Heterosis Study in Tomato (Solanum lycopersicum L.) Hybrids for Various Attributes of Quality and Yield
K. K. Sharma *
Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India.
Pramila
Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India.
Sunil
Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar, India.
Sanjay Seemawat
MPUAT, Udaipur, Rajasthan, India.
*Author to whom correspondence should be addressed.
Abstract
The experiment in which ten tomato lines with three testers were crossed in line × tester to produce thirty F1 hybrids, heterobeltiosis and standard heterosis were analyzed for various attributes of quality and yield. The analysis of variance indicated significant differences for all characters evaluated, suggesting that there is variation among the characters studied. The Parental lines viz., EC 177516, S-12 and Pant T-5 were found most promising for exploiting heterosis. Among the thirty crosses, these three crosses combinations, EC 177516 × PKM-1, S-12 × PDT-3-1 and Pant T-5 × Bhilai were found to be promising for various attributes of quality and yield. However, those hybrids performing super attributes were heterotic significantly for quality and yield attributes.
Keywords: Line × tester, heterobeltiosis, standard heterosis, tomato hybrids