Comparison in Quantity Characters (Flowering and fruit set) of ten selected tomato (solanum lycopersicum L.) Genotypes under subtropical climate conditions (Ahvaz)

Abstract:The tomato is now grown worldwide for its edible fruits, with thousands of cultivars having been selected with varying fruit types, and for optimum growth in differing growing conditions. Cultivated tomatoes vary in size. There are around 7500 tomato varieties grown for various purposes. Heirloom tomatoes are becoming increasingly popular, particularly among home gardeners and organic producers, since they tend to produce more interesting and flavorful crops at the cost of disease resistance and productivity. Hybrid plants remain common, since they tend to be heavier producers, and sometimes combine unusual characteristics of heirloom tomatoes with the ruggedness of conventional commercial tomatoes. Tomato varieties are roughly divided into several categories, based mostly on shape and size.The aim of the present work was to Comparison in seedling growth and yield of ten selected tomato genotypes under subtropical climate conditions. This experiments with ten tomato genotypes of different origins (Netherlands, Russia and some cultivar native mass in Iran, with numbers M48, 21, 16, 19, 28, 33, 34, 36, 18, 25) and control (Cheff) cultivar were conducted in the physiology laboratory and Department of Horticulture Orchard, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Iran (2009, 2010). Data showed that all growth parameters such as time of leaf advent, Time of flowering and ripeningin first cluster, Number of Flowers and Number of Fruits per Cluster, as well as Yield per Plant, responded different as the subtropical climate conditions (Ahvaz).