한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제68권1호
  • /
  • Pages.1-7
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  • 2023
  • /
  • 0252-9777(pISSN)
  • /
  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
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재식밀도변화에 따른 주요 벼 품종의 수량구성요소 변화분석

Change in Yield Characteristics by Transplanting Density in Major Cultivated Rice

  • 황운하 (농촌진흥청 국립식량과학원) ;
  • 이현석 (농촌진흥청 국립식량과학원) ;
  • 양서영 (농촌진흥청 국립식량과학원) ;
  • 이충근 (농촌진흥청 국립식량과학원)
  • 투고 : 2023.02.01
  • 심사 : 2023.02.21
  • 발행 : 2023.03.01
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초록

벼 품종별 재식밀도 변경 시 생육특성 변화를 분석한 결과는 다음과 같다. 1. 재식밀도 변경 시 간장, 수장의 변화는 없으며 각 포기 사이의 재식거리가 10 cm 넓어질수록 포기당 분얼수는 평균 4.4개, 이삭당 립수는 평균 7.5개 증가하였다. 2. 기존 80주 이앙 시 분얼수 및 립수가 많은 품종이 재식밀도가 감소되어도 분얼수 및 립수가 많은 경향이었다. 3. 재식밀도 감소 시 분얼수 및 립수 증가비율은 기존 80주 재배 시 품종의 분얼수 및 립수와 유의한 상관관계를 나타내지 않았다. 4. 재식밀도 감소 시 이삭지경의 개수 및 길이가 증가하였으며 이 때문에 이삭당 립수가 증가한 것으로 판단된다.

We studied the changes in growth characteristics of major cultivated rice in low- density transplanting. The culm and spikelet length did not change in low density transplanting conditions. As the distance between hills increased by 10 cm, the number of tillers per hill increased by an average of 4.4 and the number of grains per spikelet increased by 7.5. The cultivar that had more tillers and higher grain number in 80 hills per 3.3 m2 tended to have more tillers and grain in low-density transplanting conditions. However, the increase rate of tillers and grain in low-density transplanting was not significanty different from the tiller and grain number in 80 hills per 3.3 m2. The total branch number and branch length in spikelets increased in low-density transplanting conditions. The grain number per spikelet was also increased by the in low-density transplanting method.

키워드

과제정보

본 논문은 농촌진흥청 공동연구사업(국책기술개발사업, 과제번호: PJ01488601)의 지원에 의해 수행된 결과입니다.

참고문헌

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