Vol. 11, Issue 3 (2022)

Author(s):
SJ Ramteke, DB Kshirsagar and MN Bhalekar

Abstract:
The present investigation was undertaken during Rabi 2018 - 2019 with an objective to study transgressive segregation in F₂ generation to introgress in to genotypes of the selfed progeny derivatives of tomato. The investigation comprised of evaluation of F₂ generation for transgressive segregation for important quantitative traits in two crosses, 2x7 (C₁) and their parents. These studies helped to find out the percent of transgressive segregation in F₂ generation. In most of the segregation of cross 2x7 in F₂ generation the yield per plant of better parent was found to be transgreed simultaneously with transgression of one or more other yield contributing character. The data on ten quantitative characters were used for studying transgressive segregation of cross 2x7 for F₂ generation. Mean standard deviation were calculated to determine transgressive segregation for characters under investigation. Desirable transgressive segregation was observed for all ten characters except number of locules in fruits. The highest proportion of transgressive segregation were observed for plant height (25.00%) followed by yield per plant (24.90%), number of fruits per plant (22.37%), average number of branches (21.84%), equatorial diameter of fruit (18.68%) and pericarp thickness (17.63%) in cross 2x7 (C₁) of F₂generation.