Estimation of Standard Heterosis Over Environments for Fruit Yield and Its Attributes in Tomato (Solanum lycopersicum L.)

Heterosis breeding has shown to be a promising technique for enhancing crop yields. It allows for the early identification of superior or potential crosses, which is essential for managing the material efficiently and productively in subsequent generations. An experiment was conducted to evaluate 40 genotypes in three different environments. The experimental material consisted of forty genotypes; representing 28 hybrids developed in line x tester mating of 7 lines and 4 testers and check ‘Arka Rakshak’. Significant and high estimates of standard heterosis were observed for fruit yield per plant in all locations by seven hybrids. These crosses can be utilized for commercial cultivation and may also be developed further, as they are likely to produce superior transgressive segregants.