Quantitative descriptors and their direct and indirect effects on corn yield

Authors

  • João Paulo Gonsiorkiewicz Rigon Universidade Estadual Paulista
  • Carlos Alberto Gonsiorkiewicz Rigon Universidade Federal de Santa Maria
  • Silvia Capuani Universidade Estadual Paulista

Abstract

The objective of this study was to evaluate the direct and indirect effects of ten quantitative descriptors of agronomic importance in productivity of 25 maize hybrids and their respective influences of heritability. The experiment in randomized blocks with four replications, was conducted in 2010/2011 crop in a soil under humid subtropical climate. The quantitative descriptors were: ear length, ear diameter, cob diameter, number of rows of grains, stem diameter, plant height, ear height, weight of 100 grains, grain weight per ear and number of grains per ear. The grain weight per ear and ear length showed high correlation with grain yield, and the descriptors with the highest potential for selecting superior genotypes and showing high heritability.

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Published

2014-02-20

How to Cite

RIGON, J.P.G., RIGON, C.A.G. and CAPUANI, S., 2014. Quantitative descriptors and their direct and indirect effects on corn yield . Bioscience Journal [online], vol. 30, no. 2, pp. 356–362. [Accessed26 May 2022]. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/17884.

Issue

Section

Agricultural Sciences