The scattering of the sperm chromatin in the polarnucleus takes about 1 hour.
精核染色质在极核里分散的时间大约需用1小时。
2
Two polar nucleis fuse into the secondary nucleus, or they dontt fuse before the anther shed.
开花前 ，两极核融合成次生核 ，或不融合仍保留极核状态。
3
Polar nuclei The, usually two, haploid nuclei found midway along the EMBRYOSAC, forming a binucleate central cell. They may fuse to form the diploid definitive nucleus.