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http://dx.doi.org/10.7732/kjpr.2022.35.1.036

Germination Characteristics in Seeds of Broussonetia kazinoki Siebold ex Siebold & Zucc (Moraceae) Native to East Asia  

Kim, Gun Mo (Department of Horticulture and Breeding, Andong National University)
Chung, Jae Min (Division of Plant Resources, Korea National Arboretum)
Jung, Ji Young (Division of Plant Resources, Korea National Arboretum)
Choi, Hyeok Jae (Department of Biology and Chemistry, Changwon National University)
Lee, Seung Youn (Department of Horticulture and Breeding, Andong National University)
Publication Information
Korean Journal of Plant Resources / v.35, no.1, 2022 , pp. 36-43 More about this Journal
Abstract
This research was conducted to develop a seed propagation protocol for the use of Broussonetia kazinoki Siebold ex Siebold & Zucc, which native to East Asia. Light and temperature conditions, GA3 treatment, and low-temperature stratification were performed to evaluate the germination characteristics. The germination percentage at 4, 15/6, 20/10 and 25/15℃ was 0, 42. 5, 44. 4 and 91.7%, respectively. Thus, the optimal germination temperature of the B. kazinoki seeds was 25/15℃. Although germination was delayed by relatively low temperature conditions, GA3 treatment allowed for increased germination rates even under the low temperature conditions. Cold stratification reduced time to germination. Relatively low germination percentages at 20/10℃ and 15/6℃ indicated that the seeds had been under the state of conditional dormancy. Through this study, B. kazinoki seeds have conditional dormancy because they can be germinated through GA3 treatment even under relatively low temperature conditions and it is judged that it will support the commercial propagation practice in the future.
Keywords
Cold stratification; Dormancy type; $GA_3$; Moraceae; Propagation protocol;
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Times Cited By KSCI : 2  (Citation Analysis)
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