Soil bioassay and soil herbicide contamination are reviewed in this paper. The parameters for toxicity detection in soil and different test-systems are discussed
The article reflects the results of experimental studies in heterosis breeding of corn. We defined the common (CCA) and specific (SCA) combining ability of the new material. We also obtained the valuable inbreeding lines and testers of corn, created based on these new hybrids. The final step was the evaluation of hybrids and calculation of economic efficiency of their implementation. As a result of the work, it was allocated the three hybrid combinations of corn and suggested to examine them in strain testing
Results of three-years of examining the collection material of winter barley of different ecological-geographic origin are brought in this article. We have also allocated sources of high grain productivity, winter hardiness and precocity for further use in breeding programs
Such agrochemical and agrophysical properties of soils as base saturation degree, number of fine sand and dust fractions, as well as of physical clay limit the tea crop productivity in the Maykop region and in damp subtropics of Russia. Multiple regression models of their close influence on tea plantations productivity have been obtained
In the conditions of ordinary black-soil of West Caucasus region, efficacy of application of the Euro-Lightning herbicide in struggle with ambrosia artemisiifolia in crops of sunflower of the Sunay hybrid was studied
The experiments were conducted on bull-calf of Kazakh white breed at the age of 12 months. In the capacity of feed additives there were used "Yoddar-Zn", which consists of microelements as iodine and zinc in organic form, and the additive "Glimalask-Vet" based on organic acids (I gr.). A second group of animals received only a basic diet with "Yoddar-Zn» (II gr.) feed additives. In the organism of experimental groups of calves, the transformation proceeded more intensively for nutrient feed. This has contributed to increase the intensity of their growth, slaughter performance and the quality of the resulting beef. Bulls that received a ration feed additives had a live weight more on 35,9, and 20,4 kg, carcass weight after slaughter - at 22,27 and 11,47 kg, and the mass of flesh - at 20,9 and 8,50 kg., compared with the control. The average sample flesh of carcass fat content was higher by 1,25 and 0,74%, protein – 0,68 and 0,47%, iodine - at 39,30 and 26,71%. The animals of experimental groups in the edible portion of the carcass was synthesized as compared to control, more protein on 5,86 and 10,71% and energy - on 10,95 and 5,02%. The highest efficiency established at complex using both feed additives. Estimation of economic efficiency of use of these feed additives showed a decrease in cost and increase in profitability of beef production
Characteristic of chemical composition of varieties of grape cultivated in the Central zone of Krasnodar region and quality of juice produced from them is given in the article. Varieties for manufacturing of high-quality juices are recommended
The results of analysis of physical and chemical studies, biometrical traits, amylose and protein content in hybrid combinations, lines, varietal samples are presented in the article. 5 samples with high nutritional value were identified during our research
The features of growth dynamics on diameter of 120-160-year-old seed and second growth oak trees, allowing identifying accurately the origin on the nature of age-related trends are examined. Figures and diagrams are given for growth oscillations on the diameter of trees of seed and second growth origin for the entire period of their lives
In this article we present the results of the evaluation of 20 red currant varieties from NCRRIHV collection. Evaluation of varieties for commercial quality and biochemical composition of berries are presented