고구마 품종별 삽식 및 수확 시기에 따른 괴근 수량과 품질 특성

서지정보

ㆍ발행기관 : 한국국제농업개발학회 ㆍ수록지정보 : 한국국제농업개발학회지 / 28권 / 2호
ㆍ저자명 : 이형운, 이준설, 양정욱, 한선경, 남상식, 김재명, 안승현, 정미남, 송연상, 황엄지, 이경보

목차

재료 및 방법
시험재료
재배법
생육 및 수량성 조사
고구마 경도 측정
당도, 건물률 측정
전분 분리, 전분 함량 및 아밀로오스 함량 측정
전분 페이스트 점도 및 pasting 온도 측정
색도 측정
통계분석
결과 및 고찰
기상환경
고구마 삽식시기별 지상부 생육
고구마 삽식시기별 괴근 수량
고구마 삽식시기별 괴근 특성
적 요
REFERENCES

영어 초록

The effect of transplanting and harvesting dates on growth, yield, and quality of sweetpotato varieties was studied. Three sweetpotato varieties, Yulmi, Singeonmi, and Dahomi, were transplanted on 23 Apr., 21 May, 5 June, 15 June, 25 June, 5 July, 15 July, and 25 July. Fresh vine weight and marketable storage root yield of the three varieties were the highest in transplanting plots on 23 April and 21 May, respectively, and those tended to decrease when transplanting dates were late after May. GDD (Growing Degree Days) and cumulative radiation seemed to be related to marketable storage root yield. Number of marketable storage root per plant, average weight of marketable storage root, and marketable storage root yield were significantly different according to transplanting dates. Marketable storage root yield showed significantly positive correlations with fresh vine weight, number of marketable storage roots, and average weight of marketable storage roots. Hardness and dry matter content of storage root showed significantly positive correlations with starch content and decreased with late transplanting dates in Yulmi and Singeonmi varieties. Pasting temperature showed significantly positive correlations with soluble solid content, dry matter content, and amylose content, but it showed significantly negative correlations with breakdown. Setback was significantly different among varieties, but it was not significantly different in transplanting dates.

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