In the article we have shown the results of the study of the treatment before laying hatching eggs for incubation, embryos at 6,12,18 days of incubation light bulbs CCB-15, CCB-30, OPL-150, DRT-400 at rates of embryonic development
In the article, the estimation of efficiency of selection on high tillering is given at various planting density. For the analysis used plants of variety Lampo with high tillering ability and varieties the Virazh and Ko-mandor - with weak tillering ability, and hybrid popu-lations F3 from their crossing, selected on traits high and low tillering from F2. Plants ¬ placed on plots in three variants: 2×15, 15×15, 30×30 cm. It is estab-lished that distinctions on tillering between “+” and “–” selection in following generation remain, though the value of given trait at hybrid plants decrease. Selection of highly tillering forms at usual density (2×15 cm) has shown high efficiency, because the tillering is caused by more influence of genetic factors, than environment in the given variant
In the conditions of Krasnodar region variety-rootstock combinations of plum Russian in the period of growth and fructification for the purpose of allocation of best of them for use in intensive technologies of cultivation are studied. The most weak, productive, fast-grown variety-rootstock combinations are allocated. They represent the greatest value for use in technologies of intensive type by production of fruits of Russian plum
In the conditions of the North Caucasus during aflatoxin B1 tolerant level in the ration it is desirable to breed the broiler chickens cross “Smena-4” and “Ross 308” adding toxi-nyl preparation in the amount of 2 kg/t
The positive effect of soybean oil meal in combination with biologically active substances on productivity and meat quality was determined in the experiments with young pigs
Value of new linear sorts allocated by the method of analytical selection from sort Stepnaya 7 in increase of adaptability of winter soft wheat is discussed. The new linear sorts: Line 15, AMMA, Line 21, Line 11, Line 26, Line 29, Line 36, Line 37 revealed combination of stability to brown and yellow rusts. Productive varieties with high quality of grain: Magnificent, Line 12, Line 38 have shown stability to a brown rust and poorly affected by other mushroom diseases
In the article, we have studied the effect of antibiotics on enzyme’s activity of black soil. Introduction of the high doses (600 mg/kg) of antibiotics benzylpenicillin, nystatin) leads to considerable decrease in enzyme’s activity of soils. The class of hydrolyses is most sensi-tive to the action of antibiotics, their activity decreases for 50-70% from control values, the class of oxidore-ductase is least sensitive (10-40%). Antibiotic’s action on enzyme’s pool of soils has the prolonged character
The introgression of race-specific blast resistance genes Pi-ta, Pi-b, Pi-z into genotype of Russian rice variety has been performed by backcross method with marker control of donor alleles. Plants that demonstrated maximal similarity with recurrent parental form, the short vegetation period and abundant panicle fertility have been picked up from BC3-population.
Marker analysis of developed population revealed the samples carrying introduced target genes in homozygote state
In the article, the data of researches of studying of elements of technology of cultivation of winter wheat, taking into account its high-quality features, types of fertilizers and application, joint crops with winter vick provided in the Rostov region, and also the economic assessment is given
Plant growing successes influence the effectiveness not only the branch in itself, but the other branches of agriculture, economics of agricultural enterprises in whole as well. In article the method of calculation of sufficient balance soil is considered.