engleski

Xiphinema ssp. extension in different soil types of Istrian vineyards

Viticulture in istria, Croatia has s long tradition and great economical importance. Istra Countz had 6.420 hectares of vineyards in 2000, that was 11.6 percent total acreage of Croatian vineyards. The problem of nematodes was increasing steadily, therefore a research on Xiphinema ssp. was put in three wine growing areas (West, Central, East Istria) on different anthropological soil types – aric anthrosols. In West Istria wine growing areas aric anthrosols were middle deep or deep and loss red soil with slight inclination. central and East wine growing areas hed in certain areas mixed soil types (red andflzsch soil). All aric anthrosols had similar mechanical structure (over 30 percent clazy), soil profiles changed by deep ploughing, and stable chemical structure (some locations had increased potassium share). Aric anthrosols on flysch had more carbonates. During biannual research (1999, 2000) samples from 25 locations in 3 wine growing areas were collected and analysed. The larvae and adult females of genus Xiphinema were detection on 12 locations what implies that 48 percent researched vineyard were contaminated (44% red and 4% flysch aric anthrosols). Results showed high contamination on red aric anthrosols, which are the most important for Istria, s viticulture (West area). Therefore a systematic research should be continued resulting with a map of nematodes Xiphinema extension

Xiphinema spp. Istra ; soil types

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