Agronomic Performance and Genotype × Environment Interaction of some Hybrid Rice in Nigeria
Year: 2019
Type: article
Abstract: Agronomic parameters and Genotype × environmental interaction for stability estimate were investigated on grain yield of 2 hybrid rice lines (TEJ Gold and 6444 Gold) with three commercially released rice varieties (FARO 44, FARO 52 and FARO 57) as checks.This was done in six locations in 2017 of which five out of the six (Kebbi, Kano, Enugu, Warri and Lafiagi)were in dry season and one (Wushishi) in wet season.The experiments were laid out in a randomized complete block design in three replications having 20 cm inter and intra row spacing.AMMI ANOVA for grain yield revealed significant difference among the genotypes and environments that were tested (P<0.01) and their interaction.The observed difference on the interaction indicated that, the genotypes responded differently across the different environments.The partitioning of GGE through GGE biplot analysis showed that, PC1 and PC2 contributed 75.34% and 16.33% which summed up and explained a total of 91.67% of the observed variation seen, though PC1 contributed more of the observable variations.Cultivar ranking and genotype stability revealed that the hybrid TEJ GOLD, performed well across the test locations though not stable across the locations tested.However, FARO 52 and FARO 57 had a small GE effect, indicating their stability and being less influenced by the environment.The two hybrids rice (TEJ Gold and 6444 Gold) significantly gave a higher yield of 6683 and 6005 kg/ha respectively, with yield advantage ranging from 11.9 to 32.8% over the three check varieties.
Institution: National Cereals Research Institute
Language: English
Topic: Genetics and Plant Breeding
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2967720331