Effects of Irradiation and Cold Storage on Rooting and Growth of Chrysanthemum Cuttings

방사선조사와 저온저장이 국화 삽수의 발근 및 생육에 미치는 영향

  • Published : 2002.12.01

Abstract

This study was carried out to investigate the combined effect of cold storage with irradiation on rooting of chrysanthemum cuttings. Each cutting was six cm in length with three real leaves. A set of Groups of the cuttings was irradiated with 0 to 70Gy of gamma-ray after four weeks of cold storage, while another groups were irradiated with the same doses and then stored at $4^\circ{C}$ for four weeks. Root and shoot growth were observed at 15 and 20 days after planting of the cuttings in a Plug tray. Accelerated root formation was observed in 30 Gy irradiated group, and root growth was also enhanced in 20 and 30 Gy irradiated groups 20 days after planting. In case of irradiation combined with pre-treatment of cold storage, survival rate of cuttings was the highest (80%) in 30 Gy irradiated group. The groups treated with irradiation first before cold storage were apparently better in root formation, among which 50 Gy irradiated group showed the highest rate of root growth.

본 연구는 국화의 삽수 번식을 촉진할 수 있는 방사선의 적정선량 범위를 확인하고 저온저장과 방사선의 복합처리에 의한 영향을 알아보기 위해 수행하였다 삽수를 전개엽 3매, 길이 6cm로 균일하게 잘라 실험에 사용하였다. 네 주간의 저온저장 전과 후로 나누어 0∼70 Gy감마선을 조사하여 삽아하고 15일째와 20일째 발근 및 생육을 비교하였다. 그 결과 방사선 단일 처리에서는 30Gy 조사군이 높은 발근율과 빠른 근생장을 나타냈으며, 지하부 생육도 삽수 20일째 20, 30Gy 조사군에서 양호하게 나타났다. 저온저장 후 방사선을 조사한 경우 30 Gy 조사군에서 삽수의 생존율이 80%로 가장 높았다. 반면 방사선 조사후 저온저장을 시행한 경우 50Gy 조사군에서 지하부의 생육이 가장 높았으며 저온저장 후 방사선 조사를 한 실험군에 비해 지하부 생육이 우수하였다.

Keywords

References

  1. 農業伎術大系. v.6 花卉編..キク(クりサンセマム)社凰法人農山漁 大石 一史
  2. Agribiol.Res. v.48 no.2 The effect of low dose of gamma radiation on root formation of olive cutting A Bachir M.
  3. Hortscience v.25 no.4 Rooting of rhododendron Anna Rose Whiney cutting as related to trem carbohydrate concentration Christopher JF
  4. J.Amer.Soc.Hort.Sci. v.112 no.2 Physiological response of rhododendron cuttings to dfferent light levles during rooting Davis TD;JR Potter
  5. Plant Physiol. v.84 Altered gene expression during auxin-induced root development from excised mung bean seedlings Dhindsa RS;G.Dong;L.Lalonde https://doi.org/10.1104/pp.84.4.1148
  6. J.of Horticulture science v.58 no.1 The water economy of unrooted leafy cutting Grange RI;K.Loach https://doi.org/10.1080/00221589.1983.11515084
  7. J.Amer.Soc.Hort.Sci. v.95 The influence of auxin, catechol, and methanolic tissue extrats on root initiation in aseptically cultured shoot apices of the juvenile and adult forms of Hedera helix Hackett WP
  8. Plant propagation : Principles and Pratices Hartmann HT;DE Kester;FT Daries;RL Geneve
  9. IAEA Technical Report Series v.64 Effects of Low Doses of Radiation on Crop Plants International Atomic Energy Agency
  10. Health Physics v.52 no.5 Radiation hormesis in plants Miller MW;WM Miller https://doi.org/10.1097/00004032-198705000-00012
  11. Acta Hort. v.405 Cultivar differences with respect to storage potential and carbohydrate status of rooted chrysanthemum cuttings Rajapakea NC;JW Kelly
  12. J.Amer.Soc.Hort.Sci. v.121 no.4 Low tem perature storage of rooted Chrysanthemum cuttings : Relationship to carbohydrate status of cultivars Rajapakse NC;WB Miller;JW Kelly
  13. J.Amer.Soc.Hort.Sci. v.106 no.2 Importance of leaf retention to rooting of avacado cuttings Reuveni O.;M.Raviv
  14. Fiziol.Rast. v.17 no.6 Effect of gamma irradiation onthe activity of tryptophan synthetase in plant seedlings Revin AF;YV Vasiloi;AA Narimanov
  15. Plant Sci. v.162 Cloning and charaterization of an actin depolymerizing factor gene from grape(Vitis vinifera L.) expressed during rooting in stem cuttngs Thomas P.;J.Schiefelbein https://doi.org/10.1016/S0168-9452(01)00569-6
  16. Phytochemistry v.10 no.5 Effect of gamma irradiation on indole acetic acid synthesizing system in potatoes Ussuf KK;PM Nair https://doi.org/10.1016/S0031-9422(00)89920-3
  17. The control of growth and differentiation in plants Waring PF;DZ Phillips