Abstract
Turkey is the fourth producer country among the other countries in the world and tomato are produced around 11 million tons per year. Over many years, tomato adapted to the geography of Turkey has shown a high biodiversity. In this research, with 76 local tomato genotypes collected from 52 different provience, 4 foreign and 8 wild species, total 88 tomato genotypes were used. Morphological variations among these materials were investigated. Some of the local genotypes were determined to be accessions increasing variations. A cluster diagram obtained from the morphological descriptors produced ten main sub-cluster groups of tomato accessions at a coefficient of 0.15. Accessions were put into cluster groups based on certain qualities unique. It was observed that 86 out of 88 tomato accessions under study were distinct accessions. G80 and G83 were recorded similar (94%) accessions in all accessions. Similarity coefficient values among the 88 accessions ranged from -0.11 to 0.94. Accessions with similar quantitative and qualitative morphological characters appeared well grouped in the same cluster. These accessions are considered as important genetic resources in tomato breeding studies.
Highlights
Tomato (Solanum lycopersicum) is one of the most important and widely grown vegetable crops in both temperate and tropical regions all over the world
The objective of this study was to determine a genotypic morphological characterization of tomato genotypes, to compare some local (76 materials collected from 52 different provinces of Anatolia) tomato genotypes and to identify similarity of groups based on morphological features by using NTSYS pc (Numerical Taxonomy System) analysis program for using in future breeding programs
The eight wild types of tomato (Solanum hirsutum, S. lycopersicum var. cerasiforme, S. pimpinellifolium, S. peruvianum, S. peruvianum var. humifusum, S. pennellii, S. chilense ve S. chimielewskii) and the four accessions of tomatoes homeland (Galapagos Island, Brazil, Mexico and Equator genotypes from South America) (Rick and Holle, 1990) were obtained from the Tomato Genetic Resource Center (TGRC) of USA and the seventy-six accessions were obtained from Ege Agricultural Research Institute, Turkey
Summary
Tomato (Solanum lycopersicum) is one of the most important and widely grown vegetable crops in both temperate and tropical regions all over the world. It is a self-pollinated crop and is a member of Solanaceous family with 2n = 24. Tomato is being grown in China, India, USA, Turkey, Italy, Egypt, Spain, Brazil, Iran and Mexico as leading countries. Tomato is a strategic product with area of 4.751.530 ha and production of 159.347.031 tons in the world. Tomato is an important vegetable crop in terms of 328.000 ha of area and 11.003.433 tons of production, in the 4th place of the world tomato production after China, USA and India (FAO, 2011)
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