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Variation in Seed Germination According to the Storage Period after Harvest in the Accessions of Perilla Species

들깨, 차조기 작물의 수확 후 저장 기간에 따른 종자 발아 변이

  • Sa, Kyu Jin (Division of Bio-resource Sciences, College of Agriculture and Life Science, Kangwon National University) ;
  • Hong, Tak Ki (Division of Bio-resource Sciences, College of Agriculture and Life Science, Kangwon National University) ;
  • Park, Dae Hyun (Division of Bio-resource Sciences, College of Agriculture and Life Science, Kangwon National University) ;
  • Lee, Ju Kyong (Division of Bio-resource Sciences, College of Agriculture and Life Science, Kangwon National University)
  • 사규진 (강원대학교 농업생명과학대학 생물자원과학부) ;
  • 홍탁기 (강원대학교 농업생명과학대학 생물자원과학부) ;
  • 박대현 (강원대학교 농업생명과학대학 생물자원과학부) ;
  • 이주경 (강원대학교 농업생명과학대학 생물자원과학부)
  • Received : 2018.01.18
  • Accepted : 2018.02.19
  • Published : 2018.03.31

Abstract

The present study aimed to understand the variation in seed germination according to the storage period after harvest in the accessions of cultivated and weedy types of Perilla species in Korea. In this milieu, we investigated the germination rate and germination energy of 59 Perilla accessions (15 cultivated var. frutescens type I, 4 cultivated var. frutescens type II, 20 weedy var. frutescens, and 20 weedy var. crispa), which were harvested in autumn 2016. The accessions of cultivated var. frutescens (type I) showed an average germination rate of 80.8% 6 months after harvest; however, the accessions of weedy var. frutescens and var. crispa showed an average germination rate of 0.9% and 8.7%, respectively. Furthermore, the accessions of cultivated var. frutescens (type II) showed an average germination rate of 18.2%. The accessions of cultivated var. frutescens (type I) showed an average germination energy of 75.8%, while the accessions of weedy var. frutescens and var. crispa showed an average germination energy of 0.6% and 6.9%, respectively. In addition, the accessions of cultivated var. frutescens (type II) showed an average germination energy of 14.3%. The germination rate and germination energy for the accessions of cultivated and weedy types of Perilla species increased marginally at 2 months from the first month after harvest. However, it did not significantly increase until six months after that. According to our results, there are two types of cultivated var. frutescens, namely, type I, which showed high germination rate and germination energy, and type II, which showed low germination rate and germination energy. The results of this study will provide basic information to understand variations in the germination of seeds during 6 months of storage period after harvest in the accessions of cultivated and weedy types of Perilla species in Korea.

우리나라에서 수집한 들깨와 차조기의 재배형 및 잡초형 계통들에 대하여 수확 이후 저장기간에 따른 종자발아율 변이를 이해하기 위하여 2016년 가을에 수확한 59개의 들깨, 차조기의 재배형 및 잡초형 계통(재배형 들깨 Type I 15계통, 재배형 들깨 Type II 4계통, 잡초형 들깨 20계통, 잡초형 차조기 20계통)들에 대하여 발아율 및 발아세 조사를 하였다. 수확 후 6개월 동안의 들깨와 차조기의 재배형 및 잡초형 계통들에 대한 발아율 조사에서 재배형 들깨(Type I)의 계통들은 평균 80.8%의 발아율을 보였으나, 들깨와 차조기의 잡초형들은 평균 0.9%와 8.7%의 발아율을 보였다. 또한 재배형 들깨(Type II)의 계통들도 평균 18.2%의 발아율을 보였다. 그리고 발아세의 경우도 재배형 들깨(Type I)의 계통들은 평균 75.8%를 보였으나, 들깨와 차조기의 잡초형들은 평균 0.6%와 6.9%를 보였으며, 재배형 들깨(Type II)의 계통들도 평균 14.3%를 보였다. 그 결과 들깨, 차조기의 재배형 및 잡초형 계통들은 수확 후 1개월째보다 2개월째에서 발아율 및 발아세가 다소 증가한 것으로 보였으나, 그 이후부터 6개월째까지는 크게 증가하지 않는 것으로 보였다. 이상의 결과에 의하면, 재배형 들깨의 경우는 2가지 Type, 즉 발아율이 높은 Type I과 낮은 Type II가 존재하는 것으로 밝혀졌으며, 차조기의 재배형 및 잡초형 계통들은 모두 발아율이 낮은 것으로 밝혀졌다. 본 연구결과는 오늘날 우리나라에서 재배되고 있는 들깨와 차조기 작물의 재배형 및 잡초형 계통들에 대하여 수확 후 6개월까지 저장기간에 따른 종자발아 변이를 이해하는데 기초정보를 제공할 것으로 생각된다.

Keywords

References

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