Data/hora: 10/06/2024 06:54:20

Provedor de dados: | 65
País: | Brazil
Título: | Geostatistics applied to the study of the spatial distribution of Tibraca limbativentris in flooded rice fields
Autores: | Pazini,Juliano de Bastos; Botta,Robson Antonio; Seidel,Enio Júnior; Silva,Fernando Felisberto da; Martins,José Francisco da Silva; Barrigossi,José Alexandre Freitas; Rübenich,Rodrigo.
Data: | 2015-06-01
Ano: | 2015
Palavras-chave: | Oryza sativa; Rice stem bug; Dispersion; Monitoring.
Resumo: | Tibraca limbativentris (rice stem bug) is an insect highly injurious to the rice crop in Brazil. The aim of this research was to define the spatial distribution of the T. limbativentris and improve the sampling process by means of geostatistical application techniques and construction of prediction maps in a flooded rice field located in the "Planalto da Campanha" Region, Rio Grande do Sul (RS), Brazil. The experiments were conducted in rice crop in the municipality of Itaqui - RS, in the crop years of 2009/10, 2010/11 and 2011/12, counting fortnightly the number of nymphs and adults in a georeferenced grid with points spaced at 50m in the first year and in 10m in the another years. It was performed a geostatistical analysis by means adjusting semivariogram and interpolation of numeric data by kriging to verify the spatial dependence and the subsequent mapping population. The results obtained indicated that the rice stem bug, T. limbativentris, has a strong spatial dependence. The prediction maps allow estimating population density of the pest and visualization of the spatial distribution in flooded rice fields, enabling the improvement of the traditional method of sampling for rice stem bug
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601006
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20140841
Formato: | text/html
Fonte: | Ciência Rural  v.45 n.6 2015
Fonte: | info:eu-repo/semantics/openAccess