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1·A combination of dichogamy and herkogamy in hermaphroditic plants is an effective mechanism to encourage outcrossing.

雌雄异熟和雌雄异位共同存在于两性植物中是一种有效促进异交的机制。

2·Spraying GA3 reasonable can be increased to improve the height, outcrossing rate and yield.

合理喷施赤霉素可以增加株高、提高母本异交结实率和产量。

3·It has good outcrossing characteristics and early flowering time with its outcrossing rate over 50%.

异交性状佳，花时早，异交结实率50 %以上。

4·No significant differences were observed for outcrossing rates of the same combinations between two years.

相同双亲组合的异交率在相邻两年度间差异不显著，并存在着显著的正相关。

5·A combination of dichogamy and herkogamy in hermaphroditic plants is an effective mechanism to encourage outcrossing and avoid selfing.

雌雄异熟和异型花在一些被子植物中的共同存在被认为是一种有效避免两性花植物自交并促进异交的机制。

6·X. Lin has great change in the same population, and the outcrossing rate difference of the same enzyme locus is also high in the different population.

荷叶铁线蕨不同位点的异交率在同一居群内的变化很大，而不同居群间的同一酶位点的异交率差异也是较大的。

7·The sterile plant with multiple stigmas had a high outcrossing percentage of seed setting because its multiple and long stigmas enlarged the area of pollination.

多柱头不育株，由于柱头多而长，接受花粉面积大，异交结实率高。

8·Secondary pollen presentation has been described as a reproductive strategy that enhances the efficiency and accuracy of pollen exportation and pollen reception, thereby promoting outcrossing.

次级花粉呈现是植物提高花粉输出和接受的效率与准确性以及促进异交的一种繁殖策略。