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가을 출하용 단옥수수 극만파재배시 파종기가 단옥수수의 생육과 수량에 미치는 영향 KCI 등재

Effect of Planting Dates on Growth and Yield of Late-planted Sweet Corn (Zea mays L.) to Sell Fresh Ears in the Autumn

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한국작물학회지 (Korean Journal of Crop Science)
한국작물학회 (Korean Society Of Crop Science)
초록

Fresh edible sweet corns demand relatively short period to harvest fresh ears, which can allow farmers to make a choice sweet corns for various cropping systems. For this reason, we were to find the optimum planting date of late-planted sweet corns to sell fresh ears in the autumn linked to cropping system with winter crops, investigating yield and properties of marketable fresh ears and growth traits of sweet corns (cv. 'Godangok' and cv. 'Guseulok') depending on planting dates such as 10 July, 20 July, and 30 July in Suwon 2012 and 2013, respectively. The 20 July-planted sweet corns showed the most fresh ear yield. However, the 10 July-planted and the 30 July-planted had 32% less yield caused by consecutive rainfall from 10 July through 20 July, and 15% less yield due to low air temperature during ripening than the 20 July-planted, respectively. The 10 and 20 July-planted sweet corns had average 140g of a fresh ear weight and 15% heavier ear than the 30 July-planted. For the July-planted sweet corns, silking days after planting (r=-0.80**), and harvesting days after silking (r=-0.97**) and planting (r=-0.91**) were highly negatively correlated with daily mean air temperature during the period, resulting in it takes 1,100 growing degree days (GDD) to harvest fresh ears from the July-planted sweet corns. The fresh ears of the 20 July-planted sweet corns are able to be harvested by early October. Therefore it will be a good choice for the cropping system based on winter vegetable cash crops such as temperate garlic and onion with medium or late maturity. Among three planting dates 20 July-planted sweet corns had the best field performance in every year considering fresh ear yield, ear size, and stability to grow.

목차
ABSTRACT
 재료 및 방법
 결과 및 고찰
  시험기간 중 강수량과 평균기온
  파종기별 단옥수수의 생육일수와 유효생육적산온도(GDD)
  파종기에 따른 단옥수수의 풋이삭 수량 반응
  파종기에 따른 단옥수수 상품 풋이삭의 특성 변화
  파종기에 따른 단옥수수 생육특성 변화
 적 요
 사 사
 인용문헌(REFERENCES)
저자
  • 신성휴(농촌진흥청 국립식량과학원 전작과) | Seonghyu Shin
  • 정건호(농촌진흥청 국립식량과학원 전작과) | Gun-Ho Jung Corresponding author
  • 김미정(농촌진흥청 국립식량과학원 전작과) | Mi-Jung Kim
  • 이진석(농촌진흥청 국립식량과학원 전작과) | Jin-Seok Lee
  • 손범영(농촌진흥청 국립식량과학원 전작과) | Beom-Young Son
  • 김정태(농촌진흥청 국립식량과학원 전작과) | Jung-Tae Kim
  • 배환희(농촌진흥청 국립식량과학원 전작과) | Hwan-Hui Bae
  • 김상곤(농촌진흥청 국립식량과학원 전작과) | Sang Gon Kim
  • 권영업(농촌진흥청 국립식량과학원 전작과) | Young-Up Kwon
  • 백성범(농촌진흥청 국립식량과학원 전작과) | Seong-Bum Baek