Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum)
Thirty-four tomato genotypes from different geographical locations were evaluated for genetic diversity and screened for bacterial wilt (BW) caused by Ralstonia solanacearum. Results revealed that plant height, fruits per cluster, fruit weight, fruit diameters, locules per fruit, fruit firmness, yi...
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| Format: | Article |
| Language: | English |
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Society for Promotion of Horticulture - Indian Institute of Horticultural Research
2023-06-01
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| Series: | Journal of Horticultural Sciences |
| Subjects: | |
| Online Access: | https://jhs.iihr.res.in/index.php/jhs/article/view/2141 |
| _version_ | 1797738406739968000 |
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| author | M P Athulya P Anitha T Pradeepkumar M Sangeeta Kutty P Sainamole Kurian P Sindhumole |
| author_facet | M P Athulya P Anitha T Pradeepkumar M Sangeeta Kutty P Sainamole Kurian P Sindhumole |
| author_sort | M P Athulya |
| collection | DOAJ |
| description |
Thirty-four tomato genotypes from different geographical locations were evaluated for genetic diversity and screened for bacterial wilt (BW) caused by Ralstonia solanacearum. Results revealed that plant height, fruits per cluster, fruit weight, fruit diameters, locules per fruit, fruit firmness, yield per plant, and quality parameters exhibited high heritability and genetic advance. Clustering based on D2 analysis, classified genotypes into four clusters. Maximum intra-cluster distance was recorded within cluster I and maximum inter-cluster distance between cluster II and IV followed by cluster I and IV, indicating existence of wide genetic variability. Genotypes in cluster IV (AVTO 1711, AVTO 1717 and AVTO 1718) recorded high fruit weight coupled with high yield. These may be explored as promising donors for developing large sized bacterial wilt resistant tomatoes. The large fruited genotypes in cluster IV can also contribute to the genetic improvement of existing bacterial wilt resistant varieties placed in cluster I. Out of 34 genotypes screened for BW disease, 5 genotypes were classified as resistant and 7 as moderately resistant.
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| first_indexed | 2024-03-12T13:42:24Z |
| format | Article |
| id | doaj.art-9c257f61063f4e3fa72dce2cac51f514 |
| institution | Directory Open Access Journal |
| issn | 0973-354X 2582-4899 |
| language | English |
| last_indexed | 2024-03-12T13:42:24Z |
| publishDate | 2023-06-01 |
| publisher | Society for Promotion of Horticulture - Indian Institute of Horticultural Research |
| record_format | Article |
| series | Journal of Horticultural Sciences |
| spelling | doaj.art-9c257f61063f4e3fa72dce2cac51f5142023-08-23T13:30:36ZengSociety for Promotion of Horticulture - Indian Institute of Horticultural ResearchJournal of Horticultural Sciences0973-354X2582-48992023-06-0118110.24154/jhs.v18i1.2141Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum)M P Athulya0P Anitha1T Pradeepkumar2M Sangeeta Kutty3P Sainamole Kurian4P Sindhumole5College of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, IndiaCollege of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, IndiaCollege of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, IndiaCollege of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, IndiaCollege of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, IndiaCollege of Agriculture, Kerala Agricultural University, Thrissur - 680656, Kerala, India Thirty-four tomato genotypes from different geographical locations were evaluated for genetic diversity and screened for bacterial wilt (BW) caused by Ralstonia solanacearum. Results revealed that plant height, fruits per cluster, fruit weight, fruit diameters, locules per fruit, fruit firmness, yield per plant, and quality parameters exhibited high heritability and genetic advance. Clustering based on D2 analysis, classified genotypes into four clusters. Maximum intra-cluster distance was recorded within cluster I and maximum inter-cluster distance between cluster II and IV followed by cluster I and IV, indicating existence of wide genetic variability. Genotypes in cluster IV (AVTO 1711, AVTO 1717 and AVTO 1718) recorded high fruit weight coupled with high yield. These may be explored as promising donors for developing large sized bacterial wilt resistant tomatoes. The large fruited genotypes in cluster IV can also contribute to the genetic improvement of existing bacterial wilt resistant varieties placed in cluster I. Out of 34 genotypes screened for BW disease, 5 genotypes were classified as resistant and 7 as moderately resistant. https://jhs.iihr.res.in/index.php/jhs/article/view/2141Bacterial wiltgenetic advanceheritabilityhumid tropics |
| spellingShingle | M P Athulya P Anitha T Pradeepkumar M Sangeeta Kutty P Sainamole Kurian P Sindhumole Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) Journal of Horticultural Sciences Bacterial wilt genetic advance heritability humid tropics |
| title | Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) |
| title_full | Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) |
| title_fullStr | Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) |
| title_full_unstemmed | Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) |
| title_short | Genetic diversity and screening for bacterial wilt in tomato (Lycopersicon esculentum) |
| title_sort | genetic diversity and screening for bacterial wilt in tomato lycopersicon esculentum |
| topic | Bacterial wilt genetic advance heritability humid tropics |
| url | https://jhs.iihr.res.in/index.php/jhs/article/view/2141 |
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