马铃薯花粉采收后在室温下保存,经过几天就丧失生活力,使杂交产生一定的困难。马铃薯品种通过开花期的时间不一致,造成特殊的生物学障碍,不能进行所需要的杂交,特别是早熟和晚熟品种之间杂交。对于最后这种情况,如果用晚熟品种作为授粉品种,那么它的花粉应当在经过11个月后到早熟品种开花时,即到第二年仍然是有育性的。在自然条件下, Potato pollen collected at room temperature after harvest, after a few days on the loss of viability, so that hybrids have some difficulties. Potato varieties do not pass the same flowering time, causing special biological barriers to the desired hybridization, especially the hybridization between the precocious and late-maturing varieties. In the latter case, if a late-maturing variety is used as a pollinating variety, its pollen should remain fertile by the second year when the flowering of the precocious variety occurs after 11 months. Under natural conditions,