African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6530

Full Length Research Paper

Impact of row spacing on soybean morphological parameters and yield

Claudir José Basso
  • Claudir José Basso
  • Departamento de Ciências Agronômicas e Ambientais, Universidade Federal de Santa Maria, Campus Frederico westphalen – RS, Brazil.
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Willian Bizarro Pertile
  • Willian Bizarro Pertile
  • Engº Agrº pela Universidade Federal de Santa Maria, Campus Frederico Westphalen – RS, Brazil
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Mateus Junior Rodrigues Sangiovo
  • Mateus Junior Rodrigues Sangiovo
  • Departamento de Ciências Agronômicas e Ambientais, Universidade Federal de Santa Maria, Campus Frederico westphalen – RS, Brazil.
  • Google Scholar
Fernanda Marcolan de Souza
  • Fernanda Marcolan de Souza
  • Departamento de Ciências Agronômicas e Ambientais, Universidade Federal de Santa Maria, Campus Frederico westphalen – RS, Brazil.
  • Google Scholar
Diecson Ruy Orsolin da Silva
  • Diecson Ruy Orsolin da Silva
  • Departamento de Ciências Agronômicas e Ambientais, Universidade Federal de Santa Maria, Campus Frederico westphalen – RS, Brazil.
  • Google Scholar


  •  Received: 30 January 2021
  •  Accepted: 02 June 2021
  •  Published: 31 July 2021

Abstract

The variable distribution of soybean seeds in rows can reduce the final stand and compromise grain yield. This article assesses the impact of seed distribution on the morphological characteristics of some plants and on the final yield of soybeans. The study was carried out in the experimental area of ??the federal university of Santa Maria, Frederico Westphalen campus, in the state of rio grande do sul, Brazil, in a randomized block design with five treatments and four repetitions. The size of the spacing between plants in the line constituted the variation factor and spaces of 0 (without space); 7.7; 15.4; 30.8 and 61.4 cm were evaluated. The evaluated parameters were plant height; main stem diameter; number of lateral branches; fruit per plant; insertion height of the first legume; number of viable nodes in the main trunk; number of viable nodes in the lateral branches and final grain yield. The spacing between plants in the rows increases the number of side branches, the number of nodes in the side branches and the number of fruits per plant, and spacing of up to 61.6 cm does not compromise the final soybean productivity.         

Key words: Glycine max L, plant distribution, plant parameters and final grain yield.