论文部分内容阅读
新疆厚皮甜瓜受精类型为有丝分裂前型。胚乳为细胞型胚乳。授粉后半小时,可以看到花粉在柱头上萌芽,2小时后通过珠孔进入胚囊,8~9小时开始释放物质,24小时后精子开始进入次生核和卵细胞,48小时后大部分胚珠完成双受精过程;次生核核仁合并、产生于授粉24小时以后。受精作用在16℃~37℃条件下都能进行,适当高温能加快受精过程,但二者并非直线相关;蕾期授粉对受精进程有一定影响,但最终效果与花期无异。
Xinjiang muskmelon fertilization type pre mitotic type. Endosperm is a cell type endosperm. Half an hour after pollination, pollen germinated on the stigma and entered the embryo sac 2 hours later, releasing the substance 8-9 hours later. After 24 hours the spermatozoa began to enter the nucleus and ovum and most of the ovules 48 hours later Complete the double fertilization process; secondary nuclear nucleolus merged, resulting in pollination after 24 hours. Fertilization can be carried out under the conditions of 16 ℃ ~ 37 ℃, the appropriate high temperature can speed up the fertilization process, but the two are not linear; Bud stage pollination has a certain impact on the fertilization process, but the final effect is no different with the flowering.