Spontaneous pollination

Cross-pollination is the main pattern , but the highest ripening rate was spontaneous pollination of Polygonum capitatum Buch . - Ham .

异花授粉为头花蓼的主要授粉方式，其中自然授粉的结实率最高。

Spontaneous pollination and self-pollination percentages of fertile fruit of 8 apricot varieties are lower , which are respectively between 0.4 ~ 13.4 % and 0.0 ~ 7.1 % ;

8个品种自然授粉和自花授粉结实率均较低，分别在0.4~13.4%之间和0.0~7.1%之间；

Three ways of pollination , including non emasculation and spontaneous pollination , emasculation and spontaneous pollination , and emasculation and artificial pollination were adopted in order to verify the effects to bar gene transfer under the different pollination conditions .

采用不去雄、天然授粉，去雄、天然授粉和去雄、人工授粉3种授粉方式以鉴定不同授粉方式对Bar基因转移的影响；

Results indicated that the depression of inbreeding in B.chinensis was very serious , the agronomic traits and yield in bud pollination lines were lower than that in spontaneous pollination and crosses between sister lines with significant or very significant level .

结果表明南方白菜型油菜自交严重衰退、连续自交四代，其主要农艺性状与开放授粉或与姐妹系间的后代差异达显著或极显著水平。

Though the ratios of fruit set are not same , the quality of seeds got from allogamy is better . Cross-pollination is the main pattern , but the highest ripening rate was spontaneous pollination of Polygonum capitatum Buch . - Ham .

不同授粉方式虽在座果率上无明显差异，但异花授粉可明显提高天麻种子的质量。异花授粉为头花蓼的主要授粉方式，其中自然授粉的结实率最高。