한국농림기상학회지, 제 3권 제1호(2001) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 3, No. 1, (2001), pp. 55~70
ⓒ Author(s) 2014. CC Attribution 3.0 License.


기후변화에 따른 벼 적정 등숙기간의 변동과 대책

윤성호, 이정택
농업과학기술원 농업환경부

(2001년 02월 15일 접수)

Climate Change Impacts on Optimum Ripening Periods of
Rice Plant and Its Countermeasure in Rice Cultivation

Seong-Ho Yun, Jeong-Taek Lee
National Institute of Agricultural Science and Technology, RDA, Suweon 441-707, Korea

(Manuscript received 15 February 2001)

ABSTRACT
It was unusual crop weather for 1998 and 1999 compared with normal in Korea. The consecutive days of the optimum ripening period for rice plant that had daily mean temperature 21~23$^{\circ}C$ 수식 이미지 for 40 days after flowering, increased with long anomalies in 1998~99. The air temperature during ripening period was much higher than the optimum temperature and lower sunshine hour than norm in the local adaptability tests of newly developed rice lines during those years. In response of rice cultivation to warming and cloudy weather during crop season, the yield shall be decreased. Most scientists agree that the rate of heating is accelerating and temperature change could become increasingly disruptive. Weather patterns should also become more erratic. Agrometeorologists could be analyzed yearly variations of temperature, sunshine hour and rainfall pattern focused on transient agroclimate change for last a decade. Rice agronomists could be established taking advantage of real time agricultural meteorology information system for fertilization, irrigation, pest control and harvest. Also they could be analyzed the characteristics of flowering response of the recommended and newly bred rice cultivars for suitable cropping plan such as cultural patterns and sowing or transplanting date. Rice breeders should be deeply considered introducing the characteristics of basic vegetative type of flowering response like Togil rices as prospective rice cultivars corresponding to global warming because of the rices needed higher temperature at ripening stage than japonica rices, photoperiod-sensitive and thermo-sensitive ecotypes.

Keyword: agroclimate change, rice, ripening of rice

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