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Devolpment of Optimal Seed Production Methods Using Domestic Rye Cultivar in Jangsu Province

장수지역에서 국내육성 호밀품종의 채종재배기술 개발

  • Song, J.H. (Korea National College of Agriculture & Fisheries) ;
  • Han, O.K. (Jangsu Agricultural Technique Center)
  • 송주희 (장수군농업기술센터) ;
  • 한옥규 (국립한국농수산대학 식량작물학과)
  • Received : 2020.04.29
  • Accepted : 2020.06.12
  • Published : 2020.06.30

Abstract

The test conducted in this study was carried out for three years from 2013 to 2015 to investigate the optimal level of seeding amount and nitrogen fertilizer application to cultivate and produce the seeds of rye in Jangsu province, Jeollabuk-do. The variety of forage rye used in this experiment was 'Gogu', developed by National Institute of Crop Science, Suwon, Korea in 2004. The seeding rate was four levels (3, 5, 7 and 9 kg 10a-1, respectively) while nitrogen fertilized with respective amounts of 0, 3, 6, and 9 kg 10a-1. In Jangsu, the number of spike per m2 and lodging ratio were increasing, while fertility rate, 1 liter weight, 1000-grain weight and seed productivity were decreased by increasing of seeding rate from 3 kg 10a-1 to 9 kg 10a-1. There was an increase in the number of spike per m2, culm lengh, the number of grain per spike, lodging ratio and seed productivity, while productiove tiller, 1 grain weight, and 1 liter weight were decreased by increasing nitrogen fertilizer level from 3kg 10a-1 to 9 kg 10a-1. The best seeding rate and nitrogen fertilizer level for rye seed production were 5 kg and 6 kg 10a-1, respectively, considering plant lodging, seed and fertilizer reduction and the prevention of pollution by excess fertilization.

본 연구는 국내 호밀 종자의 자급률을 향상시키기 위해 전북 장수지역에 적합한 종자 채종기술을 개발하고자 2013~2015년까지 3개년에 걸쳐 시험을 실시하였다. 품종은 국내 육성종인 곡우호밀을 사용하였다. 시험구는 파종량 4수준(3, 5, 7, 9 kg/10a), 질소시비량 4수준(0, 3, 6, 9 kg/10a)으로 처리별 단요인 시험을 실시하였다. 시험구배치는 난괴법 3반복으로 하였으며, 생육특성과 종실생산성을 평가하였다. 장수지역에서 호밀 종자의 파종량을 10a당 3 kg으로부터 9 kg으로 증가시킴에 따라 m2당 이삭수·도복이 증가하였으며, 유효경수·임실률·리터중·1000립중 및 종실수량은 감소하였다. 질소 시비량은 10a 당 3 kg으로부터 9 kg으로 증가시킴으로써 m2당 이삭수, 간장, 1수립수, 도복 및 종실수량은 증가하였으며, 1립중 및 리터중은 감소하였다. 따라서 호밀의 종실수량, 파종용 종자 비용과 질소 과잉 시비에 따른 환경오염, 도복 등을 고려할 때 장수지역에서 호밀 종자생산을 위해 적합한 파종량은 10a당 5 kg, 질소 시비량은 10a당 6 kg로 추천되었다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 연구사업(세부과제 : 호밀 채종적지 선정 및 증수요인 분석, 과제번호 : PJ009224)의 지원에 의해 이루어진 것임

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