描述
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示例
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Default Sample
Lettuce (Lactuca sativa L.) is one of the most important leafy vegetables widely cultivated throughout the world. Under hydroponic conditions it presents diseases that generate economic losses and a negative fluctuation in its commercialization. In order to identify the causal agents, describe their symptomatology and implement proposals for chemical control; samples of diseased plants were collected, and isolates were obtained in Petri dishes.