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Collar rot in N.F.T. grown tomatoes






Acta Horticulturae (82): 151-152

Collar rot in N.F.T. grown tomatoes

A common problem with the nutrient film technique (NFT) is collar rot caused by salts passing up the blocks of growing medium, when these are placed in NFT canals. Soluble salts, especially N salts and phosphates, pass to the surface of the blocks and crystallize on the necks of the plants causing salt burns leading to constriction and restricting water uptake. Hollow stems result, with subsequent wilting and death.


Accession: 000318389



Related references

Wilson G.C.S., 1978: Collar rot in nutrient film technique grown tomatoes. Acta Horticulturae (Wageningen) (82): 151-152

Kreutzer, W.A.; Burrell, L.W., 1933: Collar rot of tomatoes. First observed in Colorado in 1931 on imported plants, collar rot, caused by the soil-borne fungus Macrosporium solani, which enters the succulent stems of seedling tomatoes and gradually destroys the outer tissues, is descr. and discussed with re...

Andrus, C.F.; Reynard, G.B.; Jorgensen, H.; Eades, J., 1942: Collar rot resistance in tomatoes. Collar rot or stem canker infection by Alternaria solani is distinguished from early blight or leaf infections caused by the same organism. A method of producing collar rot by artificial inoculation is described. The collar rot reaction is recorde...

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Solntseva, N.K., 1977: The role of nitrogen fertilizers in the nutrition of greenhouse-grown tomatoes and that of field-grown cucumbers. Tomato plants grown in fertile soil utilized 85-90% of N from the soil and only 10-15% from applied fertilizers; in cucumbers these figures were 75-81 and 19-25%, respectively. In tomatoes the addition of N fertilizers increased plant N uptake fro...

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