Período total de prevenção a interferência das plantas daninhas na cultura da alface cultivar Solaris

Paulo Roberto Fidelis Giancotti; Maria Helena Machado; Micheli Satomi Yamauti

doi:10.5433/1679-0359.2010v31n4Sup1p1299

Total period of weed interference prevention in lettuce cv. Solaris

Authors

Paulo Roberto Fidelis Giancotti Universidade Estadual Paulista Júlio de Mesquita Filho
Maria Helena Machado Universidade Estadual de Londrina
Micheli Satomi Yamauti Universidade Estadual Paulista Júlio de Mesquita Filho

DOI:

https://doi.org/10.5433/1679-0359.2010v31n4Sup1p1299

Keywords:

Lactuca sativa L., Weed interference, Competition

Abstract

This research work aimed to determine the total period of interference of weeds prevention of lettuce cultivar Solaris. The experiment was conducted in Universidade Estadual de Londrina, in the period of autumn/ winter of 2008. The lettuce crop remained free from weed interference from emergence up to 0, 10, 20, 30, 40, 50 e 60 days. The experiment was arranged in a randomized block design with four replications. The weed community was composed by Bidens pilosa, Amaranthus hybridus, Oxalis corniculata, Euphorbia heterophylla, Spinacia oleracea, Commelina benghalensis e Lepidium virginicum. It was determined dry and fresh matter of weeds, and number of lettuce leaves. Assuming a tolerance of 5% for crop production decrease, it was verified that the total period of interference prevention (TPIP) occurred up to 21 days after transplanting. Weed interference throughout the crop cycle reduced 25% of its yield.

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Author Biographies

Paulo Roberto Fidelis Giancotti, Universidade Estadual Paulista Júlio de Mesquita Filho

Aluno do Programa de Pós Graduação em Produção Vegetal em Agronomia, Laboratório de Biologia e Manejo de Plantas Daninhas, Departamento de Biologia Aplicada à Agropecuária, Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, Universidade Estadual Paulista "Júlio de Mesquita Filho".

Maria Helena Machado, Universidade Estadual de Londrina

Profª Drª. Engª. Agrª. do Departamento de Agronomia, Centro de Ciências Agrárias, Universidade Estadual de Londrina, UEL. Caixa Postal 6001, CEP: 86051-990, Londrina - Pr.

Micheli Satomi Yamauti, Universidade Estadual Paulista Júlio de Mesquita Filho

Alunos do Programa de Pós Graduação em Produção Vegetal em Agronomia, Laboratório de Biologia e Manejo de Plantas Daninhas, Departamento de Biologia Aplicada à Agropecuária, Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal, Universidade Estadual Paulista "Júlio de Mesquita Filho".

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Published

2011-02-09

How to Cite

Giancotti, P. R. F., Machado, M. H., & Yamauti, M. S. (2011). Total period of weed interference prevention in lettuce cv. Solaris. Semina: Ciências Agrárias, 31(4Sup1), 1299–1304. https://doi.org/10.5433/1679-0359.2010v31n4Sup1p1299

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Issue

Vol. 31 No. 4Sup1 (2010)

Section

Articles

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