YIELD PERFORMANCE AND DISEASE RESPONSE OF NOVEL TOMATO HYBRIDS UNDER FIELD CONDITIONS
DOI:
https://doi.org/10.58475/pynahy04Keywords:
Solanum lycopersicum, commercial check, heterosis, agronomic performance, genetic diversity, virus tolerance, PakistanAbstract
The study was conducted at the at vegetable research area of Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, Pakistan, during 2024–25 to develop and evaluate newly developed tomato (Solanum lycopersicum L.) hybrids for yield performance and disease tolerance. Eleven new hybrids, including a commercial check (Marjan), were tested in a randomized complete block design with three replications under field conditions. Significant differences were observed among genotypes for vegetative, reproductive and yield traits. Hybrid NBH-714 produced the highest yield (3.0 kg plant-1; 34.3 t ha-1), followed by NBH-715 and NBH-691. Standard heterosis varied from -0.73 to 66.6%, indicating strong hybrid vigor in several crosses. All hybrids were susceptible to early blight, while NBH-721 showed the lowest late blight index (29.7%). Yield-related traits contributed most to genetic variability based on principal component analysis. Overall, NBH-714, NBH-715 and NBH-691 exhibited superior yield potential and are recommended for commercial evaluation and breeding improvement under local agro-climatic conditions.
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Copyright (c) 2026 Ariba Shamail, Abdul Rehman Khan, Amjad Hameed, Saba Akram, Khalid Pervaiz Akhtar, Madiha Shafique (Author)
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