Ecology, Environment and Conservation Paper

STABILITY ANALYSIS OF BOTTLE GOURD (LAGENARIA SICERARIA(MOL.) STANDL.) IN SOUTHERN PLAINS OF RAJASTHAN (INDIA)

Mohan Singh, Kapil Dev Ameta, Ram Avtar Kaushik, Kuldeep Singh Rajawat,Pushpendra Singh, Rajesh Meena, Mukesh Kumar Yadav and Deepak Meena

Abstract

Fifty-eight genotypes of bottle gourd were evaluated for stability in a Completely Randomized Block Designover three different environments in Rajasthan during summer and late Kharif 2021 (E2 & E3). According tothe Eberhart and Russell model for stability analysis, P3 x P6 for days to first harvest, P2 x P9, P3 x P6, P3 x P9,P4 x P7, P3 x P7, P1 x P3for fruit length, P4 x P10, P2 x P5, P1 x P6forrind thickness, P1 x P6 , P6 x P8, P9 x P10 for fleshthickness, P6 x P8, P3 x P9, P1 x P6, P8 x P9, P8 x P10, P4 x P6for stem girth, P8 x P9, P6 x P8, P4 x P8, P8 x P10 for vinelength at final harvest, P4 x P5 and P5 x P6 for yield per vine, P1 x P5 and P1 x P3 for total sugar and P5 x P10, P5x P9, P9 x P10, P1 x P2, P1 x P3, P1 x P6 and P4 x P7 for non-reducing sugar were exhibited non-significantdeviation from regression (S2di) and regression coefficient (bi<1) along with mean value lower than thepopulation mean. It indicates that these hybrids would stable in unfavorable environment. The hybrids P4x P5 and P6 x P7 for days to first harvest, P5 x P9 and P3 x P5 for fruit length, P7 x P10, P6 x P7, P6 x P9, P1 x P5 andP3 x P8 rind thickness, P2 x P8, P6 x P9, P6 x P10 and P4 x P9 flesh thickness, P3 x P8, P7 x P10, P5 x P7, P6 x P10, P1 xP2 for stem girth, P1 x P10, P3 x P6 and P5 x P6 for vine length at final harvest, P5 x P8, P8 x P10, P7 x P9, P1 x P9,P4 x P10, P1 x P6 and P6 x P9 for yield per vine, P7 x P9 and P7 x P10 for total sugar, P1 x P3 for reducing sugar andP8 x P9, P6 x P10, P3 x P7, P3 x P9, P2 x P3 and P1 x P8 for non-reducing sugar were exhibited non-significantdeviation from regression (S2di) and regression coefficient (bi>1) along with mean value higher than thepopulation mean. It indicates that these hybrids would stablein favorable environment. The hybrid P8 x P10and P9 x P10 for rind thickness and the hybrid P4 x P9 yield per vine were exhibited non-significant deviationfrom regression (S2di) and regression coefficient nearly equal to a unit (bi=1) along with mean value greaterthan the population mean, thereby indicated its average stability under different environment.