降水和灌排水对甜椒产量的影响

The Influence of Precipitaton and irrigation on the yield of Sweet Chilli

以世界冠军和麻辣三道筋等品种为试材,通过5年品种对比试验,研究了降水和灌排水对田间生态环境、甜椒生育、抗性和产量的影响,以及调节生态环境的关键时期。试验结果证明:均匀降水和及时灌排水能改善甜椒田间的综合生态环境;旺盛发棵期和恢复生长期是调节生态环境的关键时期;品种特性和当年田间生态环境决定了当年种体长势和抗性,而病毒病等病害和落叶轻重取决于秧体的抗性,甜椒产量分布和总产量高低受这些因素的共同影响。

The chilli varieties of world champion, Hot--3nerves etc. were used as material in the 5--year experiment of variety comparison. The in- fluence of precipitation,irrigation and drainage on the field environment and the growth,resistance and yield of chilli was studied and the critical period to regulate the ecological environment was determined. The results showed that the well-distributed precipitation and timely drainage and irrigation can improve the comprehensive environment of chilli field. The flourishing stage and the growth restozation stage are the critical periods to regulate environment. The variety characteristics and the yearly field environment determined the growth vigour and disease resi- stance of the plant. All these factors comprehensively influence the yield distribution and the total yield of chilli.