• 基本释义

  • 词形变化

1.However,only did a few pollen germinate in inter-specific hybridization between Cerasus fruticosa and C. avian and many pollen tubes are crosswise on stigma and couldn"t penetrated into style.Although a few pollen tubes entered,they couldn"t continue to grow due to accumulation of callosity in pollen tubes.In view of above-mentioned results,the irregular growth of pollen was the main reason to cause the incompatibility of distant hybridization between Cerasus fruticosa and C.avium.
而草原樱桃与欧洲甜樱桃种间杂交授粉后花粉在柱头上虽少量萌发，但花粉管在柱头上横向生长，或盘绕，扭曲不能伸入花柱；个别进入花柱的花粉管先端因沉积胼胝质而中途停止伸长未能进入子房到达胚珠，从而说明这种杂交授粉后花粉管的不正常行为是导致草原樱桃与欧洲甜樱桃远缘杂交不亲和的主要原因。收藏指正
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