germination tube 萌发管
germination in culturing tube 试管萌发
pollen germination and tube growth 花粉萌发和花粉管伸长
The variation of pollen vigor of Iris in the different storage conditions was studied and the germination and the growth of pollen tube in different temperatures were also studied.
主要研究鸢尾在不同贮藏条件下保存的花粉活力的变化，以及温度对花粉管萌发和生长的影响。
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.
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。
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