ISSN 1311-9109 Journal Content





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International Symposium
on Production and Establishment of Micropropagated Plants
April 19-24, 2015,
Sanremo, Italy


Propagation of Ornamental Plants
15(3): 95-100, 2015

ROOTING AND GROWTH AFFECTED BY PHYSIOLOGICAL CONDITION OF THE STOCK PLANT FOR CUTTING PROPAGATION OF ROSES

Chul Hwan Hwnag1, Dal Jin Sim1, Ji Eun Park1, Yoo Gyeong Park2, and Byoung Ryong Jeong1,2,3*

1 Department of Horticulture, Division of Applied Life Science (BK21 Plus), Graduate School of Gyeongsang National University, 660-701 Jinju, Korea
2 Institute of Agriculture and Life Science, Gyeongsang National University, 660-701 Jinju, Korea
3 Research Institute of Life Science, Gyeongsang National University, 660-701 Jinju, Korea *Fax: + 82-55-757-7542, *E-mail: brjeong@gmail.com



This study was carried out to investigate rooting of rose cuttings and subsequent growth as affected by flower bud removal from the flowering stem at different flowering stages and flowering stem age (i.e., flowering stage of the flower bud) of the stock plant. After harvesting, each individual stem was cut into single node cuttings, each with a five-leaflet leaf and an axillary bud. Effect of flower bud removal from the flowering stem at different flowering stages on cutting propagation can be summarized as follows: In ‘Sherbet’, there were little differences in overall growth, suggesting no effect of the flower bud removal on rooting and subsequent growth. In ‘Love Letter’, as the flowering stage increased, shoot growth increased, while root growth decreased. Effect of flowering stem age (i.e., flowering stage of flower bud) on cutting propagation can be summarized as follows: In ‘Sherbet’, fresh and dry weight of the cutting increased with age of the flowering stem, while number of roots, fresh, and dry weight of the cutting and the root decreased. In ‘Love Letter’, root growth at the 3rd flowering stage were low, and chlorophyll content, fresh, and dry weight of the cutting increased, while shoot growth decreased, with age of the flowering stem. These results suggest that growth of rooted cuttings was significantly affected by physiological condition of the stock plant.

Key words: cut rose, photosynthetic rate, root formation



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