Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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The Effect of Cone Protective Net and the Morphological Variation of Cone and Seed of Korea Rare Endemic Pinus pumila Regel

희귀수종 눈잣나무의 구과보호망 효과 및 구과와 종자의 형태적 변이

  • Song, Jeong-Ho (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Lim, Hyo-In (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Jang, Kyung-Hwan (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Kim, Du-Hyun (Department of Forest Genetic Resources, Korea Forest Research Institute) ;
  • Son, Jang-Ick (Team of Park Resource Conservation, Seoraksan National Park Office)
  • 송정호 (국립산림과학원 산림유전자원부) ;
  • 임효인 (국립산림과학원 산림유전자원부) ;
  • 장경환 (국립산림과학원 산림유전자원부) ;
  • 김두현 (국립산림과학원 산림유전자원부) ;
  • 손장익 (설악산국립공원사무소)
  • Received : 2012.01.09
  • Accepted : 2012.06.04
  • Published : 2012.08.29
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Abstract

This study was conducted to investigate the effect of cone protective net and the variation of cone and seed characteristics of a unique and rare dwarf stone pine (Pinus pumila Regel) population in Mt. Seorak which is in the southern peripheral of South Korea. Iron protective net (50 mesh, 25 ${\times}$ 25 cm) was effective in reducing birds and rodents damage to conelet, thereby it was possible to safely collect seed genetic resources. Early July was observed to be the most appropriate season to cover conelet with Iron protective net. P. pumila have ovoid-triangle shaped, wingless seeds and indehiscent cones, seeds dissemination is mainly by the hoarding behavior of nutcrackers and rodents. Statistical analysis showed that there were significant differences among individuals within population, and the mean characteristics of the species were 35.3 mm, 25.6 mm, 1.38, 6.6 g and 39.3 ea in the cone length, cone width, cone index, cone weight and in number of seeds per cone, respectively. Coefficients of variations in seed weight and number of seeds per cone were relatively high (21.7%, 21.5%, respectively) compared to other traits. Based on the correlation analysis between cone characteristics and seed characteristics, the length of cone and seed showed a significant positive correlation with the seed size and the seed weight, but the width and thickness of seed showed a negative correlation with the number of seeds per cone.

국내 유일 설악산에만 분포하는 희귀수종 눈잣나무의 현지외 보존을 위한 종자수집에 따른 구과보호망의 효과와 수집된 구과와 종자의 형태적 특성 변이를 조사하였다. 철망으로 설치된 구과보호망(50 mesh, 25 ${\times}$ 25 cm)은 설치류나 조류 등의 피해를 방지할 수 있으며 안정적인 종자유전자원 확보가 가능한 것으로 나타났다. 특히, 7월 초순부터 설치하는 것이 처리효과가 매우 높은 것으로 나타났다. 눈잣나무 구과는 열개하지 않는 폐과이며 종자에는 날개가 없고 주로 잣까마귀와 설치류 등의 먹이저장 습성에 의해 종자가 산포된다. 구과의 형태적 특성 변이는 개체간 유의적인 차이가 인정되었으며, 평균특성은 구과길이 35.3 mm, 구과폭 25.6 mm, 구과지수 1.38, 구과건중 6.6 g, 구과당 종자수 39.3립을 각각 나타냈다. 종자는 삼각모양의 달걀형으로 날개가 없으며 개체간 유의적인 차이가 인정되었다. 평균특성은 종자길이 8.12 mm, 종자폭 5.81 mm, 종자지수 1.40,종자두께 4.62 mm, 종자무게 0.11 g을 각각 나타냈다. 변이계수 값은 구과건중과 구과당 종자수에서만 비교적 높은 21.7%와 21.5%를 각각 나타냈다. 구과와 종자특성 상관분석에서는 구과와 종자의 길이가 길어질수록 전체적인 크기가 커지고 모양이 길어지며, 무게도 많이 나가는 경향을 나타냈으며, 또한 종자폭이 넓고 종자두께가 두꺼울수록 구과당 종자수는 작아지는 부의 상관관계를 나타냈다.

Keywords

References

  1. Ahn, K.Y. 1971. Principal characteristics of Pinus parviflora S. et Z. native to the Dagelet Island. Jour. Korean For. Soc. 12:31-43 (in Korean).
  2. Critchfield, W.B. and E.L. Little. 1966. Geographic Distribution of the Pines of the World. U.S. Department of Agriculture Forest Service, Miscellaneous Publication 991, DC. pp. 1-97.
  3. Fu, L., Y. Xin and A. Whittemore. 2003. Pinaceae: In Fu, L., N. Li and R.R. Mill (eds.), Flora of China, Vol. 4, Science Press, Beijing and Missouri Botanical Garden Press, St. Louis, MO. pp. 11-52.
  4. Goncharenko, G.G., V.E. Padutov and A.E. Silin. 1992. Population structure, gene diversity, and differentiation innatural populations of cedar pines (Pinus subsect. Cembrae, Pinaceae) in the USSR. Plant Syst. Evol. 182:121-134. https://doi.org/10.1007/BF00939186
  5. Goncharenko, G.G., V.E. Padutov and A.E. Silin. 1993. Allozyme variation in natural populations of Eurasian pines. I. Population structure, genetic variation, and differentiation in Pinus pumila (Pall.) Regel from Chukotsk and Sakhalin. Silvae Genet. 42(4-5):237-246.
  6. Han, S.U. and J.S. Yi. 1996. Age-age correlation for height growth of open-pollinated progenies of Pinus koraiensis in relation to their cone and seed characteristics. Kor. J. Breed. Sci. 28(1):63-68.
  7. Hong, Y.P., H.Y. Kwon, B.H. Yang, S.W. Lee, C.S. Kim and S.D. Han. 2004. Genetic states of an isolated relict population of dwarf stone pine in Mt. Seorak. Jour. Korean For. Soc. 93(5):393-400 (in Korean).
  8. IUCN. 2011. IUCN Red List of Threatened Species. Version 2011.2. (2011.12.20.).
  9. Kajimoto, T. 2002. Factors affecting seedling recruitment and survivorship of the Japanese subalpine stone pine, Pinus pumila, after seed dispersal by nutcrackers. Ecol. Res. 17:481-491. https://doi.org/10.1046/j.1440-1703.2002.00505.x
  10. Kim, C.S., S.H. Han, W.Y. Lee, J.C. Lee, Y.K. Park and C.Y. Oh. 2005. Biochemical adaptation of Pinus pumila on low temperature in Mt. Seorak, Korea. Korean J. Plant Res. 8(3):217-224.
  11. Kong, W.S. 2006. Biogeography of native Korean Pinaceae. Journal of the Korean Geographical Society 41(1):73-93 (in Korean).
  12. Korea National Arboretum (KNA). 2009. Rare Plants Data Book in Korea. GEOBOOK Pub. Co., Seoul, Korea. pp. 83 (in Korean).
  13. Kwon, H.J., J.H. Gwon, K.S. Han, M.Y. Kim and H.K. Song. 2010. Subalpine forest vegetation of Daecheongbong area, Mt. Seoraksan. Kor. J. Env. Eco. 24(2):194-201 (in Korean).
  14. Lee, T.B. 1990. Dendrology. Hyangmoon Pub. Co., Seoul, Korea. pp. 75-77 (in Korean).
  15. Lee, T.B. 2006. Coloured Flora of Korea. Hyangmoon Pub. Co., Seoul, Korea. pp. 136 (in Korean).
  16. Lim, H.J. 1986. Taxonomical relationship of the five Pinus Species in the Subgenus haploxylon. Kor. J. of Breed. Sci. 18(4):358-373 (in Korean).
  17. Nakonechnaya, O.V., A.B. Kholina, O.G. Koren, V. Janecek, A. Kohutka, R. Gebauer and Y.N. Zhuravlev. 2010. Characterization of gene pools of three Pinus pumila (Pall.) Regel populations at the range margins. Russ. J. Genet. 46(12):1417-1427. https://doi.org/10.1134/S1022795410120033
  18. Okitsu, S. and K. Ito. 1984. Vegetation dynamics of the Siberian dwarf pine (Pinus pumila Regel) in the Taisetsu mountain range, Hokkaido, Japan. Vegetation 58:105-113. https://doi.org/10.1007/BF00044934
  19. Tani, N., N. Tomaru, M. Araki and K. Ohba. 1996. Genetic diversity and differentiation in populations of Japanese stone pine (Pinus pumila) in Japan. Can. J. Forest Res. 26(8):1454-1462. https://doi.org/10.1139/x26-162
  20. Watano, Y.W., M. Imazu and T. Shimizu. 1995. Chloroplast DNA Typing by PCR-SSCP in the Pinus pumila-P. parviflora var. pentaphylla complex (Pinaceae). J. Plant Res. 108:493-499. https://doi.org/10.1007/BF02344239

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