The resistance of pumpkin crops to Meloidogyne (root-knot nematode)
The article presents the results of a study of various pumpkin cultures (muscat squash, foliage squash, hard-boiled squash, large-fruited squash, cucumber, loofah, momordica, anguria, lagenaria, squash, squash) for meloidoginosis (gall nematode) during the seedling period and during the growing season. A brief description of the types of nematodes, their effect on reducing yields and the quality of crop production is presented; types of pumpkin crops. In the seedling period, an assessment of the resistance to the gall nematode of 38 varietal samples of pumpkin cultures showed that some plants managed to form from 2 to 5 true leaves, others died during the formation of the first true leaf (lesion score was 8.8 - 9.0) - squash varieties Beloplodny, cucumber Antillean varieties Dietetic, hard-boiled pumpkin cultivars Golosemyannaya, large-fruited pumpkin variety 4020; the varietal specimen of the foliage pumpkin (in memory of Tarakanov) showed itself to be immune (0 points of damage), galls did not form on the roots of plants.During the growing season and fruiting of plants 16 varietal samples were selected with an estimate of up to 5.0 points for the development of meloidoginosis; one variety specimen showed itself to be immune - fig-leafed pumpkin in memory of Tarakanov, 4 variety specimens - highly resistant (large-fruited Savior pumpkin, hard-boiled pumpkin No. 2008 - 10, Aeronaut zucchini, cylindrical loofah No. 70), 6 variety-specimens - medium-sized (large pumpkin No. 17) 4778, hard-boiled pumpkin No. 3085, large-fruited pumpkin Hundred-pound, squash Sunny, momordika F1 Buba), the rest of the variety samples were highly susceptible.