自控温室黄瓜生长发育动态及基于有效积温的发育模型研究

Study on cucumber growth and development in automatic control glasshouse and its development model based on effective accumulated temperature

观测并分析了自动控制型玻璃联栋温室内有效积温以及营养液栽培黄瓜全生育期内的株高、节数、叶片数、植株总干物质量以及叶、茎、根、果实等不同器官的干物重等主要生长发育性状,结果表明,全生育期内黄瓜主要生育特性如株高、节数、干物质积累与有效积温间的相关性均达到极显著。根据完成某一生育阶段的累积有效积温值建立了基于有效积温的黄瓜发育速率模型,并对该模型进行了初步验证,证实通过该模型,用温室环境温度可预测黄瓜发育进程。

The effective accumulated temperature in self-controlled greenhouse, the main growth and development characters of soilless culture cucumber in different developmental stages such as plant height, node number and leaf number and the dry matter weights of plant and its leaves, stems, roots and fruits were measured and analyzed. The results showed that the correlations of effective accumulated temperature to the growth and development characters in different developmental stages such as plant height, node number and dry matter accumulation of cucumber were significant. According to the above correlations, a developmental rate model of cucumber based on effective accumulated temperature was set up, and the preliminary verification of the model indicated that environmental temperature could be used to predict cucumber development process according to the model.