Growth and Heritability of Hinoki Cypress (Chamaecyparis obtusa) Families in Jeju

Choi, Hyung-Soon; Kang, Young-Je; Kim, In-Sik; Park, Young-Kyu; Ryu, Keun-Ok

doi:10.5532/kjafm.2012.14.4.236

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…Thus, it has been primarily selected as the reforestation tree species for climate change mitigation and timber utilization because it has excellent quality. In addition, its recently proven unique antibacterial property has prompted increasing public interest and demand on Chamaecyparis obtusa species reforestation for the expansion of forest healing, cultural and recreation activities (Choi et al 2012;KFS 2014). Furthermore, because the warmth index of the Republic of Korea has increased along with the changing climate, and has expanded the vegetative area limit of tree species for the warm temperate zone, it is expected that the reforestation area of Chamaecyparis obtusa in the Republic of Korea will be also expanded in the future (Park et al 2010b).…”

Section: Introductionmentioning

confidence: 99%

Effects of shading and fertilizer treatments on the growth characteristics of Chamaecyparis obtusa (S. et Z.) Endlicher seedlings

Kang¹,

Sung²,

Lee

2021

Forest Science and Technology

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Chamaecyparis obtusa is increasing the main reforestation species in the warmer southern part of the Republic of Korea because of its resistance to climate warming and economic value for timber. In this study, we investigated the growth response of Chamaecyparis obtusa 2-0 container seedlings to combined artificial shading (full sunlight, 35%, 55%, and 75%) and fertilization (no fertilization, 0.5 g/L, 1.0 g/L 1.5 g/L, 2.0 g/L, 3.0 g/L) treatments. Seedlings treated with 1.0 g/L fertilization and in full sunlight condition showed the highest height growth while seedlings treated with 0.5 g/L fertilization and in full sunlight condition showed the highest growth of root collar diameter. Seedlings treated with 1.0 g/L fertilization and in full sunlight condition showed the highest total dry weight while those treated with 0.5 g/L, 1.0 g/L and 1.5 g/L fertilization and in full sunlight condition and 0.5 g/L fertilization in 35% artificial shading showed the highest Height/Root collar diameter ratio. In addition, seedlings treated with 1.0 g/L fertilization and in full sunlight condition showed the highest seedling quality index. In general, the fertilization treatment effects on seedling growth characteristics were appreciably significantly different across the shading treatment conditions. The magnitude of the differences in the interaction effect of the fertilization treatments is higher in lower than in higher shading treatment conditions. The results suggest that 1.0 g/L seedling fertilization growing in full sunlight condition is the most appropriate nursery treatment level for producing superior quality Chamaecyparis obtusa 2-0 container seedlings. The suggested optimum artificial shading and fertilizer treatments level can be used as preliminary data for producing superior seedlings Chamaecyparis obtusa 2-0 container seedlings capable of achieving sustained reforestation and landscape restoration success in the southern part of the Republic of Korea and similar locations with warming climatic and conditions.

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Section: Introductionmentioning

confidence: 99%

Effects of shading and fertilizer treatments on the growth characteristics of Chamaecyparis obtusa (S. et Z.) Endlicher seedlings

Kang¹,

Sung²,

Lee

2021

Forest Science and Technology

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Container Types Influence Chamaecyparis obtusa Seedling Growth During Nursery Culture

조민석¹,

양아람²,

황재홍³

2014

Journal of Korean Forest Society

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The purpose of this study was to evaluate the effects of container types on seedling growth of Chamaecyparis obtusa (2-year-old) in the container nursery culture. We used three container types [20 cavities (400 mL/cavity, 150 seedlings/m 2 ), 24 cavities (320 mL/cavity, 200 seedlings/m 2 ), and 35 cavities (240 mL/ cavity, 260 seedlings/m 2 )] and measured root collar diameter (RCD), height, biomass, root density and seedling quality index (SQI). The RCD, height, biomass, root density and SQI were the highest at 20 cavities/tray because this container has the largest volume and lowest seedling density. However, H/D and T/R ratio at all container types were not significantly different. The total biomass per unit area (m 2 ) were the lowest at 35 cavities/tray and those at both 20 and 24 cavities/tray were not significantly different. Container volume was positively correlated with RCD, height, biomass, root density and SQI except for H/D and T/R ratio, while seedling density negatively affected on them. Based on these results, 20 cavities/tray are optimal for container seedling production of C. obtusa. Usage of optimal container will make us get better quality seedlings and reduction of production costs in the container nursery as well as good field performances with higher survival rate in plantation.

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Genetic Diversity and Physiological Response to Drought Stress of Chamaecyparis obtuse from Six Geographical Locations

Kim

Lee

Cho

et al. 2021

Plant Breed. Biotech.

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Growth and Heritability of Hinoki Cypress (Chamaecyparis obtusa) Families in Jeju

Cited by 3 publications

References 8 publications

Effects of shading and fertilizer treatments on the growth characteristics of Chamaecyparis obtusa (S. et Z.) Endlicher seedlings

Effects of shading and fertilizer treatments on the growth characteristics of Chamaecyparis obtusa (S. et Z.) Endlicher seedlings

Container Types Influence Chamaecyparis obtusa Seedling Growth During Nursery Culture

Genetic Diversity and Physiological Response to Drought Stress of Chamaecyparis obtuse from Six Geographical Locations

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