, bees, etc.) that the plant prefers. Insect pollinated species require less isolation distance than the wind pollinated species but still require up to a mile of separation from same species varieties to ensure no crossing within species.3. Self-pollinating species: Self-pollinated plants (for example: beans, tomatoes, and potatoes) have flowers that are evolved to self-pollinate with no assistance. Although self-pollinating species are designed to reduce/eliminate cross pollination within species, crossing can occur. For example, certain heirloom varieties of tomato have long, protruding styles which can encourage cross-pollination. If you attempt to produce seed from these varieties, you must treat them as a cross- pollinating species and isolate them from other varieties in their species.
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