Influence of Potassium and Nitrogen Fertilization on Parasitism by the Root-knot Nematode Meloidogyne javanica

The influence of various c oncentrations of K, nitrogen sources, and inoculation with root-knot nematode Meloidogyne javanica were evaluated in tomato plants. Increased potassium concentration increased top and root fresh weights of intact plants and fresh weights of excised roots. Nitrate-fertilize...

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Veröffentlicht in:Journal of nematology. - 1969. - 14(1982), 4 vom: 16. Okt., Seite 530-5
1. Verfasser: Spiegel, Y (VerfasserIn)
Weitere Verfasser: Cohn, E, Kafkafi, U, Sulami, M
Format: Aufsatz
Sprache:English
Veröffentlicht: 1982
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article ammonium nitrate nutrition physiology potassium
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520 |a The influence of various c oncentrations of K, nitrogen sources, and inoculation with root-knot nematode Meloidogyne javanica were evaluated in tomato plants. Increased potassium concentration increased top and root fresh weights of intact plants and fresh weights of excised roots. Nitrate-fertilized plants weighed more than plants receiving ammonium independent of the K level in the medium. Nematode counts on roots were not affected by nutritional differences in intact or excised roots. In intact roots a high percentage of males was recorded at low K levels, whereas in excised roots the proportion of males in the population rose as the K levels increased. Inoculated intact roots accumulated K when the level of potassium supply was low; infected excised roots contained less K than did nematode-free roots 
650 4 |a Journal Article 
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700 1 |a Kafkafi, U  |e verfasserin  |4 aut 
700 1 |a Sulami, M  |e verfasserin  |4 aut 
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