不同生育阶段水分亏缺对河套蜜瓜产量和品质的影响分析

开展蜜瓜起垄覆膜栽培条件下的田间沟灌试验,设置8个处理,充分灌溉作为参照处理,水分亏缺设置于蜜瓜的四叶期和开花期,亏缺程度为轻度、中度和重度,研究不同生育期水分亏缺和亏缺程度对蜜瓜产量和果实品质的影响。结果表明:蜜瓜产量与灌水量之间呈较显著相关关系,不同生育期水分亏缺处理条件下,蜜瓜生长发育早期水分亏缺不利于蜜瓜后期的生长,后期灌水的补偿效应不明显,蜜瓜开花期轻度水分亏缺更有利蜜瓜产量和果实品质的提高。

Effects of Water Deficit at Different Growth Stages on Yield and Fruit Quality of Melon

Furrow irrigation experiment of melon under the condition of ridging and mulching cultivation is carried out in this paper.In the experiment, eight treatments are set, full irrigation treatment is taken as reference treatment, water deficit at leaf stage and flowering stage is respectively conducted, and the deficit levels include mild, moderate and severe degree.The effects of different water deficit levels on yield and fruit quality of melon are studied.The results indicate that there is a significant correlation between yield and irrigation amount;under the condition of various water deficit levels at different growth stages.Water deficit at the early growth period of melon is not conducive to the late growth of melon.The compensative effect of late irrigation is not obvious.Mild water deficit at flowering stage of melon is more beneficial to the improvement of yield and fruit quality of melon.