Assessment of tomato stamping varieties in irrigated conditions in the Lower Volga region

The article discusses the results of two years experiments to study the morphological and biological parameters stam varieties of tomato. Stam samples were taken in the breeding gene pool of tomato, characterized by the length of the stem. The paper analyzed 8 samples. Particular attention was paid to the study of samples of grounds such as the length of the main stem, number of leaves on the main stem, number of flowers in the third brush, brush the third length, number of lateral stems, stem diameter at the base, the stem diameter of the third sheet. Also we carried out the description of the fruits. Determined average fruit weight, length and fruit diameter in centimeters, the index of the fetus, number of fruit chambers. They were identified on the basis of data obtained from a number of promising products stam varieties: Gigant Shtambovji, Gigant Rose, Paradigma 2. These varieties have a unique combination of agronomic characters and can be used in the future as the parental forms for high value hybrids.