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首页> 外文期刊>Acta Horticulturae >Long-term effect of water deficit irrigation on cherry vigor and precocity.
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Long-term effect of water deficit irrigation on cherry vigor and precocity.

机译：缺水灌溉对樱桃活力和早熟的长期影响。

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摘要

Different post-harvest regulated deficit irrigation treatments were established in a young and vigorous commercial 'Bing' cherry (Prunus avium L.) orchard planted in dry shallow soil with drip irrigation. The treatments given over a three-year period were as follows: T1=100%, T2=75% and T3=50% of full ETc. The available water remaining percentage (%AWr) and midday stem water potential (SWP) were measured during the water-deficit period. During the three-year period average SWP was -0.68, -0.83 and -1.04 MPa while %AWr was 89.9, 71.7 and 41.4 for T1, T2 and T3 respectively. SWP was highly correlated with %AWr (r2=0.89). After three years trunk growth decreased by 6% (T2) and 10% (T3). Shoot length for T3 was 27% lower, flower bud density and yield efficiency were 85% and 57% higher when compared to T1. Seasonal shoot length was highly correlated with flower bud density on productive branches (r2=-0.76). Average fruit weight was not affected while double fruits were not substantially affected by treatments. An accurately adjusted post-harvest water deficit can be used to control vigor and promote early production of cherries, while saving significant amounts of water.
机译：在滴灌条件下在干燥的浅层土壤中种植的年轻，旺盛的“ Bing”樱桃（Prunus avium L.）果园中建立了不同的收获后调节亏缺灌溉处理方法。三年期间的治疗方法如下：T 1 = 100％，T 2 = 75％和T 3 = 50完整ETc的百分比。在缺水期测量可用水剩余百分比（％AWr）和午间茎水势（SWP）。在三年期间，T 1 ，T 2 和T <％的平均SWP为-0.68，-0.83和-1.04 MPa，％AWr为89.9、71.7和41.4。 sub> 3 。 SWP与％AWr高度相关（r 2 = 0.89）。三年后，树干增长分别下降了6％（T 2 ）和10％（T 3 ）。与T 1 相比，T 3 的芽长缩短了27％，花芽密度和产量效率分别提高了85％和57％。季节性芽长与生产枝上的花芽密度高度相关（r 2 =-0.76）。平均果实重量没有受到影响，而双重果实没有受到处理的实质影响。准确调节收获后的水分亏缺可用于控制活力并促进樱桃的早期生产，同时节省大量的水。

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