Relationship between Meteorological Elements and Yield of Potato in Goheung Area

고흥지방 기상요인과 감자의 생육 및 수량과의 관계

  • Published : 2001.06.01

Abstract

This study was conducted to investigate the relationships between yearly variations of elimatic elements and yearly variations of productivity in potato. In addition, correlation coefficients among yield and yield components were estimated. The data of yield and yield components were investigated for 9 years from 1987 to 1995. The meteorological data what gathered at the Goheung Weather Station for the same period of crop growing season were used to find out the relationships between climatic elements and crop productivity. Yearly variation of the daily minimum temperature in March and April were large with coefficients of variation (C.V.) of 126.0%,368.0%, respectively, but the variation of the daily mean and maximum temperature in May and June were relative small. Stem length and number of stem show more C.V. of 9.3% ,14.3%, respectively, but the variation of the yield was relative small with 3.7%. Correlation coefficients between the amount of precipitation in April and yield, yield and daily mean temperature in June were negatively significant at the level of 5, 1%, respectively. Correlation coefficients between the growth habits and yield are positively significant at the level of 5, 1%, respectively. Simple linear regression equations by the least square method are estimated for stem length $(Y_1)$ and the precipitation in April(X) as $Y_1=82.47-0.11{\times}(R_2=0.3959)$, and for yield$(Y_2)$ and the precipitation in April(X) as $Y_2=2003.61-0.94{\times}(R_2=0.5418)$.

1987년부터 1995년까지 전남 고흥군의 농가포장에서 감자의 주요특성과 재배기간중 관측된 기상자료를 이용하여 생육 및 수량과 기상요인과의 상관관계, 분석 및 수량추정식을 유도한 결과는 다음과 같다. 1.기상요인 중 변이가 큰 것은 3월과 4월의 최저기온으로서 변이계수는 각각 368.0%, 126.0%였으며 5, 6월의 평균기온, 최고기온 및 최저기온은 비교적 변이가 적 었다. 2. 생육 및 수량형질의 변이계수에서 수량은 3.7%로 매우 낮아 품종고유의 유전특성의 지배를 많이 받는 반면, 경장은 14.3%, 경수는 9.3%로 높아서 어느정도 환경요인에 영 향을 받는것으로 나타났다. 3. 4월의 강수량 및 6월의 평균기온과 수량간에는 부의 상관으로 나타났다. 4. 생육 및 수량간에 는 모두가 정의 상관으로 유의성이 인정되었으며 4월의 강수량을 이용하여 경장을 추정한 결과 $Y_1$: 82.47-0.11X ($R^2$=0.3959)의 직선 회귀식을 유도할 수 있었고, 역시 4월의 강수량을 이용하여 수량을 추정한 결과 $Y_2$: 2003.61-0.94X ($R^2$=0.5418)의 직선 회귀식을 얻을 수 있었으며 이들에 대한 분산분석에서도 유의성이 인정되었기에 수량에 대한 추정식을 이용하여 이론적 수량과 실제 수량의 오차를 구한 결과 값이 같아서 잘 적중되었다.

Keywords

References

  1. Korean J. Crop Sci. v.31 no.3 The relationship between meteorogical factors and rapeseed yield Byung Sun Kwon;Jung Il Lee;Hi Jin Park
  2. Sunchon Natl. Univ. Buill. v.12 The relationship between meteological environment and Mat rush yield Byung Sun Kwon
  3. Seungju Area. Korean J. Medicinal Srop Sci. v.2 no.1 Relationships between meteological factors and growth and yield of Alisma Plantago L Byung Sun Kwon;June Taeg Lim;Dong Hee Chung;Jong Jin Hwang
  4. Korean J. Crop Sci. v.27 no.4 Meteorological constraints and countermeasures in winter crop production Cho, C. H.;E. S. Lee;Y. W. Ha;J. I. Lee
  5. Korean J. Crop Sci. v.24 no.2 Effects of temperature and daylength on growth and grain yield in wheat Cho, C. H.;T. Y. Chung
  6. Korean J. Crop Sci. v.24 no.2 Studies on the effect of different of climatic environment during nursery period on rice growth and yield Choi, S. I.;C. J. Whang;S. P. Nho;D. G. Lee
  7. J. Agri. Sci. v.35 no.1 Effect of meteorological factors on the growth and yield estimation of barley in Chinju area Dae Ho Kim;Chung Hyo Heo;Dong Ju Kang;Yu Sik Lee
  8. Korean J. Crop Sci. v.27 no.4 Meteorological condition and pest management Hyun, Jai Sun
  9. Korean J. Crop Sci. v.22 no.2 Studies on the low temperature injury at seeding stages of newly developed rice varieties Lee, M. H.;T. G. Min;J. H. Lee;H. O. Choi
  10. Korean J. Crop Sci. v.27 no.4 Agriculture pollution and its countermeasures with special consideration of pesticides Li, Gwo Chen
  11. Korean J. Crop Sci. v.27 no.4 Effects of climatic condition on stability and efficiency of crop production Robert H. Shaw
  12. Korean J. Crop Sci. v.22 no.2 Influences of regional climatic factors on protein content and sedimentation value of wheat flour Ryu, I. S.;H. K. Shin;C. H. Cho;S. H. Bae
  13. Korean J. Crop Sci. v.27 no.4 Improvement in rice cultural techniques against unfavorable weather condition Ryu, I. S.;J. H Lee;Y. W. Kwon
  14. Korean J. Crop Sci. v.18 Analysis of the effects of some meteorolgical factors on the yield components of rice Seok Hong Park
  15. Korean J. Crop Sci. v.28 no.3 The relationship between meteorolgical factors and soybean seed yield Won, J. L.;Y. H. Choi;H. S. Song;S. H. Kwon