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以18年生的“宁冠”和“新红星”苹果品种为试材,以大田漫灌为对照,研究了沟灌、交替灌溉2种不同灌溉方式对苹果树体生长、叶片生理及光合特性的影响,以期提高苹果水分利用效率、产量和品质。结果表明:交替控灌不但节约时间,并且显著的节省了水资源;在不影响营养生长的情况下,促进了叶绿素的形成,在提高光合速率的同时使蒸腾速率显著下降,最终显著提高了叶片水分利用效率。
Taking 18-year-old “Ningguang” and “Xinhongxing” apple cultivars as test materials and field flood irrigation as control, the effects of furrow irrigation and alternate irrigation on apple tree growth, leaf physiology and photosynthesis Characteristics of the impact, with a view to improve apple water use efficiency, yield and quality. The results showed that alternate irrigation control not only saved time, but also significantly saved water resources. Without affecting the growth of nutrition, it promoted the formation of chlorophyll, reduced the transpiration rate while increasing photosynthetic rate, and finally significantly increased the growth of leaves Water use efficiency.