KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
권호 표지

Yield and Grain Quality of Early Maturing Rice Cultivars as Affected by Early Transplanting in Yeongnam Plain Area

영남 평야지 조생종 벼 조기재배가 수량 및 품질에 미치는 영향

  • Lee, Jong-Hee (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Park, Dong-Soo (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Kwak, Do-Yeon (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Yeo, Un-Sang (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Song, You-Chun (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Kim, Choon-Song (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Jeon, Myeong-Gi (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Oh, Byeong-Geun (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Shin, Mun-Sik (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA) ;
  • Kim, Je-Kyu (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
  • 이종희 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 박동수 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 곽도연 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 여운상 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 송유천 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 김춘송 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 전명기 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 오병근 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 신문식 (농촌진흥청 작물과학원 영남농업연구소) ;
  • 김제규 (농촌진흥청 작물과학원 영남농업연구소)
  • Published : 2008.09.30
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Abstract

This study was conducted to evaluate an early-maturing rice cultivars adaptable to early transplanting cultivation in Yeongnam plain area. High temperature during the ripening stage of paddy rice under the early-transplanting cultivation in Yeongnam plain was to influence in several agronomic traits such as number of spikelet, ripening ratio, grain appearance of milled rice, and yield. 'Gounbyeo' and 'Junghwabyeo' were better than the others in grain appearance of milled rice and ripening ratio, but their yield potential were lower than that of the other varieties. Moreover, 'Gounbyeo' and 'Junghwabyeo' showed high ratio of broken rice. 'Unkwangbyeo' was the highest in yield and eating quality among the tested varieties, but also high percentage of white core and belly in milled rice. Therefore, in order to recommend those cultivars to farmers, it should be needed to establish an optimal cultivation method, such as transplanting density, fertilizer application, and harvesting time, etc. consequently, it should also be required to develop a new varieties with high ripening capability under high temperature condition.

영남평야지 조기재배시 국내 육성된 고품질 조생종 품종들의 품질에 미치는 영향을 살펴본 결과를 요약하면 아래와 같다. 1. 공시품종들의 평균 출수기는 7월 22일로 8월 하순에서 9월 상순사이에 수확이 가능한 것으로 판단되었고, 공시품종들의 평균 수당립수, 등숙율 및 수량에서 품종간 유의한 차이가 있었으며, 운광벼가 수량이 529 kg/10a로 가장 많았다. 2. 수확시기별 현미 품위를 조사한 결과 동할미 발생을 줄이고 현미 정립율을 높이기 위해서는 출수 후 40일경에 수확하는 것이 정립은 8월25일$\sim$ 9월1일 사이 수확하는 것이 가장 높았으며, 수확시기가 늦어질수록 미숙립의 발생은 감소하고 동할립의 발생은 증가하였다. 백미 완전미는 중화벼와 고운벼가 72.2%와 71.0%로 높았으나 싸라기 발생이 높았으며, 운광벼와 오대벼는 분상질의 발생이 많았다. 3. 운광벼와 오대벼는 백미 단백질 함량은 6.4%로 낮았으며, 식미관능검정의 총평이 각0.6 및 0.5로 밥맛이 양호하였다.

Keywords

References

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