Physiological performance and growth of cowpea under weed management
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 2
Abstract
The interference of weeds affects the physiological parameters of cowpea culture, with direct reflection on growth and productivity. The objective of this study was to evaluate the performance of different weed control methods in cowpea culture in order to identify the most efficient by monitoring the growth components, being these compounds of height (cm), number of leaves and diameter of the stem (mm) and the physiological aspects of the culture, by collecting data: CO2 assimilation rate (μmol m-2 s-1), transpiration (mmol H2O m-2 s-1), Stomatal conductance (mol of H2O m-2 s-1) and internal CO2 concentration, with an infrared gas analyzer. The experiment was accomplished under field conditions at the Center for Agro-Food Science and Technology of the Federal University of Campina Grande, Campus Pombal, Paraíba . The experimental design was a randomized complete block design with eight treatments and four replications in a 2 x 4 factorial scheme, being these factors: two cultivars of cowpea (BRS Marataoã and BRS Rouxinol) and four weed management (mechanical, chemical , Physical and uncontrolled). Chemical, mechanical and physical management are shown to be superior in the growth components, not affecting these characteristics, being the gas exchanges severely affected.
Authors and Affiliations
Uriel Calisto Moura Pessôa, Kelder José Alves de Oliveira, Anielson dos Santos Souza, Thiago Alves Pimenta, Rafael Vitor da Silveira Muniz, Antônio Gomes de Araújo Neto
Keywords
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- EP ID EP253790
- DOI 10.18378/rvads.v12i2.5067
- Views 101
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