The effect of Samorod and Orengum growth regulators on the adaptability of ornamental perennial grasses in the Southern Preduralye
The article presents data on the influence of biofertilizers Samorod and Orengum on the parameters of adaptability and decorative properties of groundcover ornamental crops in the Southern Preduralya. The research was conducted on the basis of the Orenburg Experimental Station of Horticulture and Viticulture of All-Russian Horticultural Institute for Breeding, Agrotechnology and Nursery in 2017 - 2019. The experience is based on three-fold repetition, three plants of each species. The objects of research are representatives of the Crassulaceae family: hybrid ochitok (Sedum hybridum), bent ochitok (Sedum reflexum), false ochitok (Sedum spurium). Root handling of plants was carried out by bio-fertilizers of Samorod and Orengum. The degree of damage caused by drought and low temperatures was assessed in accordance with standard guidelines of the all-Russian research Institute for fruit crop selection. To assess the degree of decorative groundcover perennial herbaceous crops were used the point system, the parameters of which served as components of decoration. It is revealed that application of organic fertilizers of Samorod and Orengum contributes to adaptive capacity and decorative qualities of the studied plants of the family Crassulaceae. It was found that the safety of plants after the winter period in the version with processing Samorod had 5 points, and in the version with the use of Orengum had 4 points. Using the developed decorative scale, the studied plants scored a total number of points, with the use of the agrochemical Samorod they had 21 - 22 poins, in the version with the drug Orengum they had 19 - 20 points. The maximum area of growth in the Samorod variant was observed in the bent ochitok (0.55 m2), which exceeded the control by 44.7 %. When using the drug Orengum, the growth area varied from 0.4 m2 (hybrid ochitok) to 0.5 m2 (false ochitok, bent ochitok), which exceeded the control by 21.2 %, 31.6 %, 25 %.