| The bio-intensive approach to small-scale household food production |
|Seed and seedling management|
Seeds come from flowers. Plants have to be pollinated in order to produce seeds. The pollen, the fertilizing powder which comes from the male part of the flower or anther, is brought to the female part of the flower -- the stigma or pistil.
In cross-pollination, the pollen that will fertilize the plant will come from another plant. The plant cannot produce seeds if only one plant is planted because there will be no source of pollen. Examples of cross-pollinated plants are watermelon, melon, cucumber, squash, bottle gourd, sponge gourd, bitter gourd, pechay, mustard, radish, onion, carrot.
Plants may either be self-pollinated or cross-pollinated. In self-pollination, the plant can produce seeds without another plant. The pollen comes from the same flower or from another flower from the same plant. Examples of self-pollinated plants are tomato, hyacinth bean, soybean, lima bean, mungbean, Baguio bean, pea, winged bean, yardlong bean, cowpea, water hyacinth, lettuce.
Sometimes mixed-pollination occurs. A single plant may either self-pollinate or cross-pollinate, depending on the environmental conditions. Examples of mixed-pollinated plants are eggplant, bell pepper, chili, pigeon pea, cauliflower, amaranth, ladyfinger.