Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Data/hora: 30/04/2017 20:41:35 Provedor de dados: 117 País: Chile
Document related concepts
Human impact on the nitrogen cycle wikipedia , lookup
Arbuscular mycorrhiza wikipedia , lookup
Plant nutrition wikipedia , lookup
Soil horizon wikipedia , lookup
Surface runoff wikipedia , lookup
Soil erosion wikipedia , lookup
Soil respiration wikipedia , lookup
Crop rotation wikipedia , lookup
Terra preta wikipedia , lookup
Soil compaction (agriculture) wikipedia , lookup
Soil salinity control wikipedia , lookup
Canadian system of soil classification wikipedia , lookup
No-till farming wikipedia , lookup
Soil food web wikipedia , lookup
Soil microbiology wikipedia , lookup
Entomopathogenic nematode wikipedia , lookup
Transcript
Data/hora: 08/06/2017 19:04:44 Provedor de dados: 117 País: Chile Título: Soil properties influencing phytoparasitic nematode population on Chilean vineyards Autores: Fajardo P,Mario; Aballay E,Erwin; Casanova P,Manuel. Data: 2011-06-01 Ano: 2011 Palavras-chave: Nematodes; Rootstocks; K5BB; SO4; Chardonnay; Rizosphere soil. Resumo: Lifecycle of phytoparasitic nematode takes place in the rhizosphere, therefore their breeding, parasitism and mobility dynamics are inevitably influenced by the soil-root interaction, A study was performed to evaluate the influence of Vitis rootstocks to some plant parasitic nematodes under different soil conditions. Nematode populations were assessed in Vitis vinifera L. var Chardonnay plants grafted on two rootstocks (K5BB, SO4) and ungrafted Chardonnay as a control in three diferent alluvial soils in the central zone of Chile. Soils were two Inceptisols of the Casablanca Valley (Valparaíso Region), the first one without soil structure and with a densification zone in depth (S1) and the second one with sandy textural class (S3). A third soil was a Mollisol (S2) more structured than the others, situated on a locality of Melipilla (Metropolitan Region). The soils were characterized physically and morphologically and nematode genera were identified and counted using a dissecting microscope. Chardonnay presented the highest population of Meloidogyne spp. on the three soil conditions but only significant in S2 soil. The population of Xiphinema spp. and Mesocriconema xenoplax were not representative enough to relate them with either soil or the different rootstocks. The amount of Meloidogyne spp. was inversely related with the sand content but positively related with the more structured soil. The stepwise regressions resulted useful when relating nematode populations with multiple soil factors. Tipo: Journal article Idioma: Inglês Identificador: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200009 Editor: Instituto de Investigaciones Agropecuarias, INIA Formato: text/html Fonte: Chilean journal of agricultural research v.71 n.2 2011
