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Full-Text Articles in Life Sciences
Effect Of Dusts On Tomato Production, Walter Jacob Cox, L T. Jones, Dennis R. Phillips
Effect Of Dusts On Tomato Production, Walter Jacob Cox, L T. Jones, Dennis R. Phillips
Technical Bulletins
The phytotoxicity of bauxite, cement flue, mud lake, alumina and kaolin dusts were examined on tomatoes. Mud lake white dust caused severe leaf scorch, affected plant growth and resulted in no harvestable yield. Flue dust applied daily depressed market yield of fruit from 64 t ha to 42 t ha. Flue dust applied at 3.1 t ha had no effect. There was no phytotoxic effect from bauxite, alumina or kaolin.
Fluoride Toxicity In Grape Vines : A Case Study, Walter Jacob Cox, L T. Jones
Fluoride Toxicity In Grape Vines : A Case Study, Walter Jacob Cox, L T. Jones
Technical Bulletins
The onset of visual damage varied with the season. The symptoms consisted of marginal and tip necrosis in the early stages with the necrotic areas gradually expanding between the veins. In severe cases the leaves shed. Old leaves were affected first although foliage of any age was affected in cases of severe fluoride pollution. Plant analysis indicated that damage was associated with concentrations in excess of 20 ppm fluoride.