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首页> 外文期刊>Nematropica >NEMATODOS AGALLADORES EN LA VEGA DE METZTITLAN, HIDALGO, MEXICO: IDENTIFICACION, DISTRIBUCION ESPACIAL Y RELACION CON FACTORES EDAFICOS
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NEMATODOS AGALLADORES EN LA VEGA DE METZTITLAN, HIDALGO, MEXICO: IDENTIFICACION, DISTRIBUCION ESPACIAL Y RELACION CON FACTORES EDAFICOS

机译：墨西哥锡达哥市拉维加德梅茨蒂特兰的阿加拉多拉线虫：鉴定，空间分布以及与普遍因素的关系

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Guzman-Plazola, R. A., B. Hernandez-Flores, F. Franco-Navarro, and M. Cadena-Hinojosa. 2008. Root-knot nematodes in Vega de Metztitlan, Hidalgo, Mexico: identification, spatial distribution, and relationship with edaphic factors. Nematropica 38:47-61. The influence of edaphic factors (soil texture, organic matter content, electric conductivity, and pH) on the spatial distribution of root-knot nematodes (RKN) was evaluated in Vega de Metztitlan, Hidalgo, Mexico, the main agricultural area of the Reserve of the Biosphere Barranca de Metztitlan. Rhizospheric soil samples from 106 farmed fields distributed along 5000 ha were collected. A portion of each soil sample was used to determine galling indices on tomato in the greenhouse. The number of galls per gram of root (gall index) was quantified for each site sampled, and Meloidogyne species were identified. Maps of spatial distribution of RKN and all variables studied were generated by geo-statistical methods. Fifty nine percent of the fields were infested by Meloidogyne. Four RKN species were identified: Meloidogyne incognita, M. javanica, M. arenaria, and M. hapla. M. incognita was present in 85.4% of positive sites, M. javanica and M. arenaria in 5.3% of the sites, and M. hapla in 4%. Spatial distribution of Meloidogyne species was positively correlated with soil texture and negatively correlated with the organic matter content. The highest frequency and gall indices (severity) occurred in sandy soils.
机译：Guzman-Plazola，R。A.，B。Hernandez-Flores，F。Franco-Navarro和M. Cadena-Hinojosa。 2008年。墨西哥伊达尔戈市维加德梅茨蒂特兰的根结线虫：鉴定，空间分布以及与营养因子的关系。 Nematropica 38：47-61。在墨西哥伊达尔戈的维加·德·梅茨蒂特兰市（墨西哥保护区的主要农业区），评估了营养因素（土壤质地，有机质含量，电导率和pH）对根结线虫（RKN）的空间分布的影响。生物圈Barranca de Metztitlan。收集了沿5000公顷分布的106个农田的根际土壤样品。每个土壤样品的一部分用于确定温室番茄的磨损指数。对每个采样点量化每克根的胆汁数量（胆汁指数），并鉴定了根结线虫物种。 RKN的空间分布图和所有研究的变量都是通过地统计学方法生成的。 Meloidogyne侵染了59％的田地。确定了四个RKN物种：南方根结线虫，爪哇分枝杆菌，沙参分枝杆菌和鼠疫分枝杆菌。隐性支原体存在于阳性部位的85.4％，爪哇支原体和槟榔支原体在5.3％的部位，hapla支原体在4％的部位。根结线虫种类的空间分布与土壤质地呈正相关，与有机质含量呈负相关。最高频率和胆汁指数（严重度）发生在沙质土壤中。

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