seriously limit the highbush blueberry yield in Latvia. Although mean levels of soil pH/ KCl and ECmeet requirements of soil standards, the samples with marginal values did not correspond to theoptimum for highbush blueberry growth and development.The results obtained on nutrient concentrations in wild blueberry soils revealed significantly lowerN, P, K, Ca, Mg, S, Fe, Mn and Cu levels compared with highbush blueberry soils. Particularly lowconcentrations were found for N and S in the woodland soils. This is not surprisingly becausenutrients in anion form are more leachable from light acid forest soils, as well as during the last 20years industrial emissions have been seriously decreased in Latvia (ěulko et al., 2008).Although both wild blueberries and highbush blueberries can be classified as typical calcifuges,since they thrive in nutrient poor soils with low pH (Korcak, 1989), wild blueberries showed anespecially high efficiency rate of K, Ca, Mg, Fe, Mn, accumulation in their leaves. Thisphenomenon can be considered as a potential wild plant physiological adaptation mechanism toinfertile soils.ConclusionsThe results obtained on the nutrition status of the highbush blueberry revealed the main problemsin plant supply with essential mineral elements in Latvia. Insufficient levels of N, P, Ca, Mo, B andincreased concentrations of Mn in highbush blueberry leaves were found to be the main problems.In spite of the high heterogeneity of the element concentrations in soils, the deficiency of N, Zn,Mo, B was found in a vast majority of samples analyzed. In general, our results suggest that onlyabout 40 % of plant leaf nutrient indices and soil tests were in the optimal range. Although forestsoils were characterized as acidic and a nutrient poor environment, wild blueberries showed anespecially high efficiency of K, Ca, Mg, Fe, Mn accumulation in their leaves. The presentinvestigation forms the basis for the development of ongoing scientific research and knowledgeabout blueberry fertilization practices in Latvia.References1. Eck P. (1988) Blueberry science. Rutgers University Press, N.J., 284 p.2. Ehlenfeldt M.K and Prior R.L. (2001) Oxygen radical absorbance capacity (ORAC) and phenolic andanthocyanin concentrations in fruit and leaf tissues of highbush blueberry. Journal of Agricultural andFood Chemistry, 49, pp. 2222-2227.3. Fuqua B., Byers P., Kaps M., Kovacs L., Waldstein D. (2005) Growing blueberries in Missuri. MissuriState University Bulletin, 44, 47 p.4. Hanson E. and Hancock J. (1996) Managing the nutrition of highbush blueberries. Michigan StateUniversity, Extension Bulletin E-2011, 46 p.5. Hanson E.J. (2006) Nitrogen fertilization of highbush blueberry. Acta Horticulturae, 715, pp. 347-351.6. Hart J., Strik B., White L., Yang W. (2006) Nutrient management for blueberries in Oregon. OregonState University Extension service EM 8918, 14 p.7. Kozanecka T., Chojnicki J., Kwasowski W. (2002) Content of heavy metals in plant from pollution-freeregions. Polish Journal of Environmental Studies, 11, pp. 395-399.8. Kuchko A.A. (1988) Bilberry and cowberry yields and the factors controlling them in the forests ofKarelia, U.S.S.R. Acta Botanica. Fennica, 136, pp. 23-25.9. ěulko I., Dubakova I., Frolova M., KovaĜevska A. (2008) Atmosfēras gaisa piesārĦojuma pārrobežupārneses ietekme uz <strong>Latvijas</strong> ekosistēmu (Transboundary air pollution effects on ecosystem of Latvia),<strong>Latvijas</strong> Vides, ăeoloăijas un meteoroloăijas aăentūra, Rīga, 43 p.10. Marschner H. (1995) Mineral nutrition in higher plants, Academic Press, London, 889 p.11. Nollendorfs V. (2004) Augsto krūmmelleĦu prasības pēc augsnes un mēslojuma (Highbush blueberrysoil and fertilization demands). Agropols, 12, Ražība, 6, pp. 8-10. (In Latvian).12. Percival C.D., Janes D.E., Stevens D.E., Sanderson K. (2003) Impact of multiple fertilizer applicationson plant growth, development, and yield of wild lowbush blueberry (Vaccinium augustifolium Ait.). ActaHorticulturae, 626, pp. 415-421.13. Pormale J., Osvalde A., Karlsons A. (2009) Investigation on the essential mineral element contents ofcultivated and wild blueberry fruits in Latvia. In Proc. of the International conference: Environmentallyfriendly and safe technologies for quality of fruits and vegetables, 14-16 January, Faro, Portugal (inpress).14. Pritts M. (2000) Blueberry nutrition on upland soils. New York Fruit Quarterly, 8, pp. 14-20.86
15. Reimann C., Kollen F., Frengstad B., Kashulina G., Niskavaara H., Englmaier P. (2001) Comparison ofthe element composition in several plant species and their substrate from a 1 500 000 km 2 area inNorthen Europe. The Science of the Total Environment, 278, pp. 87-112.16. Rinkis G., Ramane H., Kunicka, T. (1987) Methods of soil and plant analysis. Zinatne, Riga (inRussian).17. Smolarz K. and Mercik, S. (1989) Growth and yield of highbush blueberry Bluecrop cv. (VacciniumCorymbosum L.) in relation to the level of nitrogen fertilizer. Acta Horticulturae. 241, pp. 171-174.18. Strik B., Brun C., Ahmedullah M., Antonelli A., Askham L., Barney D., Bristow P., Fisher G., Hart J.,Havens D., Ingham R., Kaufman D., Penhallegon R., Pscheidt J., Scheer B., Shanks C., William R..(1993) Highbush blueberry production. Oregon State University Extension Service PNW 215, 80 p.19. Strik B. and Hart J. (1997) Blueberry fertilizer guide. Oregon State University Extension FG 78, 4 p.20. Strik B. (2005) Blueberry – an expanding world berry crop. Chronica Horticulturae, 45, pp. 7-12.21. USDA National Nutrient Database for Standard Reference (2006) Available at: www.nal.usda.gov/,04.03.2009.22. Trehane J. (2004) Blueberries, cranberries and other vacciniums, Timber Press, Cambridge, 256 p.EXAMINATION OF CORNEL (CORNUS MAS L.) FRUITS IN BORSOD-ABAUJ-ZEMPLEN COUNTY (HUNGARY)KIZILA (CORNUS MAS L.) AUGěU IZVĒRTĒŠANA BORSOD-ABAUJ-ZEMPLENAPGABALĀ (UNGĀRIJA)Eniko Prokaj, Anita Medve, Noemi Koczka, Attila Ombodi, Judit DimenySzent Istvan University, Faculty of Agricultural and Environmental Sciences, Institut of HorticulturalTechnology, Godollo, Pater Karoly ut 1. 2103. Hungary, e-mail: Prokaj.Eniko@mkk.szie.huAbstractThe domestication of cornel has already begun in the neighbour countries by the selection ofvaluable individuals. The spontaneously growing North-Hungarian specimens could be a goodmaterial for similar selection and domestication because foreign cultivars may not adapt to the dryclimate of Hungary. Fruit collectors are making from cornel berries delicious palinka (a kind ofspirit) and jam. The needs of the processing industry and the market is larger than the gathering canprovide, therefore the culturing of new cultivars would be favorable. Our purpose was to showthere are several valuable individuals in the Hungarian cornel population, which have outstandingqualities. We observed individuals growing in a natural habitat in 2006, measured the weight offruit, seeds, and the parameters of fruit length and width. The 19 samples were collected in theAggtelek Karsts and the southern slopes of Bükk hill. The measured fruits weighed between the 1.2– 2.85gramm, the seeds were 0.27 – 0.41gramm, so the calculated flesh ratios were average 72.93 –86.66 %. The average lengths of fruits were between 15.43mm and 20.02 mm, and the averagewidths of them were between 10.41 – 14.67 mm. Even in a small sample there can be foundvaluable fruit types for further examination, although it is necessary to observe a wider range ofsamples to find a good cultivar which is adapted to the local climate.KopsavilkumsKizila kultivēšana kaimiĦu valstīs ir sākusies ar vērtīgāko indivīdu atlasi. ZiemeĜungārijā spontāniaugošie eksemplāri varētu būt labs materiāls līdzīgai atlasei un kultivēšanai, jo ievestās šėirnesvarētu nebūt piemērotas sausajam Ungārijas klimatam. AugĜu vācēji no kizila ogām gatavo garšīgu“palinku”(alkoholiskā dzēriena veids) un ievārījumu. Pārstrādes rūpniecības vajadzības un tirgus irlielāks kā ogu vācēji var nodrošināt, tādēĜ jaunu šėirĦu kultivēšana varētu būt izdevīga. Mūsunolūks bija parādīt dažas vērtīgas ungāru kizila populācijas ar izcilu kvalitāti. 2006. gadā mēsnovērojām eksemplāru augšanu dabiskā vidē, nosakot augĜu un sēklu svaru un augĜu garuma unplatuma parametrus. Aggtelek Karsts un Bükk kalna nogāzēs tika savākti 19 paraugi. AugĜu masabija starp 1.2 – 2.85 g, sēklu masa 0.27 – 0.41 g, aprēėinātā augĜa mīkstuma masas attiecība pretsēklu masu bija vidēji 72.93 – 86.66 %. Vidējais augĜa garums bija starp 15.43 un 20.02 mm unvidējais platums bija 10.41 – 14.67 mm. Pat mazā paraugā varēja atrast vērtīgus augĜu veidus87
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Conference Organizing CommitteeChai
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15 Pormale J., Osvalde A. and Nolle
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were established in 1985. Nowadays,
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10,1-15 ha7%15,1-20 ha7%< 20,1 ha0%
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In less than half the surveyed farm
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economical and biochemical characte
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investigated European cranberry acc
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fruit of V. opulus has different am
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As several authors have stated (Koz
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KopsavilkumsVaccinium ăints kultū
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maintained in a mist chamber with v
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period and produce vigorous vegetat
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38. Marcotrigiano M. and McGlew S.P
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of changes in the typological struc
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fall from 2 to 3 and that for heath
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In literature Caruso eds. and Гop
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the total area under a cranberry ma
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Skilled works on development of the
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Tika atrastas dažas būtiskas ats
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appears to maintain a quite low lev
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8. Garkava - Gustavson L.,Persson H