Advances of genetic engineering in crop improvement

The investigation was done to study the heterosis and stability of different genetic parameters of bottle gourd. The experimental material consists of genotypes from a line × tester having 3 tester and 8 lines and their 24 F1s which were grown in Randomized Block Design with three replications at College Farm, College of Horticulture, Jagudan (Dist-Mehsana) and Horticulture Instructional Farm, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar during the summer and kharif season of 2022. In the present investigation, significant and positive standard heterosis for yield per vine was obtained over the environments. The range of standard heterosis for yield per vine was from -58.60% to 58.20, L1 × T1 gave consistency in performance and recorded highest significant and positive estimates of standard heterosis for yield per vine. The analysis of variance of phenotypic stability indicated that genotypes differed significantly for yield characters studied across the environments which indicated presence of substantial variation in the material studied when tested against both pooled error and pooled deviations.