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Effect of Brushing on the Growth, Yield, and Starch Contents of Spring Planted Potato(Solanum tubersoum L.)  

박용봉 (제주대학교 원예생명과학부)
문창준 (제주도 농업기술)
김용덕 (제주도 농업기술원)
Publication Information
Journal of Bio-Environment Control / v.13, no.2, 2004 , pp. 120-123 More about this Journal
Abstract
This study was conducted to investigate the effect of brushing on overgrowth inhibition, growth, yield and starch content in spring-grown potato in the netted house. The plant growth of aerial parts was inhibited with growth stage and brushing duration. Especially, The number of lateral branches decreased greatly with brushing duration. The stem length and stem diameter were not different significantly between brushing and non-brushing on May 6. But the stem length was long in later growth stage but short in longer brushing duration. Chlorophyll content by SPAD increased with growth stage regardless of non-brushing duration and ranged from 30 to 36 mg/$\textrm{cm}^2$. The fresh and dry weight of aerial part and tuber were heavy in longer brushing duration. Starch content was higher in brushing treatment as compared to non-brushing and increased with brushing duration.
Keywords
brushing; potato; mechanical stress; chlorophyll;
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