THE STUDY OF COLLECTION SAMPLES OF TOMATO

Abstract

The object of the study was collection samples of tomato. The study period was 2019
and 2020. Place of the study was All-Russian Research Institute of Irrigated Vegetable and
Melon Growing, the branch of FSBSI «Precaspian Agrarian Federal Scientific Center of the
Russian Academy of Sciences», Kamyzyak, Astrakhan Region. Breeding has been carried out
since 1968 according to common methods. In 2019, 16 collection samples were studied. 11
seeds of individual plant selections were prepared for use in further breeding: D–12 – with an
ordinary type of bush 80–90 cm high, tough plum–shaped fruits, red color, weighing from 50
to 70 g, resistant to blossom end rot of tomato; D–14 – with a sprawling bush, 90–100 cm
high, large (up to 200 g) tough, yellow, round-shaped fruits; D–20 – with a high bush (up to
120 cm), with round-shaped pink fruits, 120 g weight; D–25 – plants of 160 cm high, ovalshaped yellow fruits weighing up to 200 g.
In 2020, 10 samples were studied. They differed in the type of plant, the length of the
main stem, the number of side shoots, the number of tassels on the main stem, the ability of
fruit setting on one plant. When studying the morphological and quantitative characteristics of
fruits, of particular interest are a CHS-OS sample with yellow-green large-sized fruits (152 g);
18–IR with fruits 33 g weight, round-shaped, dark red with anthocyanin color; sample 5-294,
which has a bull's heart shape crimson fruit, is used as a donor when creating gourmet varie
ties and sample 5-289 can be used when creating varieties with large plum–shaped yellow
fruit.