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Effects of Clipping on Growth and Yield in Sweet Potato  

김익제 (충북농업기술원)
손석용 (충북대학교 농과대학)
이재웅 (충북농업기술원)
유인모 (충북농업기술원)
이철희 (충북농업기술원)
김태수 (충북농업기술원)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.47, no.3, 2002 , pp. 143-146 More about this Journal
Abstract
This study was undertaken to learn what ratio of clipping top was the most optimum for minimizing of the decrease of root yield of over 50g in sweetpotato at early cultivation. The test variety was "Shinyulmi" which was transplanted for early cultivation on April 18. The ratios of cripping top were 5, 10, 15, 20, and 25 percents. The date of clipping top was June 20 when the shoots were transplanted for double cropping. The total length of vine, the number of branches per plant, the number of tuberous roots over 50g and average root weight over 50g were not affected by clipping top. The ratio of root yield over 50g was lower over 20 percents of clipping top. The fresh weights per plant of top and bottom were similar as compared control with 15 percents of clipping top. In conclusion, the optimum ratio of clipping top was 15 percents for maximizing of the production of the shoots in sweetpotato for double cropping. cropping.
Keywords
sweetpotato; clipping top; transplanting;
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  • Reference
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