LINE X TESTER MATING DESIGN FOR STUDYING SOME SEED TRAITS OF TOMATO RELEVANT HYBRID SEEDS PRODUCTION

Document Type : Original Article

Author

Plant Breeding Unit, Department of Genetic Resources, Desert Research Center, Cairo, Egypt

Abstract

It is crucial to investigate the traits of tomato (Solanum lycopersicum L.) seeds in order to move toward the commercial production of promising hybrid seeds from the Desert Research Center's Plant Breeding and Conservation Program. In the summer months of 2023 and 2024, the research began up. At the greenhouse program at Saint Catherine (28°33ˋ N, 33°56ˋ E, and 1650 m above sea level) of South Sinai, five lines were crossed with three tomato testers using manual pollination to develop hybrid seeds and self-pollination to generate parental seeds. The experimental design was randomized complete block design with three replicates. The results indicated that the sources of variation in line x tester analysis were significantly different for most measured traits in the two seasons. L3 and L4 were the best of most of the traits. The cross L4 × T2 was the best for the number of seeds per fruit and average seeds weight per fruit. The crosse L2 × T1 was positive heterosis and heterobettiosis for all traits. The proportional contribution lines were higher than line × tester interactions and testers for 1000 seeds weight trait, because it basically reflects seeds weight of lines. Heritability estimates in narrow sense were low for all the studied traits.
 

Keywords

Main Subjects

Files

History

  • Receive Date: 25 December 2024
  • Revise Date: 29 December 2024
  • Accept Date: 17 January 2025

Share

How to cite

Statistics