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首页> 外文期刊>Biocontrol Science and Technology >Extending the host range of the bioherbicidal fungus Colletotrichum gloeosporioides f.?sp. aeschynomene
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Extending the host range of the bioherbicidal fungus Colletotrichum gloeosporioides f.?sp. aeschynomene

机译：延长生物训练真菌的宿主范围Colletotrichum gleooSporioides f.?sp。 Aeschynomene.

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摘要

Spore formulations of the bioherbicidal fungus Colletotrichum gloeosporioides f.?sp. aeschynomene (ATCC No. 20358) (CGA) were evaluated for control of three weed species: northern jointvetch (Aeschynomene virginica), Indian jointvetch (A. indica), and hemp sesbania (Sesbania exaltata) in greenhouse experiments. Mortality, dry weight reduction, and plant height reduction of A.?virginica seedlings ranged from 98% to 100%, 15 days after inoculation with CGA in water, in an invert emulsion, or in Silwet L-77 surfactant. However, CGA in water caused no effects of these parameters on S.?exaltata, and only slight effects on A.?indica. A.?indica and S.?exaltata were also severely injured (mortality, dry weight and plant height reduction, 98–100%) by CGA in the invert emulsion or in Silwet L-77. The CGA in Silwet formulation incited severe disease development more rapidly than the invert emulsion or water formulations of CGA in all species. These results suggest that the host range of CGA can be expanded though formulation modification to enable this bioherbicide to control multiple weeds, thus making this product more economically acceptable.
机译：生物训练真菌的孢子制剂Colletotrichum gloeosporioides f .?sp。评价Aeschynomene（ATCC No.20358）（CGA）对三种杂草种类的控制评价：北方Rengetch（Aeschynomene Virginica），印度教育（A.Pricka），和大麻Sesbania（Sesbania Exaltata）在温室实验中。死亡率，干重减去和植物高度减少A.?Virginica幼苗的植物高度减小范围从98％至100％，在水中接种在水中的CGA，倒反转乳液或Silwet L-77表面活性剂中。然而，水中的CGA不会对S.?exaltaTA的这些参数产生没有影响，并且只对A.Indica的轻微影响。 A.?Indica和S.?Exaltata在逆变乳液或Silwet L-77中也受CGA严重受伤（死亡率，干重和植物高度减少，98-100％）。 Silwet配制中的CGA诱导严重的疾病发展，而不是在所有物种中倒置乳液或CGA的水配制品更快。这些结果表明，尽管配方修改，但可以扩展CGA的宿主范围，以使这种生物化剂能够控制多种杂草，从而使该产品更经济地接受。

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