Evaluating rice cultivars in different rice-producing areas from “Los Palacios”, Pinar del Río, to be used in breeding programs

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Noraida de J. Pérez León

Abstract

Rice blast is considered the most devastating
disease worldwide; since it is widely distributed, it affects
the aerial parts of rice plants, reducing agricultural yields
significantly, besides constituting a serious constraint
to production. Knowing this antecedent, this work was
developed for two years, with the aim of selecting resistant
rice cultivars against Magnaporthe grisea Barr (Pyricularia
grisea Sacc) with good agronomic performance, to be
further used as progenitors in rice breeding programs.
Results showed a significant interaction among genotype,
location and year of cultivars against blast and yield. The
usefulness of Biplot analysis was confirmed for selecting
stable cultivars according to their proximity to the origin of
coordinates, as well as those responsible for the significant
genotype-environment interaction. Four cultivars were
classified as more stable to rice blast resistance: ‘2077’,
‘IR 759-54-2-2’, ‘Tetep’ and ‘Moroberekan’, and six cultivars
for agricultural yield: ‘Amistad’82’, ‘INCA LP-1’, ‘INCA
LP-6’, ‘6066’, ‘CP1C8’ and ‘IR 1529-430’, characteristics that
let them be used as progenitors for crosses in rice breeding
programs of Cuba.

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How to Cite
Pérez León, N. de J. (2016). Evaluating rice cultivars in different rice-producing areas from “Los Palacios”, Pinar del Río, to be used in breeding programs. Cultivos Tropicales, 37(1), 116–123. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/1173
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Original Article