Silicon deficiency of tomato plant

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Abstract Tomato plants were solution cultured with and without silicon, and Si deficiency symptoms were observed in the first bud flowering stage when the tomato plants had been cultured in a silicon-free solution; however, normal growth was observed in a solution with 100 ppm SiO2. To induce Si deficiency symptoms, it is necessary to culture the plant in a silicon-free solution under favorable conditions for the growth of tomato plant. Select the most suitable cultivar for the environmental conditions. Optimum temperatures with differences for day and night, high light intensity, sufficient aeration, and low planting density are key points in the development of a Si deficiency. Symptoms of Si deficiency may be summarized as follows: 1) The deficiency symptoms appear after the first bud flowering stage. 2) The leaflets of the new leaves showed malformations such as curving to the outside, warping, hardening, and sometimes thickening. 3) The growing poillt at the top was retarded in development, but did no...

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