Low temperature is one of the main environmental
constraints for rice (
Oryza sativa
L.) grain production yield.
It is known that multi-environment studies play a critical
role in the sustainability of rice production across diverse
environments. However, there are few studies based on
multi-environment studies of rice in temperate climates.
The aim was to study the performance of rice plants in cold
environments. Four experimental lines and six cultivars
were evaluated at three locations during three seasons. The
grain yield data were analyzed with ANOVA, mixed models
based on the best linear unbiased predictors (BLUPs), and
genotype plus Genotype × Environment interaction (GGE)
biplot. High genotype contribution (> 25%) was observed
in grain yield and the interaction between genotype and
locations was not very important. Results also showed that
‘Quila 241319’ was the best experimental line with the
highest grain yield (11.3 t ha
-1) and grain yield stability
across the environments; commercial cultivars were
classified as medium grain yield genotypes.
