Tag Archives: Vaccinium corymbosum

454-463 A. Karlsons, A. Osvalde, G. Čekstere and J. Pormale
Research on the mineral composition of cultivated and wild blueberries and cranberries
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Research on the mineral composition of cultivated and wild blueberries and cranberries

A. Karlsons*, A. Osvalde, G. Čekstere and J. Pormale

Institute of Biology, University of Latvia, Laboratory of Plant Mineral Nutrition, Miera street 3, Salaspils, LV-2169 Salaspils municipality, Latvia
*Correspondence: andis.karlsons@lu.lv

Abstract:

European cranberry (Vaccinium oxycoccos L.) and European bilberry (Vaccinium myrtillus L.) are among the most popular wild-harvested fruits in Latvia, traditionally used in folk-medicine and food. The commercial cultivation of American cranberry (Vaccinium macrocarpon Ait.) and highbush blueberry (Vaccinium corymbosum L.) was successfully started during last 20 years. With a berry production increase due to considerable hectarage of plantings and growing consumer interest in health-improving foods cultivated blueberries and cranberries have found a place in a daily intake as an excellent source of phenolic and nutritive compounds, vitamins and minerals. As the chemical composition of Vaccinium spp. has an important implication on human health, detailed information on the nutritional content of berries are of special importance. The aim of this study was to compare the contents of twelve biologically essential elements (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) in berries of four Vaccinium species: cultivated and wild blueberries (Vaccinium corymbosum and Vaccinium myrtillus) and cranberries (Vaccinium macrocarpon and Vaccinium oxycoccus). Together 136 (leaf and berry) samples were collected from 7 main cranberry and blueberry producing sites and 17 native woodland areas and bogs in Latvia. A comparison of wild and cultivated species showed similar concentrations for the macroelements K, Ca and S in cranberry and N, P in blueberry fruits. While statistically significant differences were found for N, P and Mg in case of cranberries and Ca, K, Mg and S for blueberries. The research revealed statistically significant differences of most micronutrients in cultivated and wild berries. Plant leaf and fruit analysis revealed the organ-specific distribution of mineral elements in all species studied. In most of the cases, leaf analysis supported concentration differences in fruits.

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511-516 M. Starast, N. Galynskaya, K. Jõgar, T. Tasa, K. Karp and U. Moor
Blueberry diseases survey in Estonia
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Blueberry diseases survey in Estonia

M. Starast¹, N. Galynskaya², K. Jõgar¹, T. Tasa³, K. Karp¹ and U. Moor¹

¹Estonian University of Life Sciences, Institute of Agricultural and Environmental Sciences,Department of Horticulture, Kreutzwaldi 1, 51014 Tartu, Estonia
²The Central Botanic Garden, National Academy of Sciences of Belarus, 2B Surganava St.,Minsk BY-220012, Republic of Belarus
³Plant Production Inspectorate, Teaduse 2, Saku, Harjumaa 75501, Estonia;e-mail: marge.starast@emu.ee

Abstract:

In Estonian University of Life Sciences at the Department of Horticulture a blueberry-cultivation project was started in 1997. Nowadays blueberry cultivation is developing into a promising activity for small farms and efforts have been made to maintain blueberries in the different regions of the country. Surveys were conducted to determine the occurence of diseases in commercial blueberry fields at three farms of South Estonia. One plantation was located on peat (abandoned peat pits) soil and two plantations on mineral soil. Pesticides were not used in the blueberry plantations. Diseases were observed at the end of harvesting time (late August) in 2006. Several lowbush blueberry (Vaccinium angustifolium Ait.), highbush blueberry (V. corymbosum L.) and half-highbush blueberry (V. corymbosum x V. angustifolium.) cultivars were represented. In all plantations several plant diseases were found whereby Pucciniastrum vaccinii Wint. occured often. Lowbush blueberry plants were more disease-resistant than highbush and half-highbush blueberries. In the plantation located on peat soil the infection of diseases was lower.

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