在液滴培养盐胁迫条件下，棉花花粉粒萌发的百分率是反映其耐盐性的可靠指标，而花粉管的长度不能反映棉花的耐盐性。
The pollen germination percentages of the same 8 cultivars by sitting drop culture were also proved to be reliable indexes of salt tolerance, but pollen-tube growth were not.
四倍体刺槐自身花粉粒的形状结构之间表现出丰富的变异：体积与形状多样，萌发孔沟的数量及位置不固定，外壁表面的纹饰特征彼此不同等等；
There were remarkable variations in the shape, volume, location and number of bourgeon -hole channels and veins on surface of pollen among pollens of TRP.
结果表明：所研究的植物花粉粒在大小、形态、萌发器官和外壁纹饰上有明显差异；
The results showed that there were obvious differences among the pollen grains in terms of pollen size, shape, colour and surface structures.
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