Abstract:
Tomato (Solanum lycopersictm L.) is a nutritionally important vegetable crop, and the
development of high-performing cultivars is essential to enhance productivity and meet
consumer demand. This study was conducted at the Research and Development Farm of
Cnesh Agri (Pvt) Ltd., Giriulla, to evaluate 70 newly developed Fl hybrids alongside five
commercial varieties (Padma, Platinum, Rajitha, KC-1, and Thilina) under bothpoly tunnel
and open-field conditions. Agronomic and yield-related traits were recorded, and
hierarchical cluster analysis grouped the hybrids into five clusters under poly tunnel
conditions and three clusters under open-field conditions. In the open field, hybrids
TOH089 (4487.53 +323.39 g), TOH127 (4144.00 +846.16 g), TOH096 (4014.00 +167.59
g), TOH063 (4025.69 + 335.18 g), TOHl28 (3789.67 + 393.52 g), TOH075 (3147.39 +
183.10 g), TOH050 (3563.28 + 374.32 g), TOH029 (3844.39 + 350.15 g), TOH072
(37t7.78 + 461.72 g), and TOH081(3709.50 + 345.09 g) exhibited superior yield
performance over commercial check, Platinum Fl (2009.08 + 410.50 g). Under poly tunnel
conditions, ToH098 (2623.7 + 383.95 g), TOH107 (3614.00 + 461.00 g), ToH128
(2742.33 * 263.83 g), TOH096 (2506.00 + 280.38 g), TOH086 (3022.00 + 212.00 g),
TOH036 (2220.00 i 928.00 g), TOH081 (2569.00 +569.47 g), TOH057 (2611.33 + 306.31
g), TOH083 (3133.33 + 162.46 g), and Padma (3190.00 * 50.39 g) ranked highest yield.
Notably, TOH081, TOH096, and TOH128 consistently performed well across both
environments. These elite hybrids represent strong candidates for commercial cultivation
and valuable breeding materials for future improvement of tomato productivity,
adaptability, and sustainability in Sri Lanka.