The experiments were performed during the two successive seasons of 2015-2016 and 2016-2017 at the Kazakh Research Institute of Potato and Vegetable Growing, Almaty Region, Kazakhstan. The experiment was aimed to study the efficiency of 117 different beetroot accessions for productivity and storability. To study the storability, 20 beetroot roots without any external sings of diseases were taken in two replications from each variety accession and left to be stored. The wet fresh weight of beetroots placed into storage varied from 132 g to 320 g depending on the shape and the size of roots. Beetroots were stored in polypropylene bags, which were placed on barred shelves 30-35 cm high. The storing temperature in autumn and spring period of time fluctuated from 3-5o to 6-8°, but in winter period it was 1-2°. The observed results showed that the gross yield of beetroot accessions ranged from 25.0 to 105.4 t/ha, marketable yield – 16.7 to 74.9 t/ha, marketability – 33.8 to 97.2%. Storability of beet roots mostly depended on accession genotype with different natural decrease of weight and root rot diseases. Natural decrease of weight varied from 0.0 to 12.3%, total losses from root diseases were from 0.0 to 90.0%. The analysis carried out showed that the link between yield capacity and storage characteristics was weak, R= -0,042-0,144. The correlation between storability and root rot was R = -0,516-0,644, that was stronger than it was in natural decrease of weight, R = -0.115.

The experiments were conducted in 2015-2017 on the experimental fields of the Kazakh Research Institute of Potato and Vegetable Growing located on the northern slope of the Zailiysky Alatau, 40 km to the west of the city of Almaty, under irrigation conditions. The aim of the research was a comprehensive field assessment of selective onion samples with sterile cytoplasm from onion Galantum and their derivatives – varietal-linear hybrids obtained by pollination with domestic cultivars. Visual assessment, which was conducted on the background of natural disease infection, showed that 20 accessions of onions had a very weak susceptibility to peronosporosis (1-10% of leaves); 63 – weak susceptibility (11-25% of the leaves); 91 - average susceptibility (26- 50% of leaves); 118 – severe susceptibility (more than 51% of the leaves). As the results of the research showed, onion accessions differed significantly in terms of productivity: the gross yield varied from 13,3 to 83,6 t/ha, the commodity yields ranged from 10,6 to 78,3 t/ha, and the marketability ranged from 65,4 up to 98,8%. Yield level above 70 t/ha had breeding accessions with sterile cytoplasm from onion Galanthum: ON518, ON533, ON519 and ON516, amounting to 83,6; 75,3; 74,2 and 73,4 t/ha, respectively. Very high marketability of bulbs had breeding accessions ON171 – 98,8%, ON439 – 97,6% and ON158 – 96,8%. The value of storage losses varied depending on the genotype of the selected onion breeding material. The greatest physiological reduction in weight was observed in the accessions ON517 – 32,1%, ON516 – 26,5%, ON533 – 24,2% and ON336 – 17,7%, and the lowest - in the accessions ON431 – 4,6%, ON486 – 4,0% and ON327 – 3,4%. The correlation analysis showed a weak relationship between the parameters of the onion yield and its storabilioty (R = -0,10-0,24). Storability was mainly due to the physiological reduction in weight (R = -0,59), bulb soft rot (R = -0,59) and bulb sprouting (R = -0,69).