Stability analysis in scented rice (Oryza sativa L.)
Ekhlaque Ahmad, Abdul Majid Ansari
Sixteen genotypes of scented rice were evaluated for stability analysis of yield and qualitative traits at Zonal Research Station (Birsa Agricultural University), Chianki. Palamau in three consecutive years i.e. during kharif 2005, 2006 and 2007. Pooled analysis of variance showed highly significant differences among environments (year), genotypes and G x E interaction. Sufficient mean squares due to genotype x environment (G x E) interactions indicated that the genotypes interacted considerably with the environmental condition. Based on estimated stability parameters and over all mean performance of grain yield, genotypes Dhaniaphool and Birsamati were identified as superior, which were well adapted to all the environment, stable with above average yielding ability or highest grain yield (3416.3 kg/ha, 3365.1 kg/ha, respectively) with non-significant bi and S2di values. While genotypes, Shamjeera and Ranikajar were above average stable and two genotypes, namely, Basmati-370 and Kasturi were below average stable ones and as such they are suitable for cultivation in poor, and rich environments, respectively.