KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Evaluation of Rapeseed Seedling Quality According to Varieties and Seedling Ages for Spring Cultivation Transplanting

유채 봄 재배 기계이식을 위한 품종별 육묘 일수에 따른 묘소질 평가

  • An, Da-Hee (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Cha, Young-Lok (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Kim, Kwang-Soo (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA) ;
  • Shin, Woon-Chul (Research and Development Coordination Division, RDA) ;
  • Lee, Ji-Eun (Bioenergy Crop Research Institute, National Institute of Crop Science, RDA)
  • 안다희 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 차영록 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 김광수 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 신운철 (농촌진흥청 연구정책국 연구운영과) ;
  • 이지은 (농촌진흥청 국립식량과학원 바이오에너지작물연구소)
  • Received : 2021.05.28
  • Accepted : 2021.07.28
  • Published : 2021.09.01
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Abstract

Rapeseed (Brassica napus L.) is generally sown in late autumn and harvested in early summer in Korea, however, spring cultivation has also been attempted in some areas because frequent climate changes induce reducing productivity. Therefore, there is a need for a transplanting technology that is relatively easy to control of cropping season according to changes in cultivation conditions. In this study, to find out the optimal characteristics of seedlings for machine transplanting of spring cultivation, seedling morphological characteristics were investigated according to the seedling age of three varieties for 2020 and 2021. The hypocotyl length was less than 2 cm in both years and the 40-day-old seedling was the shortest among all seedling ages. The number and size of leaf were increased with longer seedling age in both years. To evaluate seedling quality, total seedling length, seedling weight, and impact resistance were measured before transplanting. Total seedling length was the longest in 40-day-old seedlings and the shortest in 25-day-old seedlings in both years. In the case of seedling weight, no significant differences were observed depending on the seedling age and the impact resistance increased with increasing seedling age. Finally, 'Jungmo7001', 'Naehan', and 'Tamla' showed a high transplanting rate in seedlings grown for more than 30 days, 35 days, and 40 days, respectively, in the field using a general transplanter. These results suggest that the proper seedling age for transplanting is limited depending on the rapeseed varieties. The suitable seedling cultivation method can be selected for different cultivation environments.

본 연구에서는 유채 3 품종별로 봄 재배 기계이식을 위한 최적의 유묘 특성을 구명하고자 2020년부터 2021년까지 2년간 육묘일수를 달리하여 하배축 길이, 본엽수, 엽장, 엽폭, 묘 전체 길이, 무게, 그리고 내충격도를 조사하였다. 뿐만 아니라 전자동 1조식 범용 채소 이식기를 이용한 이식률 및 이식 7일 후 생존율을 확인하였으며, 결과를 요약하면 다음과 같다. 1. 유채 3개 품종별로 25, 30, 35, 그리고 40일로 나누어 육묘한 후 유묘의 형태적 특성을 조사한 결과, 유묘의 하배축 길이는 2개년 모두 평균 2 cm 이하로 나타났고 40일 묘에서 짧은 하배축 길이를 보였으나 2020년에는 통계적 유의성을 관찰할 수 없었다. 엽수를 비롯한 엽장과 엽폭은 2개년 모두 육묘일수가 길어질수록 증가하는 것으로 나타났는데, 2020년 대비 2021년의 생육이 더뎠으며 전품종의 25일 묘에서 본엽 발생은 관찰되지 않았다. 2. 품종별로 위 육묘일수에 따른 묘 전체 길이를 조사했을 때, 2개년에서 40일 묘가 가장 길었고 25일 묘가 가장 짧은 결과를 보였으며 이는 통계적으로도 유의하였다. 묘 무게의 경우, 육묘일수에 따른 현저한 차이는 관찰할 수 없었으며 내충격도는 육묘일수가 짧을수록 낮게 나타났다. 3. 위와 같은 특성을 가진 유묘를 범용 이식기로 본 포장에 이식한 결과, 조생종 '중모7001'은 30일, 중만생종 '내한'은 35일, 그리고 만생종 '탐라'는 40일 이상 육묘할 때에 높은 이식률을 보이는 것을 확인하였다. 4. 기계이식률과 육묘일수를 비롯한 유묘 특성들 간의 상관분석을 통해 육묘일수, 잎의 크기, 그리고 유묘의 내 충격도는 이식률과 유의한 정의 상관을 보인다는 것을 확인하였다. 또한 유묘의 하배축 길이는 이식룰과 유의한 부의 상관으로 나타났다. 5. 이는 유채 봄 재배 기계이식을 위한 3품종별 최적 육묘일수 구명을 통해 재배 작기를 조절함으로써 유채 재배 시 습해 및 동해 등을 감소시킬 수 있을 것으로 사료된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 작물시험연구사업(과제번호: PJ01429001)의 지원에 의해 수행되었다.

References

  1. Blruggink, G. T. and E. Heuvelink. 1987. Influence of light on the growth of young tomato, cucumber and sweet pepper plants in the greenhouse: effects on relative growth rate, net assimilation rate and leaf area ratio. Sci. Hortic. 31 : 161-174. https://doi.org/10.1016/0304-4238(87)90043-4
  2. Calson, W. H., M. P. Kaczperski, and E. M. Rowley. 1992. Bedding plants. p. 511-550. In: R. A. Larson (ed.). Introduction to floriculture. 2nd ed., Academic Press, New York, NY, USA.
  3. Cho, Y. H., C. S. Kim, J. M. Kim, Y. G. Ku, and H. C. Kim. 2016. Qualities and early growth responses of paprika seedlings grown in high and low temperature. Korean J. Hortic. Sci. Technol. 34(5) : 719-726.
  4. Jo, S. M., K. Y. Jung, H. W. Kang, Y. D. Choi, J. S. Lee, and S. H. Jeon. 2016. Effect of seedling age on growth and yield at transplanting of sorghum (Sorghum bicolor L. Moench). Korean J. Crop Sci. 61(1) : 50-56. https://doi.org/10.7740/kjcs.2016.61.1.050
  5. Kang, D. H., D. E. Kim, G. I. Lee, Y. H. Kim, H. J. Lee, and Y. B. Min. 2012. Development of a vegetable transplanting robot. J. Biosyst. Eng. 37(3) : 201-208. https://doi.org/10.5307/JBE.2012.37.3.201
  6. Kemble, J. M., J. M. Davis, R. G. Gardner, and D. C. Sanders. 1994. Spacing, root cell volume, and age affect production and economics of compact-growth-habit tomatoes. HortScience 29 : 1460-1464. https://doi.org/10.21273/HORTSCI.29.12.1460
  7. Kim, K. S., Y. B. Kim, Y. S. Kim, Y. S. Jang, and J. K. Bang. 2007. Bioenergy crop production and research trends. J. Plant Biotechnol. 34(2) : 103-109. https://doi.org/10.5010/JPB.2007.34.2.103
  8. Kim, K. S., Y. S. Jang, Y. H. Lee, C. W. Kim, K. H. Choi, D. S. Kang, S. T. Kim, and I. H. Choi. 2014. A rapeseed intermediate parent 'Jungmo 7001' with wide adaptable and large flower. Korean J. Breed. Sci. 46(3) : 302-306. https://doi.org/10.9787/KJBS.2014.46.3.302
  9. Kim, S. K., T. W. Jung, Y. Y. Lee, D. Y. Song, H. S. Yu, C. W. Lee, Y. G. Kim, C. G. Kwak, and S. K. Jong. 2009. Effect of nursery stage and plug cell size seedling growth of waxy corn. Korean J. Crop Sci. 54(4) : 407-415.
  10. Kim, Y. S., Y. G. Park, and B. R. Jeong. 2019. Seedling quality, and early growth and fruit productivity after transplanting of squash as affected by plug cell size and seedling raising period. Protected Hort. Plant Fac. 28(3) : 185-196. https://doi.org/10.12791/KSBEC.2019.28.3.185
  11. Kwon, D. E., K. S. Kim, E. J. Hwang, J. C. Park, J. E. Lee, and Y. H. Lee. 2021. Changes in growth and productivity characteristics by sowing date on spring sowing rapeseed (Barassica napus L.) in paddy field of southern region on south korea. Korean J. Crop Sci. 66(1) : 80-86. https://doi.org/10.7740/KJCS.2021.66.1.080
  12. Lee, J. W. and K. Y. Kim. 1999. Effect of seedling age and transplanting depth on growth and yield of tomato. Korean Soc. Hortic. Sci. 40 : 412-415.
  13. Lee, Y. H., T. S. Lee, K. S. Kim, Y. S. Jang, and I. H. Choi. 2014. Effects of waterlogging stress on six korean rapeseed varieties (Brassica napus L.) during flowering stage. Korean J. Int. Agric. 26(3) : 284-291. https://doi.org/10.12719/KSIA.2014.26.3.284
  14. Lee, Y. H., W. Park, K. S. Kim, Y. L. Cha, Y. H. Moon, Y. S. Song, and J. E. Lee. 2017. Analysis of patent trends on value added technologies for rapeseed by-product in major producing countries. Korean J. Int. Agric. 29 : 356-365. https://doi.org/10.12719/KSIA.2017.29.4.356
  15. Lim, J. H., S. Y. Park, W. B. Chae, S. K. Kim, S. K. Choi, E. Y. Yang, M. J. Lee, G. B. Park, Y. A. Jang, M. H. Seo, and S. W. Jang. 2017. Seedling conditions for kimchi cabbage, head lettuce, cabbage and broccoli for a ridding-type transplanter. J. Biosyst. Eng. 42(2) : 104-111. https://doi.org/10.5307/JBE.2017.42.2.104
  16. Min, B. G., I. J. Ha, J. T. Lee, S. L. Choi, and S. D. Lee. 2016. The selection proper materials to develop specialized root substrate for working with bulb onion transplanter. Protected Hort. Plant Fac. 25(2) : 100-105. https://doi.org/10.12791/KSBEC.2016.25.2.100
  17. Nykiforuk, C. L. and A. M. Johnson-Flanagan. 1999. Storage reserve mobilization during low temperature germination and early seedling growth in Brassica napus. Plant Physiol. Biochem. 37(12) : 939-947. https://doi.org/10.1016/S0981-9428(99)00108-4
  18. Park, J. K., W. Y. Han, K. S. Han, J. S. Ryu, O. J. Won, T. U. Jeong, Y. H. Yoon, and J. W. Bae. 2020. Seedling soils and tray types mediate growth characteristics of perilla seedlings. Korean J. Crop Sci. 65(1) : 63-71.
  19. Rural Development Administration. 2012. Criteria for agricultural research and investigation. pp. 407-413.
  20. Vavrina, C. S. and M. Orzolek. 1993. Tomato transplant age: A review. Hort. Technology 3(3) : 313-316. https://doi.org/10.21273/HORTTECH.3.3.313
  21. Yeoung, Y. R., M. K. Jung, B. S. Kim, S. J. Hong, C. Chun, and S. W. Park. 2004. Effect of plug cell size on seedling growth of summer spinach. Korean J. Hort. Sci. Technol. 22(4) : 422-425.
  22. Zhang, C. H., I. J. Chun, Y. C. Park, and I. S. Kim. 2003. Effect on the inhibition of over-growth of plug seedling by triazole-type growth regulator treatment. J. Bio-Env. Con. 12(3) : 139-146.
  23. Zhang, J., F. Jiang, P. Yang, J. Li, G. Yan, and L. Hu. 2015. Responses of canola (Brassica napus L.) cultivars under contrasting temperature regimes during eaarly seedling growth stage as revealed by multiple physiological criteria. Acta. Physiol. Plant. 37(2) : 1-10. https://doi.org/10.1007/s11738-015-1782-2