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首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Distribution and Prevalence of Parasitic Nematodes of Cowpea (Vigna unguiculata) in Burkina Faso
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Distribution and Prevalence of Parasitic Nematodes of Cowpea (Vigna unguiculata) in Burkina Faso

机译：布基纳法索的Cow豆（Vigna unguiculata）寄生线虫的分布和流行

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摘要

A comprehensive survey of the plant parasitic nematodes associated with cowpea (Vigna unguiculata) production fields was carried out in the three primary agro-climatic zones of Burkina Faso in West Africa. Across the three zones, a total of 109 samples were collected from the farms of 32 villages to provide a representative coverage of the cowpea production areas. Samples of rhizosphere soil and samples of roots from actively growing cowpea plants were collected during mid- to late-season. Twelve plant-parasitic nematode genera were identified, of which six appeared to have significant parasitic potential on cowpea based on their frequency and abundance. These included Helicotylenchus, Meloidogyne, Pratylenchus, Scutellonema, Telotylenchus, and Tylenchorhynchus. Criconemella and Rotylenchulus also had significant levels of abundance and frequency, respectively. Of the primary genera, Meloidogyne, Pratylenchus, and Scutellonema contained species which are known or suspected to cause losses of cowpeayield in other parts of the world. According to the prevalence and distribution of these genera in Burkina Faso, their potential for damage to cowpea increased from the dry Sahelian semi-desert zone in the north (annual rainfall < 600 mm/year), throughthe north-central Soudanian zone (annual rainfall of 600-800 mm/year), to the wet Soudanian zone (annual rainfall s 1000 mm) in the more humid south-western region of the countiy. This distribution trend was particularly apparent for the endoparasitic nematode Meloidogyne and the migratory en-doparasite Pratylenchus.
机译：在西非布基纳法索的三个主要农业气候区，对与cow豆（Vigna unguiculata）生产场相关的植物寄生线虫进行了全面调查。在这三个区域中，从32个村庄的农场中总共采集了109个样本，以代表性地覆盖了pea豆产区。在季节中期到后期，收集了根际土壤样品和活跃生长的cow豆植物的根样品。确定了十二个植物寄生线虫属，其中六个基于其频率和丰度似乎在cow豆上具有明显的寄生潜能。这些包括Helicotylenchus，Meloidogyne，Pratylenchus，Scutellonema，Telotylenchus和Tylenchorhynchus。 criconemella和Rotylenchulus也分别具有显着水平的丰度和频率。在主要属中，Meloidogyne，Pratylenchus和Scutellonema所包含的物种已知或怀疑会导致世界其他地区的cow豆产量下降。根据这些属在布基纳法索的流行和分布，它们对cow豆的破坏潜力从北部干燥的萨赫勒半沙漠带（年降雨量<600 mm /年）到中北部的苏达尼亚带（年降雨量）增加（每年600-800毫米），到达该县西南部较湿的Soudanian带（年降水量为1000毫米）。这种分布趋势对于内寄生线虫Meloidogyne和迁徙的内寄生Pratylenchus尤为明显。

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