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Original Research Article

Estimating the Yield of Potato Non-Mulched Using Climatic Elements

기상자료를 이용한 무피복 재배 감자의 수량 예측

Sung-Jin Choi1*
,
An-Soo Lee1
,
Shin-Jae Jeon1
,
Kyeong-Dae Kim1
,
Myeong-Cheol Seo2
,
Woo-Suk Jung3
,
Jin-Hee Maeng1
,
In-Jong Kim1
최 성진1*
,
이 안수1
,
전 신재1
,
김 경대1
,
서 명철2
,
정 우석3
,
맹 진희1
,
김 인종1
1Specialty Crops Research Institute, Gangwon ARES, Gangneung 210-851, Korea
2National Institute of Crop Science, RDA, Suwon 441-857, Korea
3Department of Applied Bioscience, Konkuk University, Seoul 143-701, Korea
1강원도농업기술원 특화작물연구소,
2국립식량과학원
3건국대학교
*Corresponding Author
31 March 2014. pp. 89-96
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Abstract

We aimed to evaluate the effects of climatic elements on potato yield and create a model with climatic elements for estimating the potato yield, using the results of the regional adjustment tests of potato. We used 86 data of the yield data of a potato variety, Sumi, from 17 regions over 11 years. According to the results, the climatic elements showed significant level of correlation coefficient with marketable yield appeared to be almost every climatic elements except wind velocity, which was daily average air temperature (Tave), daily minimum air temperature (Tmin), daily maximum air temperature(Tmax), daily range of air temperature (Tm-m), precipitation (Prec.), relative humidity (R.H.), sunshine hours (S.H.) and days of rain over 0.1 mm (D.R.) depending on the periods of days after planting or before harvest. The correlations between these climatic elements and marketable yield of potato were stepwised using SAS, statistical program, and we selected a model to predict the yield of marketable potato, which was y = 7.820×Tmax_1 - 6.315×Prec_4 + 128.214×DR_8 + 91.762×DR_3 + 643.965. The correlation coefficient between the yield derived from the model and the real yield of marketable yield was 0.588 (DF 85).

Keywords
potato
marketable yield
sumi
non-mulched
climatic elements
correlation coefficient
stepwise
modeling
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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 :1
  • Pages :89-96
  • Received Date : 2013-12-04
  • Revised Date : 2014-02-13
  • Accepted Date : 2014-02-20
  • DOI :https://doi.org/10.7740/kjcs.2014.59.1.089
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