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首页> 外文期刊>Nematropica >FREQUENCIES AND POPULATION DENSITIES OF THE MAJOR PHYTONEMATODES ASSOCIATED WITH BANANA IN THE STATE OF ALAGOAS, BRAZIL [FREQUêNCIAS E DENSIDADES POPULACIONAIS DOS PRINCIPAIS FITONEMATOIDES ASSOCIADOS à BANANEIRA NO ESTADO DE ALAGOAS, BRASIL]
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FREQUENCIES AND POPULATION DENSITIES OF THE MAJOR PHYTONEMATODES ASSOCIATED WITH BANANA IN THE STATE OF ALAGOAS, BRAZIL [FREQUêNCIAS E DENSIDADES POPULACIONAIS DOS PRINCIPAIS FITONEMATOIDES ASSOCIADOS à BANANEIRA NO ESTADO DE ALAGOAS, BRASIL]

机译：巴西阿拉戈斯州与香蕉联系在一起的主要植物检疫频率和人口密度

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Banana (Musa spp.) is one of the most cultivated and consumed fruits in the tropics. The low productivity and lowquality of the Brazilian bananas are largely due to disease problems, among which are nematodes. In Alagoas, there isa lack of information on the nematodes species affecting the banana crop. The objectives of this study were to updatethe information on the occurrence of plant-parasitic nematodes in some of the banana producing areas in Alagoas state,to provide quantitative information on the frequencies and population densities of these parasites, and to identify thenematode species associated with the banana crop. The study was carried out from April 2011 to January 2012. Fortytwosoil and roots samples were collected from banana orchards planted with cultivars Prata, Pacovan, and Terra in 13municipalities of Alagoas state. Nematodes were extracted from roots and soil samples using the maceration-centrifugalflotation and the centrifugal-flotation methods, respectively. The frequencies of the nematodes species extracted fromthe roots and soil samples were as follows: Helicotylenchus spp., 95% and 98%; Meloidogyne spp., 79% and 81%;Pratylenchus spp., 36% and 26%; and Radopholus similis, 38% and 21%; respectively. On average, Helicotylenchus spp.was most abundant with 2,359/ 50 g root, followed by R. similis: 1,359, Meloidogyne spp.: 810, and Pratylenchus spp.:682. These high population densities show the need for research aimed at the management of plant-parasitic nematodesof banana in Alagoas state.
机译：香蕉（Musa spp。）是热带地区种植和消费最多的水果之一。巴西香蕉的低生产率和低质量主要是由于疾病问题，其中包括线虫。在阿拉戈斯，缺乏有关影响香蕉作物的线虫物种的信息。这项研究的目的是更新有关在阿拉戈斯州某些香蕉产区的植物寄生线虫发生的信息，以提供有关这些寄生虫的频率和种群密度的定量信息，并确定与这些寄生虫相关的线虫种类。香蕉作物。该研究从2011年4月至2012年1月进行。42土和根样品是从阿拉戈斯州13个城市的种植有Prata，Pacovan和Terra品种的香蕉果园中收集的。分别使用浸软-离心和离心-浮选法从根和土壤样品中提取线虫。从根和土壤样品中提取的线虫种类的频率如下：螺旋线虫属，分别为95％和98％;根结线虫属（Meloidogyne spp。），分别为79％和81％;角鲨属（Pratylenchus spp。，36％和26％）; Radopholus similis分别为38％和21％;分别。平均而言，Helicotylenchus spp。最丰富，有2,359 / 50 g根，其次是R. similis：1,359，Meloidogyne spp.：810和Pratylenchus spp.:682。这些高人口密度表明有必要进行针对阿拉戈斯州香蕉植物寄生线虫的管理研究。

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