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The Variation of Rice Growth and Yield According to a Rise in Temperature by Global Warming KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/319827
This study was carried out to confirm the effects of climate change to growth, yield and quality of rice by the global warming. By the study of Korea Meteorology Administration, the temperature of Korea increased 0.95℃ during last 34 years and the width of temperature increase be on an increasing trend gradually. As temperature increases, rice is faced with critical change such as growth duration shortening, heading acceleration, yield decrease and quality deterioration. So, we studied the rice growth and yield change by the temperature increase. To confirm the effects of temperature increase, rice cultivars such as early maturing Unkwangbyeo, medium maturing Hwayoungbyeo and late maturing Nampyeongbyeo were transplanted on 1, 15, 30 of June inner transparent vinyl house which was treated by different temperature. The increased mean temperature were 1.4℃～3.5℃, respectively, compared to outer field. The growth duration from transplanting to heading were shortened by the temperature increase. In June 1 transplanting, especially the growth duration of early maturing Unkwangbyeo was shortened greatly by temperature increase. As temperature increases, rice yield decreased in most cases. In 1.4℃ temperature increase, rice yield of June 15 transplanting were higher than those of other transplanting, but in 2.1℃ or more temperature increase, the rice yield of June 30 transplanting were similar or more than those of other transplanting.
