Thus, as a result of biochemical screening of 30 taxons of Ericaceae species taking into account 32 parameters in a long-term cycle of observation it has been established the different degree of dependence of variability level of biochemical structure components of fruits of alien crops on genotype and a hydrothermal mode of the period of their maturing has been revealed. The similarity of parameters of genotypic variability of some traits of all investigated Ericaceae species is also revealed: low one – for the general contents in fruits of soluble sugars, flavonols, of potassium, calcium, magnesium and high one – for the contents of anthocyanins, and also the ratio of fractions of pectinaceous substances and bioflavonoids. Specific features of genetic determinacy of the analyzed traits, testifying the greatest degree of its displays of V. corymbosum for total accumulation of soluble sugars and bioflavonoids, flavonols contents, calcium and magnesium and by the lowest degree – for the contents of titratable acids, vitamin C, anthocyanins and values of a sugar-acid index were established. If to mention V. vitis-idaea L., the parameters of general accumulation in fruits of soluble sugars, dry substances and all major mineral elements were characterized by the greatest degree of genetic determinacy, whereas by the least degree – the contents of anthocyanins, catechines and tannins. If to mention V. macrocarpon, the parameters of accumulation in fruits of dry substances, nitrogen, potassium, calcium, phenol-carboxylic acids have been noted by the most expressed genetic determinacy, and by the least expressed – the contents of anthocyanins, sucrose and pectinaceous substances in fruits.

The article describes results of a comparative study of variability of 14 quantitative characteristics of biochemical composition of fruits in sort rows of 4 species of introduced varieties of Ericaceae (Oxycoccus macrocarpus, Vaccinium corymbosum) and Actinidiaceae (Actinidia arguta, Actinidia kolomikta) families, which has shown its lowest dependence on genotype in O. macrocarpus and the greatest dependence in A. arguta while the species studied have similarities in the level of genetic determinancy of a number of characteristics of fruits biochemical composition. It has been shown that the lowest stability in sort rows of both species of Ericaceae fam. is typical of parameters of accumulating anthocyanins proper and leucoanthocyanins while the greatest stability – that of ascorbic acid, which is characterized by high variability in both species of Actinidiaceae family. Most species of introduced plants studied have the lowest variability in sort rows in content of soluble sugars and total amount of bioflavonoids in fruits, while the greatest one – in sugar-acid index and tannins content. It has been found out that V. corymbosum and A. arguta have little dependence of flavonols content in fruits on genotype while V. corymbosum and A. kolomikta – that of pectin substances with a strong dependence of parameters of accumulating the latter in O. macrocarpus and A. arguta.

Приведены результаты сравнительного исследования в опытной культуре на выработанных торфяниках верхового типа в Смолевичском р-не Минской обл. и в расположенном на 250 км севернее Докшицком р-не Витебской обл. биохимического состава плодов сортов клюквы крупноплодной (Oxycoccus makrocarpus Ait. Pers.) -раннеспелого Ben Lear и позднеспелого Stevens. При внесении минерального удобрения Basacot Plus 6 и микробного препарата МаКлоР в 5-и 10 %-ной концентрациях, а также некорневых обработок Экогум-комплексом выявлены основные тенденции О б р а з е ц ц и т и р о в а н и я:

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