板栗空蒲是指刺苞内无果实,即群众所说的“庇子”。据调查,我省板栗的空蒲现象较普遍,有的栗林空蒲率高达40％左右,是我省板栗产量不高的主要原因之一。 板栗空蒲的主要原因有: 1.品种单纯。板栗为雌雄同株异花授粉的果树,因雄花开放先于雌花,往往由于品种单一,造成授粉不足而降低着果率。如长 Chestnut empty Po refers to no fruit in the thorn, that is, the masses said “shelter.” According to the survey, the empty chestnut Pu phenomenon more common in the province, and some Liulin empty rate of up to 40%, is one of the main reasons for the low yield of chestnut in our province. Chestnut empty Pu main reasons are: 1. Varieties simple. Chestnut is the hermaphrodite flower pollination of fruit trees, because male flowers open before the female flowers, often due to a single species, resulting in inadequate pollination and reduce fruit rate. As long