Assessment of Heterosis in Tomato (Lycopersicon esculentum L.)

Abstract

The present study, Estimate of Heterosis in Tomato (Lycopersicon esculentum L.) under the Bundelkhand Region, was conducted in Rabi 2021–22 and 2022–23 at the Experimental, Organic Research farm Kargunwa ji, Department of Horticultural Sciences, Institute of Agricultural Sciences, Bundelkhand University Jhansi (Uttar Pradesh). The study involved raising all 17 parents (12 lines and 5 testers) in separate plots, along with a check grown in RBD i.e. to determine the best F1 hybrid, in order to calculate the proportion or amount of heterosis in the crossings, and relationship between different traits. The three most effective line and testers with their combinations viz.,. H-88- 78-5, Kashi Aman, and H-88-78-5. Their F1 hybrids, H-88-78-1×Kashi Chaya, VRT-67 Kashi Chaya, and H-88-78-5VRT-50, outperformed the other treatments by a large margin in terms of maximum plant height was recorded (98.11,) VRT-67 × Kashi Chaya, number of fruit per cluster in F1 hybrids Line was recorded (9.67) under Tolev-16 × Kashi Aman which was at par with (9.63) under VRT-51×VRT-30 and VRT-01 ×Kashi Aman. However, mean performance for lycopene content was recorded for 12 lines and 5 testers. Lycopene content was (11.31) under the line VRT-67 and mean performance for their F1 hybrids after the crosses (12.56) were under treatment VRT-51×VRT-50.