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首页> 外文期刊>Journal of Turfgrass Management >Susceptibility of Poa annua L. to Anthracnose as Influenced by Water Stress
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Susceptibility of Poa annua L. to Anthracnose as Influenced by Water Stress

机译：水分胁迫对美洲大Po对炭疽病的敏感性

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摘要

Annual bluegrass (Poa annua L.) is susceptible to anthracnose (Colletotrichum graminicola) during periods of high temperatures. Moisture stress is often associated with high temperature stress but information showing the effect of moisture stress on annual bluegrass as a predisposing factor to infection by C. gramini-cola is lacking. The objective of this study was to determine the effect of moisture stress on annual bluegrass susceptibility to infection by C. graminicola. Greenhouse experiments wereconducted to study the effect of pre- and postinoculation water stress of annual bluegrass (Poa annua var. reptans (Hauskins) Timm) on colonization by C. graminicola. Annual bluegrass plants predisposed to 100%, 62.2%, 27.7% and 5.4% available soil moisture levels before inoculation resulted in increased anthracnose colonization. Plants inoculated preceding the water stress treatments resulted in no difference in C. graminicola colonization.
机译：一年生的早熟禾（Poa annua L.）在高温时期容易患炭疽病（Colletotrichum graminicola）。水分胁迫通常与高温胁迫有关，但缺乏信息表明水分胁迫对一年生禾本科草的感染是导致灰衣梭菌感染的诱因。这项研究的目的是确定水分胁迫对一年生禾本科禾草感染小球藻的敏感性的影响。进行了温室实验，以研究一年生早熟禾（Poa annua var。reptans（Hauskins）Timm）接种前和后的水分胁迫对C. graminicola定植的影响。在接种前，一年生禾本科植物易感土壤水分含量分别为100％，62.2％，27.7％和5.4％，导致炭疽菌定植增加。在进行水分胁迫处理之前接种的植物不会导致粒状衣藻的定植发生变化。

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