Development, evaluation and release of Guarani, an early maturity upland rice cultivar

Authors

  • Elcio Perpétuo Guimarães
  • Orlando Peixoto de Morais
  • Luiz Gonzaga de Barros
  • Luiz Carlos da S. Neiva
  • Antonio Alves Soares
  • Reinaldo Bazoni
  • Anne Sitarama Prabhu
  • Beatriz da Silveira Pinheiro

DOI:

https://doi.org/10.1590/S1678-3921.pab1989.v24.18380

Keywords:

varietal improvement, new cultivar, short cycle, precocity, blast, Oryza sativa

Abstract

The process of selection of the line CNAx 095-BM 30-BM 9-28 was described and the results of the evaluations presented. The line originated from the cross 63-83/IAC 25 after two cycles of modified bulk (F2 and F3) followed by one cycle of pedigree selection (F4). Grain yield, leaf and neck blast were evaluated in preliminary and advanced yield trials conducted in four Brazilian states. The line overall grain yield mean was 19.4% higher than that of the check (IAC 165). For the states of Mato Grosso, Goiás, Minas Gerais and Mato Grosso do Sul the grain yield increase over the check was 17.7%, 22.7%, 26.6% and 7.3%, respectively. The line showed higher leaf and neck blast resistance. The line was agronomically described and commercialy released with the name of Guarani.

 

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How to Cite

Guimarães, E. P., Morais, O. P. de, Barros, L. G. de, Neiva, L. C. da S., Soares, A. A., Bazoni, R., … Pinheiro, B. da S. (2014). Development, evaluation and release of Guarani, an early maturity upland rice cultivar. Pesquisa Agropecuaria Brasileira, 24(8), 969–974. https://doi.org/10.1590/S1678-3921.pab1989.v24.18380

Issue

v.24, n.8, ago. 1989

Section

PHYTOPATHOLOGY