Growth and Survival Rate of Softwood Cuttings Influenced by Bed Media, Cutting Length and Thickness on Several Cultivars of Highbush Blueberry
2008
Jung, J.H. (Kangnung National University, Gangneung, Republic of Korea) | Lee, B.Y. (Seoul National University, Seoul, Republic of Korea) | Kim, H.Y. (Kangnung National University, Gangneung, Republic of Korea) | Kim, H.K. (Kangnung National University, Gangneung, Republic of Korea) | Hong, S.J. (Kangnung National University, Gangneung, Republic of Korea), E-mail: [email protected]
Softwood cuttings were conducted to establish an efficient propagation method of highbush blueberry grown in shaded glasshouses during summer from year 2005 to 2007. When the cuttings were planted in peatmoss:sand (4:1) media survival rates of 'Bluejay' and 'Bluegold' were 52.8 and 71.5%, respectively. 'Sharpblue' was 85.5% when the cuttings were planted in peatmoss media. Growth and rooting were significantly improved when peatmoss was used as a major component of media comparing to combination of common bed soil, perlite, and vermiculite. Length of cuttings affected the survival rate, too and those for short cuttings (8-12 cm) and long cuttings (14-16 cm) of 'Bluegold' were 66.7 and 49.3%, respectively. 'Bluejay' cuttings showed the similar tendency, while the length of cuttings did not affect the survival rate of 'Sharpblue'. Improved rooting and consecutive growth was found when thick cuttings were used for 'Sharpblue' and 'Bluegold' and thin cuttings were used for 'Bluejay'. Results indicate that the survival rate, rooting and consecutive growth for softwood cutting were improved when shoot and thick cuttings were used the conditions of the present study.
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