Genetic diversity and heritability of tomato parental lines assembled for Ralstonia solanacearum resistance

Bacterial wilt is a disease caused by Ralstonia solanacearum, which affects over 450 plant species and causes significant reduction in crop yields including of tomato (Solanum lycopersicum) worldwide. Developing and identifying tomato genotypes with Ralstonia solanacearum tolerance and high yield po...

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Bibliographic Details
Published in:African crop science journal 2024-03, Vol.32 (1), p.29-50
Main Authors: Mukamanasasira, G., Adjei, E.A., Rubaihayo, P., Ddamulira, G., Edema, R.
Format: Article
Language:English
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Summary:Bacterial wilt is a disease caused by Ralstonia solanacearum, which affects over 450 plant species and causes significant reduction in crop yields including of tomato (Solanum lycopersicum) worldwide. Developing and identifying tomato genotypes with Ralstonia solanacearum tolerance and high yield potential, presents an opportunity for improvement of crop productivity. The objective of this study was to explore the heritability of tomato resistance against bacterial wilt and the genetic variation within the population for breeding purposes. A breeding population was created by crossing two bacterial wilt-resistant (MT56 and BL333) and three commercially desirable susceptible (Assila, Rambo and Heinz) tomato varieties, using North Carolina Design II, in a screen house at the Makerere University Agricultural Research Institute, Kabanyolo (MUARIK). Results showed that the Area Under Disease Progress Curve was significant (P
ISSN:1021-9730
2072-6589
DOI:10.4314/acsj.v32i1.3