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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Management of nursery wilt of black pepper (Piper nigrum L.) with antagonistic bacteria
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Management of nursery wilt of black pepper (Piper nigrum L.) with antagonistic bacteria

机译：用拮抗细菌处理黑胡椒（Piper nigrum L.）苗圃病

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摘要

Black pepper is an important agricultural produce of Kerala, that contributes sub-stantially to the foreign exchange earning of India. Black pepper cultivation in India has been under threat due to severe infestation of foot-rot disease incited by Phytophthora capsici, which has been spreading at an alarming rate. Infection in the nursery stage results either in the wilting of the cuttings, i.e. the planting material or rotting of the newly emerging leaves. The disease is often carried to the main field through the infected rooted cutting and the rooting medium. Biological control, especially that involving Pseudomonas spp., has emerged as an important alternative in managing soil-borne plant diseases in recent years. However, very little work has been done on biological control of diseases in vegetatively propagated crops, except potato. Trichoderma harzianum and Trichoderma viride have been used as biological control agents against P. capsici attacking black pepper, both in the main field and nursery. Only limited attempts have been made on the biological control of foot-rot of black pepper using bacterial antagonists. We report here a rapid screening assay for the selection of efficient bacterial antagonists which can colonize and protect the planting material against P. capsici-induced wilt of black pepper in the nursery.
机译：黑胡椒是喀拉拉邦的重要农产品，对印度的外汇收入贡献巨大。由于辣椒疫霉菌引起的严重的腐烂病侵袭，印度的黑胡椒种植受到了威胁，这种病以惊人的速度传播。苗期感染会导致插条枯萎（即种植材料）或新出现的叶子腐烂。该病通常通过感染的生根插条和生根介质传播到主要领域。近年来，生物防治，特别是涉及假单胞菌的生物防治，已成为控制土壤传播的植物病害的重要替代方法。但是，除了马铃薯外，在营养繁殖作物中对疾病的生物防治方面的工作还很少。在主田和苗圃中，哈茨木霉和里氏木霉已被用作对抗辣椒辣椒黑胡椒的生物防治剂。使用细菌拮抗剂在黑胡椒的脚腐病的生物防治方面仅进行了有限的尝试。我们在这里报告了一种快速筛选测定法，用于选择有效的细菌拮抗剂，该细菌拮抗剂可以在苗圃中定殖并保护种植材料免受辣椒辣椒引起的黑胡椒枯萎。

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