Effects of Night Temperature Treatment of Raising Seedlings before Transplanting on Growth and Development of Pepper

육묘(育苗) 야간온도(夜間溫度) 처리(處理)가 고추의 생육(生育)에 미치는 영향(影響)

  • Seo Jin-Ug (Horticulture and Breeding Dept., Andong National University) ;
  • Hwang Jae-Moon (Horticulture and Breeding Dept., Andong National University) ;
  • Oh Sei-Myung (Horticulture and Breeding Dept., Andong National University)
  • 서진욱 (안동대학교 생명자원과학부 원예육종학) ;
  • 황재문 (안동대학교 생명자원과학부 원예육종학) ;
  • 오세명 (안동대학교 생명자원과학부 원예육종학)
  • Published : 2006.06.01

Abstract

This study was carried out to investigate effects of different night temperature treatments during nursery period on flower bud differentiation and growth of pepper cv. Cheongyang. Number of leaves, top fresh weight and top dry weight of pepper seedlings were increased with increasing the night temperature during nursery periods. And also flower bud differentiation and days to flowering were accelerated as increasing the night temperature. Plant height, stem diameter, branch length and intermode length of pepper after transplanting were height at the low night temperature ($28/11^{\circ}C$), but they were retarded at the high night temperature ($28/21^{\circ}C$) treatment. Number of lateral branches was significantly reduced at the high night temperature, but there was no a regular tendency in branching habit of the main stem by temperature treatments. Seedling growth before transplanting was retarded at the low night temperature but gradually recovered after transplanting into the plastic house. However, seedling growth at the high night temperature was shown in contrast to above response of the low night temperature.

풋고추(청양)의 육묘 온도를 주간온도는 같게 하고 야간온도를 달리하여 유묘의 화아분화와 생장 및 포장에서의 생장을 조사하였다. 육묘기간 중의 야간 온도가 높을수록 고추 묘의 엽수, 지상부 생체중 및 건물중이 증가하였고, 화아분화 및 첫 개화일은 단축되었다. 정식 후 초장, 경경, 분지장, 절간장은 저온구($28/11^{\circ}C$)에서 증가한 반면 고온구($28/21^{\circ}C$)에서 억제되었다. 측지수는 고온구에서 현저히 감소되었으나 온도 처리에 따라 주경에서 발달하는 1차분지의 수는 일정한 경향을 보이지 않았다. 고추 모종의 생장은 저온구에서 억제되었다가 하우스에 정식한 후부터 점차로 회복된 반면, 고온구는 이와 반대의 경향을 보였다.

Keywords

References

  1. Agrawal. M., D.T. Krizek, S.B. Agrawal, G.F. Kramer, E.H. Lee, R.M. Mirecki, and R.A. Rowland. 1993. Influence of inverse day/night temperature on ozone sensitivity and selected morphological and physiological responses of Cucumber. J. Amer. Soc. Hort. Sci. 118(5):649-654
  2. Choe, J.S., Y.C. Urn. Kang, and W.S. Lee. 1994. Effects of night temperature and nursery period on the quality of pepper (Capsicum annum L.) seedlings. J. Kor. Soc. Hort. Sci. 35:1-11 (in Korea)
  3. Erwin, J.E., R.D. Heins, and M.G Karlsson. 1989. Thermomorphogenesis in Lilium longiflorum Thunb. Amer. J Bot. 76:47-52 https://doi.org/10.2307/2444772
  4. Erwin, J.E. and G. Pierson. 1992. Interaction between dirunal temperature fluctuations and gebberellins on Lycopersicon stem elongation and chlorophyll content. HortScience 27:657
  5. Erwin. J.E., P. Velguth, and R.D. Heins. 1994. Diurnal temperature fluctuations affect Lillum cell elongation but not division. J. Expt. Bot. 45:1019-1025 https://doi.org/10.1093/jxb/45.7.1019
  6. Erwin, J.E. and R.D. Heins. 1995. Thermomorphogenic response in stem and leaf development. HortScience 30:940-924
  7. Fujimoto, T., K. Tsuda, and K. Tanaka. 1995. Studies on the grafting and planting by the plug system in summer tomato. Res. Bull. Gifuken Highland Agri. Exp. Sta. 5:1-22
  8. Kozai, T., S. Kushihashi, C. Kubota, and K. Fujiwara. 1992. Effect of difference between photoperiod and dark period temperature, and photosynthetic photon flux density on the shoot length and growth of potato plants in vitro. J. Jap. Soc. Hort. Sci. 61 :93-98 https://doi.org/10.2503/jjshs.61.93
  9. Lee, J.M. etc. 2005. Vegetable crops. p. 150, Hwyang Mun Co
  10. Lim, K.B., K.C. Son, and J.D. Chung. 1997a. Influences of difference between day and night temperature (DIF) on growth and development of bell pepper plants before and after transplanting. J. BioI. Prod. Facilities & Environment Control 6: 15-25 (in Korea)
  11. Lim, K.B., K.C. Son, and J.D. Chung. 1997b. Influence of DIF on growth and development of plug seedlings of Lycopersicon esculentum before and after transplanting. J. BioI. Prod. Facilities & Environment Control 6:34-42 (in Korea)
  12. Maynard, D.N., N.H. Lachman, R.M. Check, and H.F. Vernell. 1962. The influence of nitrogen levels on flowering and fruit set of peppers. Proc. Amer. Soc. Hort. Sci. 81 :385-389
  13. Park. H.Y., K.C. Son, E.G. Gu, and K.B. Lim. 1996. Effect of different day and night temperature regimes on the growth of hot pepper plug seedlings. J. Kor. Soc. Hort. Sci. 37:617-621 (in Korea)
  14. Richards, D., F.R. Goubran, and K.E. Collins. 1979. Root-shoot equilibria in fruiting tomato plants. Ann. Bot. 43:401-404 https://doi.org/10.1093/oxfordjournals.aob.a085649
  15. Rylski, I. 1972. Effect of the early environment on flowering in pepper (Capsicum annum L.). J. Amer. Soc. Hort. Sci. 97:648-651
  16. Si, Y. and R.E. Heins. 1996. Influence of day and night temperatures on sweet pepper seedling development. J. Amer. Soc. Hort. Sci. 121:699-704
  17. Song, C.Y. and J.S. Lee. 2003. Process of flower bud differentiation of Rhododendron mucronulatum, Rhododendron schlippenbachii, Forsythia koreana, and Syringa dilatata native to korea. J. Kor. Soc. Hort. Sci. 44:373-380 (in Korea)
  18. Toshimitsu, Y., T. Noguchi, and E. Nagamatsu. 1979. Study on the cultural technique of cucumber of lateral shoot type cultivars. Kyushu. Agri. Res. 41 :225
  19. Willumsen, K., T. Fjeld, and R. Moe. 1995. The effects of different day and night temperature regimes on growth, flowering, and keep ability of Begonia${\times}$hiemalis Fotsch. Gartenbau Wissenschaft 60:167-170
  20. Zieslin, N. and M.J. Tsujita. 1988. Regulation of stem elongation of lilies by temperature and the effect of gibberellin. Sci. Hort. 37:165-169 https://doi.org/10.1016/0304-4238(88)90159-8