INFLUENCE OF NEMATODES ON ABSORPTION AND ACCUMULATION OF NUTRIENTS IN VETCH

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Abstract
Winter vetch (Vicia villosa) was grown in soil infested with either Meloidogyne hapla, Criconemoides curvatum, Scutellonema brachyurum, or Trichodorus christiei, or in nematode-free soil. Tops were har-vested at three 30-day intervals; roots at the end of 90 days. They were dried separately and analysed for Na, Ca, K, P, or N. The effect of the different nematodes upon the accumulation of these nutrients varied greatly. M. hapla induced the greatest changes in root tissue; T. christiei the greatest in shoots. N was the most seriously affected nutrient in roots and K in shoots. A correlation between gross pathogenicity and nutrient content was noted.

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