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众所周知,主要禾谷类作物的花粉在自然条件下迅速丧失其活力。依作物种类不同,花粉有效期为几分钟到一天。许多研究者把禾谷类作物花粉的迅速失活,归咎于花粉粒的干
It is well known that the pollen of major cereal crops rapidly loses its vigor under natural conditions. Depending on the type of crop, pollen is valid for a few minutes to a day. Many researchers attributed the rapid deactivation of cereal crop pollen to pollen grains