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一朵棉花花朵约有近十万个花粉。一个花粉粒为一个单细胞,直径约120微米,肉眼细看能分辨出来。花粉呈球形,表面有细刺,易于附着雌蕊的柱头上,也易被昆虫粘走。昆虫传送花粉是造成棉花天然杂交的主要原因。当早上花朵开始开放,花药逐渐破裂,成熟花粉
About a hundred thousand pollen cotton flowers. A pollen grain is a single cell, about 120 microns in diameter, visible from the naked eye. Pollen was spherical, surface thin thorns, easy to attach pistil stigma, but also easy to stick away by insects. Insect-transmitted pollen is the main cause of natural cotton hybrids. When the flowers begin to bloom in the morning, the anthers gradually burst into mature pollen