Dhatt, Ajmer SinghGill, Simranveer Kaur2023-01-082023-01-082021Gill, Simranveer Kaur (2021). Evaluation of male sterility and parthenocarpy based F1 hybrids in brinjal (Solanum melongena L.) (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.https://krishikosh.egranth.ac.in/handle/1/5810191531The present study was conducted to assess the performance of hybrids developed by involving male sterile, restorer and parthenocarpic lines of brinjal at Punjab Agricultural University, Ludhiana. Fifty hybrid combinations between male sterile and restorer lines and, twenty one between male sterile and parthenocarpic lines were evaluated for growth, yield and quality traits in randomized block design with three replications during rainy season of 2020 under open field and net-house conditions. Analysis of variance indicated significant variation for different characters of all the hybrids. The yield performance of hybrids developed by using male sterile and restorer lines was ranged between 3.10 (D-320A × R259-622-1) to 452.20 q/acre (D-104A × R-259-622-1). The best heterotic combination between D-104A  R-259-622-1 showed highest heterosis for average fruit weight (24.03 %), number of fruits per plant (14.12 %) and fruit yield per plant (41.67 %) over the standard check PBH-3. It was followed by D-104A × R-2596/PB-9-3 and D-99A × R-2596/PB-9-3 with 36.25 and 36.11% yield advantage, respectively. Hybrid D-201A × R-2596/PB-9-3 (25.85%) and D-99A × R-2596/PB-9-3 (-25.85 %) had the highest heterosis for days to 50% flowering and D-99A × R-2596/PB-9-3 (-24.00 %) for days to first harvest. Hybrid D-104A × R-259-622-1 expressed highest heterosis for flowers per cluster (39.86%) and fruits per cluster (7.07%). Hybrids involving parthenocarpic parent showed significant effect of environments for all traits except flowers per cluster, fruit length, fruit skin hardiness and number of fruits per plant and, genotype × environment interaction was also significant for all characters except flowers per cluster, fruit girth, fruit skin hardiness and total phenols; however, none of the hybrid showed significant gain for yield over the check under open field and net-house evaluation.EnglishThesis