论文部分内容阅读
黄瓜雌花未开放或开放后子房不膨大,迅速萎缩变黄脱落,称为化瓜。温室大棚中出现的黄瓜化瓜现象是由环境条件、栽培季节及栽培品种等多方面因素引起的,现简述如下:一、造成化瓜的原因1.花芽分化受阻引起的化瓜,育苗期温度经常低于10℃以下的低温,可能导致花芽分化不正常而化瓜;温度过高,水、肥过大,秧苗徒长时花芽得不到充足的养分,分化受阻易引起化瓜;干旱缺水、光照不足时也会造成花芽分化不良,引起化
Cucumber female flowers are not open or open after the ovary is not swollen, rapidly shrinking yellow off, known as melon. Cucumbers appear in greenhouse greenhouse melon phenomenon is caused by many factors such as environmental conditions, cultivation season and cultivars, are summarized as follows: First, the causes of melon 1. Flower buds blocked caused by melon, nursery period The temperature is often lower than 10 ℃ below the low temperature, may lead to abnormal flower bud differentiation and melon; temperature is too high, water, fertilizer is too large, when the seedlings grow long buds not enough nutrients, blocked differentiation easily lead to melon; drought Water, poor lighting can also cause poor flower bud differentiation, caused by