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首页> 外文期刊>Acta Horticulturae >Effect of Harpin Ea on the Fruit Production and Control of Phytophthora infestans in Greenhouse Tomato
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Effect of Harpin Ea on the Fruit Production and Control of Phytophthora infestans in Greenhouse Tomato

机译：Harpin Ea对温室番茄疫霉侵染的影响

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摘要

The protein harpin Ea is considered an effective stimulator of self-defense systems as well as of other physiological mechanisms in many plant species. This work studies the effect of harpin Ea in fruit production as well as in its possible control ofPhytophthora infestans, a serious pathogen of open-field and greenhouse tomato cultivation. Harpin Ea was applied at a dose of 50.6 g/hl of the commercial product Messenger~(R). In order to study the possibility for control of tomato late blight (Phytophthora infestans (Mont.) de Bary) with harpin Ea, 200 g fosetyl-Al/hl (Aliette 80 WP formulation,) was chosen as control reference product. Daily growth, number of flowers and fruits per dcluster, percent fruit set and total yield per plant were measuredin order to estimate the effect on production. Effectiveness of control of the pathogen was based on leaf spot and stem lesion development. Harpin Ea increased fruit set percentage by 6.9-7.7%, yield by 47.8-50.3%, as well as provided pathogen control ranging from 98.8 to 100% in comparison with the untreated control plants.
机译：harpin Ea蛋白被认为是自卫系统以及许多植物物种中其他生理机制的有效刺激剂。这项工作研究了harpin Ea在水果生产中的作用及其对疫霉菌（Phytophthora infestans）的控制作用，疫霉菌是露天和温室番茄栽培的重要病原体。 Harpin Ea的用量为商品Messenger®的50.6 g / hl。为了研究用harpin Ea防治番茄晚疫病（疫霉疫霉（Monty de de Bary））的可能性，选择了200 g fosetyl-Al / hl（Aliette 80 WP配方）作为对照参考产品。测量日生长量，每个簇的花和果实数，结实百分比和每株植物的总产量，以估计对生产的影响。控制病原体的有效性基于叶斑和茎部病变的发展。与未处理的对照植物相比，Harpin Ea的坐果率提高了6.9-7.7％，产量提高了47.8-50.3％，病原体控制范围从98.8％降至100％。

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