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在干旱条件下,以成龄扁桃为试材,进行了一定量水(100mm±),在不同时期(5月底、7月中旬和9月初)灌溉对提高其抗旱性和生长发育影响的研究。结果表明,早期灌水处理,生长季中叶片水势低,树冠温度高,水势日变化大,果实性状表现差,单位果枝上花量少,座果率低,尚不及全年不灌者;中期灌溉处理上述各指标优于不灌和早期灌水处理;以中、晚期各灌一次(总水量150mm±)处理表现最好,对树体抗旱性的提高和生长发育有利。
Under the condition of drought, Aging Almond was used as test material to study the effect of irrigation on the drought resistance and growth of a certain amount of water (100mm ±) at different periods (the end of May, the middle of July and the beginning of September). The results showed that in the early irrigation period, the leaf water potential was low, the canopy temperature was high, the water potential had a great diurnal variation, the fruit performance was poor, the fruiting branch was less and the fruit rate was low, which was less than that in the whole year. The above indexes were better than those without irrigating and early irrigating treatments. The treatment with middle and late irrigating time (total water amount 150 mm ±) was the best, which was beneficial to the improvement of drought resistance and growth of trees.