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首页> 外文期刊>Acta Horticulturae >Rate of nematode infestation of clean banana planting material (Musa spp. AAA) in Uganda.
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Rate of nematode infestation of clean banana planting material (Musa spp. AAA) in Uganda.

机译：乌干达清洁香蕉种植材料（Musa spp。AAA）的线虫感染率。

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Highland cooking bananas (Musa spp. AAA) are a major staple in Eastern Africa. However, plant parasitic nematodes comprise a primary production constraint. Planting of infested material is the principle means of dispersal for these nematodes, as well as banana weevil and Fusarium wilt. Nematode infestation of banana planting material can be highly reduced, using hot-water treatment, and through tissue culture techniques they can be eliminated. The benefits of nematode-free material for production,however, depend on the rate of (re)-infestation. Therefore, experiments were set up on-station (Sendusu) and in collaboration with farmers at Ikulwe and Ryeru. On-station density of Radopholus similis and Helicotylenchus multicinctus in hot water treatedplanting material remained significantly lower (P < 0.001) than in material infested at planting over a period of 36 months after planting, irrespective of the type of management. In the farmers' fields at Ikulwe R. similis and H. multicinctus remainedsignificantly lower (P < 0.05) in the hot water treated than in the untreated farmers' material over a period of 30 months. At this site clean material was planted adjacent to the existing banana stand. However, at Ryeru, the material was planted into existing plots and the hot-water treated material was rapidly infested. Due to the relatively slow rate of nematode re-infestation, clean material, planted adjacent to the existing banana stand, may allow a management option whereby farmers select materialfrom this clean source to further expand their plantation.
机译：高地烹饪香蕉（Musa pp。AAA）是东部非洲的主要主食。但是，植物寄生线虫构成主要的生产限制。种植受感染的材料是这些线虫以及香蕉象鼻虫和镰刀菌枯萎病传播的主要手段。使用热水处理可以大大减少香蕉种植材料的线虫侵染，并且可以通过组织培养技术消除它们。但是，生产无线虫材料的好处取决于（重新）侵染的速度。因此，在现场（Sendusu）并与Ikulwe和Ryeru的农民合作建立了实验。无论采用哪种管理方式，在经过热水处理的种植材料中，在种植后的36个月内，Rad豆和螺旋形螺的在站密度均显着低于（P <0.001）（P <0.001）。在30个月的时间里，在处理过的热水中，在Ikulwe R. similis和H. multicinctus的农田中，未经处理的农民材料中的磷含量仍然显着较低（P <0.05）。在该地点，在现有香蕉架附近种植了清洁材料。但是，在Ryeru，该材料被种植到现有的地块中，并且经过热水处理的材料迅速受到感染。由于线虫再侵染的速度相对较慢，在现有香蕉林附近种植的清洁材料可能提供管理选择，农民可以从这种清洁来源中选择材料，以进一步扩大其种植面积。

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