VARIABILITY OF QUANTITATIVE CHARACTERISTICS OF THE BIOCHEMICAL COMPOSITION OF FRUITS OF A BLUEBERRY DEPENDING ON EDAPHIC AND METEOROLOGICAL FACTORS
The results of relative research of influence at fertilizer application NPK-compound (N<sub>16</sub>Р<sub>16</sub>К<sub>16</sub>) and of some microbial specimen of MaKlor, AgroMik and Baktopin on variability of 14 quantity indicators of a biochemical compound lowbush blueberry and half-highbush blueberry (cultivars Northcountry and Northblue ) within the limits of a biennial field experiment recultivated cutover peatlands in the north of Belarus in article are resulted. The least dependence for the content in fruits of dry matters, ascorbic acid and soluble sugars from an edaphic factor is revealed, the greatest - for an indicator sugar and acid index, an organic acidity and actually anthocyans. The highest resistance of a biochemical compound of fruits of a blueberry to mineral nutrition level characterised cultivar Northblue , by the lowest - V. angustifolium at mediate position of cultivar Northcountry . Degree of dependence of a biochemical compound of fruits from meteorological factors was appreciably defined by a form of fertilizings, a genotype of plants and the chemical nature of organic compounds. Integrated level of nutrient and vitaminic value V. angustifolium was characterised of the large resistance to meteorological factors (in 1,3 times), in comparison with half-highbush blueberry, especially with cultivar Northblue. It is shown that entering N<sub>16</sub>Р<sub>16</sub>К<sub>16</sub>, a liquid preparation of AgroMik and especially 50 % solutions of fertilising of MaKlor promoted weakening of dependence of a biochemical compound V. angustifolium from a vegetation period weather environment, in comparison with control. And entering 10 % solutions of a preparation of MaKlor in a combination with dry mycorhizal fertilising АМГ or a preparation Baktopin with АМГ, on the contrary, enhanced it in 1,6 times. The least similar dependence at cultivar Northcountry is revealed at sharing of preparations Baktopin and АМГ, whereas the greatest (with excess in 2,3 times) - at entering N<sub>16</sub>Р<sub>16</sub>К<sub>16</sub>. At cultivar Northblue intensifying in 1,3-1,7 times of dependence of a biochemical compound of fruits from meteorological factors against all tested field practices, especially with use of fertilising of MaKlor in 50 %' concentration is shown. Genotypic distinctions of degree of dependence of indicators of a biochemical compound of fruits of a blueberry from a hydrothermal regime of a season are revealed. It is established that influence of meteorological factors on sugar and acid index and the content in them ascorbic and hydroxycinnamic acids, pectic and tannins, catechols and flavonols at V. angustifolium of fruits in 1,1-4,7 times surpassed edaphic factor influence. The edaphic factor had stronger influence on accumulation in fruits of an lowbush blueberry of dry matters, titrable acids, both ingredients anthocyanin complex and total of P-vitamins in 1,5-2,1 times. For the content of soluble sugars in fruits of distinctions it is not revealed. For fruits of a half-highbush blueberry more expressed dependence of the content in them of dry and pectic materials, soluble sugars, flavonols, ingredients anthocyanin complex and total of P-vitamins from a hydrothermal regime of a season, rather than from a state of a mineral background in 1,2-4,1 times is revealed.