Effects of Varieties,  Growth Duration,  and Topping for Occurrence of Skin Ridge on the Tuberous Root in Sweet Potato (Ipomoea batatas Lam.)

Kyu-Hwan Choi; Young-Jin Yu; Hyo-Jin Kim; Chan-Ho Kang; Jong-Sung Jeong; Young-Ju Song; Chung-Kon Kim; Seung-Yeop Lee

doi:10.7740/kjcs.2014.59.2.194

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Original Research Article

Effects of Varieties, Growth Duration, and Topping for Occurrence of Skin Ridge on the Tuberous Root in Sweet Potato (Ipomoea batatas Lam.) 고구마 품종, 생육기간 및 경엽제거가 피맥발생에 미치는 영향

30 June 2014. pp. 194-200

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Abstract

Skin ridge (SR) is a irregular line shape that stand out in epidermal layer on sweet potato (Ipomoea batatas Lam.). SR reduced marketable value of storage root in sweet potato. It would be occurred by accumulation of starch in epidermal layer. SR rate was more highly increased in early planting. SR rate was under 3% in 7 varieties ‘Geonpoongmi’, ‘Yeonhwangmi’, ‘Geonmi’ etc and the rate of two varieties ‘Healthymi’, ‘Borami’ were up to 30%. SR rate was positively correlated with vine weight. SR rate was the highest in 120 days after planting. As leaf area index was reduced to 3, 4, 5 and 6 (non-topping) by topping, it was hard to fine SR occurrence in topping treated sweet potato. Topping treatment, however, caused decrease in yield overall. Therefore, topping treatment for decreasing of SR was not recommended in agricultural practice of sweet potato.

Keywords

sweet potato (Ipomoea batatas Lam.)

skin ridge

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Information

Publisher :The Korean Society of Crop Science
Publisher(Ko) :한국작물학회
Journal Title :The Korean Journal of Crop Science
Journal Title(Ko) :한국작물학회지
Volume : 59
No :2
Pages :194-200
Received Date : 2014-03-31
Revised Date : 2014-05-27
Accepted Date : 2014-05-28
DOI :https://doi.org/10.7740/kjcs.2014.59.2.194

The Korean Journal of Crop Science ISSN:0252-9777(Print) 2287-8432(Online) 한국작물학회지

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