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Revista de Ciências Agrárias

Print version ISSN 0871-018X

Abstract

STRUKER, Stevan et al. Influence of seeds vigor in the attributes of soybean yield. Rev. de Ciências Agrárias [online]. 2019, vol.42, n.3, pp.111-120. ISSN 0871-018X.  http://dx.doi.org/10.19084/rca.16389.

This study aimed to evaluate the influence of three levels of seeds vigor in the attributes of soybean yield when cultivated in the state of Rio Grande do Sul. The experiment was conducted in the crop season of 2017/2018, in the city of Condor, located in the state of Rio Grande do Sul, Brazil. The experimental design was random blocks organized in factorial scheme, being two soybean genotypes (NA 5909 RG and BMX Ativa RR) x three vigor levels (high, medium and low), and disposed in four replicates. The data was submitted to normality and homoscedasticity analysis of errors, variance analysis and interaction between soybean genotypes x seeds vigor level, linear correlation, Mahalanobis algorithm and Biplot analysis of the main compounds. The use of high vigor seeds determines the plant stand per unit of area and the grain yield of soybean.  An increment of 20 % is obtained for grain yield due to the use of seeds with elevated physiologic potential independent of the soybean genotype. The soybean initial establishment, when compromised, negatively influences the yield components, also, abrupt modifications in the plants structure does not results in effects that will compensate production.

Keywords : Glycine max; soybean varieties; seed yield; yield components.

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