ESTIMATION OF RANKING IN ISABGOL (PLANTAGO OVATE FROSK.) GENOTYPES OVER DIVERSE ENVIRONMENTAL CONDITIONS IN HUMID AND SUB-HUMID SOUTHERN PLAINS OF RAJASTHAN (INDIA)Mukesh Kumar Yadav, Amit Dadheech, Amit Kumar and Bhavna GoswamiAbstract Genotype x environment interaction was carried out with 18 genotypes of isabgol in a Completely Randomized Block Design with 3 replications over 3 different environments in Rajasthan during Rabi 2020 to identify stable genotypes for grain yield and contributing traits of genotypes in different environments. According to the Eberhart and Russell model for stability analysis, the mean squares due to genotypes or treatments were significant for all traits in the analysis of variance of phenotypic stability. The genotype UI-1 and HI-8 was superior in per se performance, a regression coefficient around one and non-significant deviation from regression. Stability under unfavorable environment for seed yield, while UI-2 exhibited its suitability under favorable environments for most of the characters. Besides this, some genotypes viz., UI- 11 and HI-8 for days to 50 per cent flowering, UI-3 for number of branches per plant and UI-2 for spike length were observed having regression coefficient around unity so these parents may be utilized in variable environmental conditions. These Genotypes were proven to be appropriate under diverse agro-climatic situations. |