강원도 벼 주산지에서 생태형별 이앙시기가 현미 품질에 미치는 영향

Effects of Transplanting-date on Brown Rice Quality between Ecotypes of the Major Rice-producing Areas in Gangwon Province

농업생명환경연구

2022, vol.34, 특별호 pp. 238-247 (10 pages)

DOI : 10.22698/jales.20220024

발행기관 : 강원대학교 농업생명과학연구원

연구분야 : 농수해양학 > 농학 > 농학일반 > 농업교육

초록

Recent changes in the climate of Korea show that the average rate of temperature increase is above 1.5°C, which is more than twice the global average temperature increase rate of 0.74°C, indicating that the rate of warming here is faster than that in other regions. These rapid climate changes demand a response strategy that include the development of adaptive varieties and cultivation techniques in agricultural ecosystems. The major rice producing regions of Gangwon-do are diverse and located in the central plains, northern plains, and east coast. To obtain the basic data necessary for resetting the cultivation methods to adapt to climate change, the yield quantity and yield components of rice were analyzed based on different ecological types and their transplanting period. In the central plain, the yield of early and middle maturing varieties increased with the increase in average temperature. The yields were not stable for the high-quality cultivation of mid-late varieties. However, the temperature rise did not affect the yields of the early, middle, and mid-late maturing varieties in the east coast region. In the central and northern plains, cultivation stability was confirmed only for the early varieties. Therefore, cultivation of the middle and mid-late varieties is not recommended for high-quality rice production and maintaining cultivation-stability. In the climate change scenario, quality and stability of cultivation are the priority factors that must be considered in rice cultivation areas.

키워드

Ecotype, High quality, Rice, Transplanting time, Variety