The Influence of Soil Characteristics and Sweet Potato (Ipomoea batatas L.) Varieties on Fiber Content

Won Park; Mi Nam Chung; Hyeong-Un Lee; Tae Hwa Kim; Su Jung Kim; Sang Sik Nam

doi:10.7740/kjcs.2022.67.3.172

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2022 Vol.67, Issue 3 Preview Page Next Page

Original Research Article

The Influence of Soil Characteristics and Sweet Potato (Ipomoea batatas L.) Varieties on Fiber Content 재배지역 토양특성과 고구마 품종의 섬유질 함량 차이

1 September 2022. pp. 172-179

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Abstract

Sweet potato varieties with high fiber content in the storage root have poor texture when steamed or roasted. This study investigates the difference in fiber content among sweet potato varieties by soil and climate. The average fiber content of ‘Hogammi’, ‘Sodammi’, ‘Pungwonmi’, ‘Danjami’, and ‘Jinyulmi’ cultivars from the samples collected at farms in Haenam, Muan, and Unbong, Korea were 95.71, 66.73, 44.55, 40.55, and 38.53 mg/100g FW, respectively. There was no significant difference between site-specific conditions and varieties. Based on the degree of visual fibrousness, ‘Hogammi’ has an average of 3.6-4.0 with many thick stringy fibers. The fiber content of the ‘Hogammi’ cultivar was measured across 19 sites representing the main sweet potato growing regions of Korea. The fiber content was between 115.82 and 114.6 mg/100g in Haenam 2 and Boryeong 1, and 87.46 mg/100g in Hamyang. However, the fiber content at the remaining 16 sites was within the range of 94.63-108.52 mg/100g, although there were some site-level differences. The fiber content of the sweet potato storage roots were positively correlated with soil phosphorus (R² = 0.58^**), organic matter (R² = 0.52^*), and pH (R² = 0.51^*), which had a significance of 1% and 5%. The fiber content of sweet potato storage roots was found to have increased with increasing phosphorus content, organic matter and pH in the soil. However, there was no correlation with the amount of precipitation, days of precipitation and hours of sunshine with the fiber content of sweet potato at the selected sites.

Keywords

cultivation region

fiber

soil characteristics

storage root

sweet potato varieties

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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 : 67
No :3
Pages :172-179
Received Date : 2022-06-06
Revised Date : 2022-08-16
Accepted Date : 2022-08-17
DOI :https://doi.org/10.7740/kjcs.2022.67.3.172

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

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