Development of Optimal Pruning Method on Okra (Abelmoschus esculentus L. Moench) Production

오크라 생산에 있어서 적정 적심방법 개발

  • Ahn, Yul-Kyun (Agricultural Research Center for Climate change, NIHHS, RDA) ;
  • Kim, Shun-Hwan (Agricultural Research Center for Climate change, NIHHS, RDA) ;
  • Seong, Ki-Cheol (Agricultural Research Center for Climate change, NIHHS, RDA) ;
  • Moon, Doo-Kyong (Agricultural Research Center for Climate change, NIHHS, RDA)
  • 안율균 (국립원예특작과학원 온난화대응농업연구센터) ;
  • 김천환 (국립원예특작과학원 온난화대응농업연구센터) ;
  • 성기철 (국립원예특작과학원 온난화대응농업연구센터) ;
  • 문두경 (국립원예특작과학원 온난화대응농업연구센터)
  • Received : 2011.02.11
  • Accepted : 2011.03.10
  • Published : 2011.03.31

Abstract

This study was conducted to develop an optimal pruning method for okra production. Three pruning methods were tested including apical bud removing, one-third removing from the top of plant, and no pruning as a control with 3 kinds interval for 15 days after 2 months sowing. The growth and development of okra was better at the treatment of one-third removing of plant than the others. The number of branches was 0.7 in control, 3.7~4.0 in apical bud removing, and 3.0~6.0 in one-third removing treatment. In summary, one-third pruning of plant from the top of plant at 30 days after starting of pruning treatment, which showed the highest yield by 12,910 kg/10a.

본 연구는 오크라의 적심기술을 확립하기 위해서 수행되었다. 오크라의 적정 적심시기 및 적심방법을 구명하기 위해 실험을 수행한 결과, 생육상황을 살펴보면 무처리구, 생장점을 제거하는 처리구 및 전체 식물체중 위로부터 식물체의 1/3을 제거하는 처리구를 비교해볼 때 식물체의 1/3을 제거하는 처리구가 l차, 2차 및 3차 처리시기에 관계없이 무처리구나 생장점 제거 처리구에 비해 생육이 좋았다. 측지수의 발생을 조사한 결과, 측지 수는 무처리구가 0.7개 였고, 생장점을 제거하는 처리구는 3.7~4.0개였고, 식물체의 1/3을 제거하는 처리구는 3.0~6.0개였다. 측지수가 가장 많은 처리구는 식물체의 1/3을 제거하는 처리구로 측지 수가 6.0개로 가장 많았다. 결과적으로 오크라 수확량이 가장 많은 처리구는 파종 후 2달 후 적심 처리 개시 30일 후에 식물체 위로부터 1/3 적심한 처리구로 수확량은 12,910kg이었다.

Keywords

References

  1. Dahniya, M.T., S.K. Hahn, and C.O. Oputa, 1985. Effect of shoot removal on shoot and root yields of sweet potato. Experimental Agriculture 21:83-186. https://doi.org/10.1017/S0014479700012345
  2. Ikeorgu, J.E.G, H.C. Ezumah, and T.A.T. Wahua. 1989. Productivity of species in cassava/maize/okra/egusi melon complex mixtures in Nigeria. Field Crops Research 2:1-7.
  3. Lamont, W. 1999. Okra a versatile vegetable crop. HortTechnology 9:179-184.
  4. Olasantan, F.O. 1986. Effect of apical debudding on growth and yield of okra (Abelmoschus esculentus). Experimental Agriculture 22:307-312. https://doi.org/10.1017/S0014479700014484
  5. Olasantan, F.O. 1988. Effect of leaf removal on the growth and yield of okra (Abelmoschus esculentus) and its relevance to leaf harvesting patterns and pest damage. Experimental Agriculture 24:449-455.
  6. Olasantan, F.O. 1999. Nitrogen fertilization of okra (Abelmoschus esculentus) in an inter-cropping system with cassava (Manihot esculenta) and maize (Zea mays) in south-western Nigeria. Journal of Agricultural Science, Cambridge 133:325-334. https://doi.org/10.1017/S0021859699007054
  7. Olasantan, F.O. 2001. Optimum plant populations for okra (Abelmoschus esculentus) in a mixture with cassava (Manihot esculenta) and its relevance to rainy season-based cropping systems in south-western Nigeria. Journal of Agricultural Science, Cambridge 136: 207-214. https://doi.org/10.1017/S0021859601008656
  8. Olasantan, F.O. and N.J. Bello. 2004. Optimum sowing dates for okra (Abelmoschus esculentus) in monoculture and mixture with cassava (Manihot esculenta) during the rainy season in the south-west of Nigeria. Journal of Agricultural Science, Cambridge 142:49-58. https://doi.org/10.1017/S0021859604004010
  9. Parr, W.J. and N.W. Hussey. 1962. Response of cucumber plants to different levels of artificial leaf damage in an attempt to simulate the effects of red spider mite. In Report of the Glasshouse Crops Research Institute for 1961, Vol. 1, p. 95-99. Glasshouse Crop Research Institute, Europe.
  10. Stacey, D.L. 1983. The effect of artificial defoliation on the yield of tomato plants and its relevance to pest damage. Journal of Horticultural Science 58:117-120. https://doi.org/10.1080/00221589.1983.11515098
  11. Tindall, H.D. 1883. Vegetables in the Tropics. McMillan AVI. p 325-327.