论文部分内容阅读
日光温室一大茬黄瓜种植面积比例最大,产量和经济效益相对较高。由于一大茬黄瓜生产,部分时间在冬季低温寡照时期,对黄瓜的生长、发育都很不利。探讨不同生育期最佳形态指标,掌握植株合理的生长进程,对指导生产具有十分重要的意义。我们根据对河南省各地考察、研究和驻点调查,参照大量高产典型各阶段生育情况,初步确定(以密刺系统为例)越冬一大茬黄瓜各生育期最佳形态指标。 一、发芽期直观最佳形态指标
Solar greenhouse a large number of cucumber cultivation area of the largest proportion of yield and economic benefits are relatively high. Due to a large crop of cucumber production, part of the time in the winter period of low temperature, the cucumber growth and development are very negative. To explore the best morphological indexes at different growth stages and to master the reasonable growth process of the plants is of great significance to guide the production. Based on the investigation, research and spot investigation in Henan Province, we refer to the fertility situation of a large number of typical high-yielding stages. The best morphological indexes of each of the cucumber growing areas during the winter are preliminarily determined. First, the best form of visual indicators of germination