Data/hora: 01/06/2024 05:33:10

Provedor de dados: | Ciência Rural
País: | Brazil
Título: | Spatial and temporal distribution of cotton squares and small cotton bolls fallen on ground after damage by boll weevil and the efficiency of the equipment used to collect them
Autores: | Silva,Carlos Alberto Domingues da; Duarte,Marília de Macêdo Freire; Gonçalves,Suziane Gomes; Vasconcelos,Eduardo Domingos.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Anthonomus grandis; Gossypium hirsutum; Punctured squares by oviposition and feeding.
Resumo: | ABSTRACT: In this study, we determined the spatial and temporal distribution of fallen cotton squares and small cotton bolls fallen damaged by boll weevil and the efficiency and time interval of the equipment used to collect cotton samples. Spatial and temporal distribution of cotton squares and small cotton bolls fallen on the soil damaged by boll weevil among cotton rows was determined in an experimental design of randomized blocks in a factorial arrangement of 4x3, represented by soil surface tracks located at 1-11cm, 12-22cm, 23-33cm, and 34-44cm away from the planting row of cotton plants 70, 85, and 100 days of age. Efficiency and collection time interval of the cotton samples fallen on the soil infested by boll weevil by plastic rakes that were straight or fan-shaped, big broom, collector instrument model CNPA and aspirator of leaves ‘Trapp’ were determined in randomized block design with five treatments, 10 repetitions for each. Results demonstrated that the collection of cotton samples must be performed with greater attention to soil strips located below the cotton top projection and aspirator ‘Trapp’ of leaves was more appropriate for the operation as it used less time of collection with similar efficiency to other available equipment.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700352
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160653
Formato: | text/html
Fonte: | Ciência Rural  v.47 n.7 2017
Fonte: | info:eu-repo/semantics/openAccess