本文还讨论了成熟花粉粒败育时期和败育形态的划分。
Division of mature pollens abortive stage and shape were also discussed in this paper.
花粉粒败育形态多种多样，有不规则形，梭形，圆形等。
Abortive shapes of pollen grains were in varied forms, such as irregular, round and spindle etc.
花粉粒的外部形态结构，是影响该螨能否取食的重要因素之一。
Surface structure of the pollen grains was found to be one of the major factors affecting the feeding behavior of the predator.
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