Dažu Vaccinium ģints sugu eksperimentālie un izpētes darbi baltkrievijā

Carrying out of the experimental and research works on the study of plants of genus Vaccinium in Belarus can be divided into several stages. The first stage is the study of biological and resource potential of wild-growing berry plants: cranberry (V. oxycoccus L), bog blueberries (V. uliginosum L.), lingonberry (V. vitis-idaeaL.), bilberries (V. myrtillus L.). The second stage is the introduction of the cultivars of large cranberry (V. macrocarpon Ait.), of highbush blueberry (V. corymbosum L.), of lingonberry under the conditions of Belarus to built the first experimental and industrial plantations. The third stage is the preparation of scientific manpower, the formation of scientific school, the development of production schedules of the estate berry culture. The fourth stage is the dilating of the assortment of Vaccinium taxa used in the culture and the augmentation of the areas of plantings under berrylike cultures

Augstkrūmu melleĥu ogu bioėīmiskā sastāva mainīgums

In this article the values of the coefficients of variation of 30 indicators of the biochemical composition of the fruits of the blueberry in a three-year cycle of supervision are presented. Signs with resistance against the complex influence of meteorological factors based on the level of the variability of traits are designated. On the basis of the comparative analysis of the averaged variation coefficients calculated for a varietal row of Vaccinium corymbosum L. during a long-term cycle of observation it has been established that the parameters of accumulation of solids, fructose, total soluble sugars, flavonols, total bioflavonols, benzoic acid, nitrogen, potassium, calcium and magnesium in fruits can be characterized by the smallest degree of genotypic variability and, consequently, of intervarietal distinctions, whereas the content of free organic acids, anthocyanins proper and the values of a sugar-acid index in fruits are characterized by the highest degree of genotypic variability

Genotypic distinctions of variability of biochemical composition of fruits of Vacciniaceae species under conditions of Belarus

Result of research of quantitative characteristics of biochemical composition of fruits of 30 taxons of 3 Vacciniaceae species (such as V. corymbosum L. (highbush blueberry), V. vitis-idaea L. (lingonberry) and Oxycoccus macrocarpus (Ait.) Pers. (cranberry)) inter-specific distinctions of a degree of stability of its separate components to complex influence of meteorological factors are revealed by 32 parameters (traits) describing the contents in fruits of some organic acids, carbohydrates, phenolic compounds, terpenoids and major mineral elements are presented. The cultivars possessing by the greatest and accordingly by the least levels of dependence on abiotic factors are identified

Comparative estimation of biochemical composition of fruits of Ericaceae species under conditions of Belarus

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 analysis of variability of economically valuable traits in lines of sunflower Helianthus annuus L. at breeding of varieties of silage purpose under the conditions of the Belarus Polesye

There was analyzed variability of period from sowing to flowering, plants height, main head diameter and the thousand-seed weight of sunflower lines I5, developed in a period of 2008-2014 on the basis of scientific-research laboratory of plant cell technologies under the conditions of the Belarus Polesye. The authentic distinctions between lines on all analyzed traits are established. Ranges of the variation of investigated traits of lines were within the limits of 68-71 days, 83.17-133.0 cm, 6.67-16.0 сm, and 18.27-42.43 g, respectively. By the one-factorial dispersive analysis there has been established the authentic influence (at P<0.01) of a genotype on variability of period from sowing to flowering, plants height and head diameter.В статье представлены результаты анализа изменчивости периода от посева до цветения, высоты растений, диаметра центральной корзинки и массы тысячи семян у линий I5 подсолнечника, созданных за период 2008-2014 гг. На базе НИЛ клеточных технологий УО “Полесский государственный университет” в условиях Белорусского Полесья. Диапазоны варьирования указанных признаков у исследуемых линий находились в пределах 68-71 дней; 83,17-133,0 см; 6,67-16,0 см и 18,27-42,43 г, соответственно. Однофакторный дисперсионный анализ установил достоверное при P<0,01 влияние генотипа на изменчивость периода от посева до цветения, высоты растений и диаметра корзинки