Abstract

In breeding, genetic structures should be adaptive for the atmosphere of the country so that high yield can be achieved. In order to create high yielding varieties, the locallycultivated varieties must be bred so that the traits can be determined in terms of yield. The inheritability can be impacted through nano-fertilization, the most important tool of modern agriculture that helps in increasing the productivity of tomatoes and reduce the loss in nutrients at rhizosphere area. However, little is known with regards to responding different genotypes of tomato to nano-fertilizers under field conditions in Babylon. Here, tomato cultivars (Red rock, Castel rock, Roke star, Early pearson and Super queen) were cultivated during March 2018 and treated with three rates of nano-fertilzers (0, 1 and 2 g/l). The experiment was conducted as complete randomized block design (RCBD). Early pearson variety achieved the first highest yield in kilograms per plant, mass in kg/ha. The ‘Roke star’ variety achieved second highest yield in terms of kg/plant and mass of kg/ha. Early pearson achieved the maximum yield one kg/plant and the mass of kg/ha under third treatment. Different varieties present among the tomatoes, in their vegetative and floral parameters, were influenced by three treatments. The genetic variation was high in both leaf area and the number of leaves under the influence of three treatments, while the genetic parameters of the other attributes under the influence of the three treatments were notable. The percentage of inheritance was high under the influence of first treatment in terms of number of leaves, diameter of the stem, leaf area, yield from one plant, yield in kilograms per hectare. It was again high under the influence of the second treatment when it came to number of leaves, diameter of the stem, leaf area, number of flowers, number of inflorescences, weight of the fruit and yield per plant. The values were high under the third treatment in the parameters such as number of leaves, length of the plant, leaf area and the number of fruits.