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首页> 外文期刊>Acta Horticulturae >Effects of exogenous abscisic acid (ABA) applications on water use and cropping of 'Thompson Seedless' grapevines
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Effects of exogenous abscisic acid (ABA) applications on water use and cropping of 'Thompson Seedless' grapevines

机译：外源性脱盐酸（ABA）应用对“汤普森无籽”葡萄树用作和种植的影响

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摘要

An experiment was conducted in 2011 to determine whether weekly applications of abscisic acid (ABA; ProTone, Valent Biosciences, Libertyville, IL) could mitigate water stress in deficit irrigated 'Thompson Seedless' grapevines [Vitis vinifera L.). Thevineyard was divided into four main plots, each containing two vine rows assigned to different irrigation treatments; applied water at 70 or 35% crop evapotranspiration (ETC). Vine rows were further divided into four-vine subplots that were treated withsolutions containing no ABA, or 100, 300, or 1000 mg L 1 ABA. Irrigation treatments commenced on July 5, and vines were first treated with ABA on July 6. The last ABA treatment was applied on August 31 and harvest occurred on September 7. Midday leaf water potential steadily declined from about July 14 through harvest, but the water potential of vines subjected to the 35% ETC treatment declined more rapidly than that for vines irrigated at 70% ETC. Most ABA treatments increased water potential of vinessubjected to 35% ETC, but only the 1000 mg L1 ABA treatment routinely increased water potential of vines irrigated at 70% ETC. Transpiration of vines in a weighing lysimeter was reduced by 50 to 60% in the days following application of 1000 mg L1 ABA, and 30% over the course of a week. Soil water depletion in the 35% ETC plots was not affected by ABA treatments, but vines treated with 1000 ppm ABA depleted 29% less soil water than the non-treated vines in the 75% ETC plots. However, when applied wateris added to the water budget, ABA-treated vines used only 9% less water than non-treated vines. Treatments had little or no effect on grape yield components or composition other than the 35% ETC treatment hastening maturity.
机译：在2011年进行了一个实验，以确定脱落酸的每周应用吗（ABA;质子，价值的生物科学，Libertyville，IL）可以减轻缺陷灌溉'汤普森无籽'葡萄园[血管vinifera l]的水分压力。将vineyard分为四个主图，每个地块包含两个分配给不同灌溉治疗的藤蔓行;施加水70或35％作物蒸散（ETC）。藤条进一步分为四个藤子沉积，被含有ABA或100,300或1000mg L 1 ABA的溶解处理。灌溉治疗于7月5日开始，葡萄藤于7月6日首先用ABA处理。最后一次ABA治疗于8月31日应用，并于9月7日发生了收获。中午叶水潜力从大约14年从收获稳步下降，但水受35％等葡萄藤的潜力比70％等灌溉的葡萄藤迅速下降。大多数ABA治疗增加了Vinessubjected的水势，只有1000mg L1 ABA治疗，常规增加了70％等葡萄藤的水势。在1000mg L1 ABA施用1000mg L1 ABA后的日子中，葡萄藤中葡萄藤的蒸腾度降低了50％至60％，在一周的过程中30％。在35％的地块中的土壤水耗水不受ABA治疗的影响，但葡萄葡萄含量超过75％ETC图中的未处理葡萄含量减少29％。然而，当施加水中加入到水预算时，ABA治疗的葡萄藤仅使用比未处理的葡萄葡萄含量减少9％。治疗对除35％ETC处理以外的35％ETC处理以外的葡萄产量组分或组合物没有影响。

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