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首页> 外文期刊>Small Fruits Review >Comparison of fungicide, leaf removal and gibberellic acid on development of grape clusters and botrytis bunch rot of 'Vienoles' and 'Pinot Gris'
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Comparison of fungicide, leaf removal and gibberellic acid on development of grape clusters and botrytis bunch rot of 'Vienoles' and 'Pinot Gris'

机译：比较杀菌剂，脱叶剂和赤霉素对'Vienoles'和'Pinot Gris'葡萄簇和葡萄孢束腐烂发展的影响

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摘要

'Vignoles' and 'Pinot Gris' grapes, which have compact clusters, were treated with iprodione (Rovral) fungicide, selective leaf removal and gibberellic acid (GA_3) over several years to determine the influence on Botrytis hunch rot infection, cluster development, yield and quality. Treatment of individual clusters with GA_3 tended to increase cluster weight and length, and decrease berries with rot, but differences were not always significant. The fungicide iprodione provided good control of Botrytis bunch rot and leaf removal reduced incidence approximately 50 percent of that achieved by the fungicide. Most years yield was not affected by GA_3 application at bloom, but in 1999 GA_3 reduced the yield of 'Vignoles' 37 percent and 'Pinol Gris' 40 percent. None of the treatments affected juice quality. Changing cluster architecture with GA_3 or exposing clusters by leaf removal were sufficient alone to control bunch rot on susceptible cultivars under humid Midwest conditions, and should be integrated with a fungicide program.
机译：经过数年的处理，将具有紧密簇状的'Vignoles'和'Pinot Gris'葡萄用艾普罗酮（Rovral）杀真菌剂，选择性除叶和赤霉素（GA_3）处理，以确定对葡萄孢菌腐烂感染，簇生发展，产量的影响和质量。用GA_3处理单个簇倾向于增加簇的重量和长度，并减少腐烂浆果，但差异并不总是很明显。杀真菌剂异丙洛酮可很好地控制葡萄孢的腐烂，去除叶的发生率约为杀真菌剂的50％。多数年份的产量不受开花期GA_3施用的影响，但1999年GA_3降低了'Vignoles'产量的37％和'Pinol Gris'产量的40％。没有任何一种处理影响果汁质量。单独使用GA_3改变簇结构或通过除叶来暴露簇就足以控制潮湿的中西部条件下易感品种的束腐病，并应与杀菌剂程序整合。

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