Effect of nitrogen nutrition on Fusarium wilt of tomato plants

A. R T SARHAN, B. Barna, Z. Király

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The role of nitrate‐nitrogen (NO3‐N) in relation to the development of tomato wilt caused by Fusarium oxysporum f. sp. lycopersici R1 was studied. Plants receiving 284 μg/ml nitrogen in the nutrient solution exhibited the same severe wilt symptoms as the control plants in soil. Disease decreased with increasing nitrogen levels (420, 630 and 1050 μg/ml). Apparently, the plants were also less susceptible to the disease when the concentration of nitrogen was 70 μg/ml, i. e. below the optimal level (284 μg/ml). Protein content in tissues of plants grown with different amounts of nitrogen was also determined. High nitrogen levels, which decreased disease severity, increased the protein content in leaf tissues. Of 17 amino acids only proline content increased with increasing nitrogen supply. High doses of NO3–N decreased the phenol content and the activity of peroxidase in stem and leaf tissues of tomato plants. It is suggested that phenolic compounds and the activity of peroxidase are not significant in the resistance of tomato to Fusarlum wilt associated with high nitrogen supply.

Original languageEnglish
Pages (from-to)245-250
Number of pages6
JournalAnnals of Applied Biology
Volume101
Issue number2
DOIs
Publication statusPublished - 1982

Fingerprint

Fusarium wilt
tomatoes
nutrition
nitrogen
peroxidase
protein content
Fusarium oxysporum f. sp. lycopersici
biological resistance
disease severity
signs and symptoms (plants)
phenol
nutrient solutions
plant tissues
proline
leaves
phenolic compounds
amino acids
stems
dosage
soil

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Effect of nitrogen nutrition on Fusarium wilt of tomato plants. / SARHAN, A. R T; Barna, B.; Király, Z.

In: Annals of Applied Biology, Vol. 101, No. 2, 1982, p. 245-250.

Research output: Contribution to journalArticle

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