柑桔果实微生长规律及其在温室节水灌溉控制中的应用

Micro-growth Pattern of Orange Fruit arid Its Application to Water-saving Irrigation Control in Greenhouse

果实主要因水分含量变化而引起的体积微变化包括日收缩和日净增长两个过程,果实水分含量日变化过程受到诸多环境因子的综合影响,其中土壤水分起主导作用。树体缺水时果实净增长量主要因水分向其它器官转运过多而受到影响,相比较而言,依据果实微生长规律控制灌水,不仅能节水,同时可使柑桔生长速率明显提高。

Daily micro-change of fruit volume due to change of water content consistcs of processes of daily shrinkage and daily micro-growth of fruits. Water content daily variation course in fruit is affected comprehensively by many environmental factors, where soil water content takes the leading role. When trees lacking water net growth of orange fruits will be interrupted because of much reverse flow of water from fruit to other tissue. However, compared with that well irrigated daily, fruit growth rate of trees irrigated according to micro-growth pattern of orange fruit increases conspicuously besides water-saving.