Dr. SRINIVASA, VDr. DEVARAJUNIKHIL GOWDA, M. N.2024-07-252024-07-252022-11-24https://krishikosh.egranth.ac.in/handle/1/5810212516The study under protected condition was conducted to assess the extent of genetic variability, correlation and path coefficient analysis between yield and yield attributes in F2 segregating population of the two tomato crosses viz., EC15127 × EC362941 and EC521069 X EC362941. The experiment was carried out during 2021-2022 at the College of Horticulture, Mudigere. Analysis of variance showed highly significant differences among the traits. High PCV and GCV were registered for fruit yield per plant, locules per fruit, number of fruits per plant, fruit volume, average fruit weight and yield per hectare among the progenies of both the crosses. Estimates of high heritability coupled with high genetic advance as per cent over mean recorded for most of the studied characters which supports the notion that selection could actually improve these traits by highlighting the significance of additive gene action. Correlation study revealed that fruit yield per plant had highly significant positive correlation with average fruit weight, number of fruits per plant, number of fruit clusters per plant and fruit length in both the studied crosses. Path coefficient analysis for fruit yield per plant showed that number of fruit clusters per plant, secondary branches per plant, number of flowers per cluster, fruit length, average fruit weight and number of fruits per plant had positive direct effect in both the crosses suggesting the possibility of increasing fruit yield per plant by selecting these traits directly. The superior segregants identified with respect to fruit yield per plant in the cross EC15127 × EC362941 were P7 5(82) -2.90 kg, P6 -5(81)-2.88 kg and Pg -5(127)-2.73 kg. Whereas, in the cross EC521069 × EC362941, P7-13(138)- 2.75 kg, P1 -13(02)-2.70 kg and P6-13(122)-2.69 kg were identified as superior segregants, which could be developed into pure lines by selfing and selection or released as variety after stabilization.EnglishThesis