Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
권호 표지

Seed Setting and Viability and Fertility of Pollens in Families of Artificial and Natural Interspecific Hybrids in Lepidobalanus of Genus Quercus

참나무속의 인공 및 자연 종간잡종 가계의 종자결실 및 활력과 화분의 임성

  • Received : 2007.03.02
  • Accepted : 2007.03.28
  • Published : 2007.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Interspecific hybrid seedlings by artificial crossing of Genus Quercus (Q. serrata, Q. dentata, Q. mongolica var. crispula, Q. aliena) were planted at nursery in Tottori University. Seedlings of hybrids by natural crossing(Q. fabri and $Q.{\times}mccormickii$) were selected and planted at Hiruzen district in Tottori University. Artificial interspecific hybrid $F_1$ and natural hybrid $F_1$ bloomed when they were 4 years old and 3 years old, respectively. The pollen fertility and seed viability were investigated from the bloomed individuals in 2001. The germination percentages of the pollens of artificial interspecific hybrid were more than 84% except one individual, and the extension of pollen tubes was normal. The normal seed percentages of artificial interspecific hybrid were more than 90% similar to parents. Germination percentages of normal seed of natural crossing family were more than 64%, respectively, and selfed offsprings of Q. fabri, and $Q.{\times}mccormickii$ hade high reproductive ability.

참나무속(Q. serrata, Q. dentata, Q. mongolica var. crispula, Q. aliena)의 인공교배에 의 한 종간잡종의 묘목을 조취(鳥取)대학농학부 구내의 묘포장에 식재하였다. 또한 조취(鳥取)대학 산산(蒜山)연습림에서 자연교잡종(Q. fabri와 $Q.{\times}mccormickii$) 가계의 묘목을 선발하여 조취(鳥取)대학 산산(蒜山)연습림에 식재하였다. 인공종간잡종 $F_1$은 4년생, 자연교잡종 $F_1$은 3년생 때에 개화하였다. 2001년도에 이 중에서 개화한 개체로부터 화분과 종자를 채취하여 화분의 크기와 임성, 종자의 활력을 조사하였다. 인공종간잡종 화분의 발아율은 1개체를 제외하고 84% 이상이었고, 화분관의 신장도 양호하였다. 인공종간잡종의 건전한 종자의 발아율은 90% 이상으로 양친과 비슷한 높은 발아율을 보였다. 자연잡종 가계의 종자도 건전한 종자의 발아율은 각 가계의 평균이 64% 이상이었고, Q. fabri, $Q.{\times}mccormickii$의 자식종자도 높은 번식 능력을 유지하는 것으로 나타났다.

Keywords

References

  1. Hashizume, H.Z. Suo, J.H. Lee and F. Yamamoto. 1994a. Fundamental studies on the breeding of Quercus species(I). Flowering, pollination and seed bearing by artificial pollination. Trans. Jpn. For. Soc. 105: 321-324
  2. Hashizume, H.Z. Suo, J.H. Lee, S. Okada and F. Yamamoto. 1994b. Fundamental studies on the breeding of Quercus species(II). On the characters of leaves and fruits in natural hybrids among Q. dentata, Q. serrata and Q. mongolica var. grosseserrata. Trans. Jpn. For. Soc. 105: 325-328
  3. Hayashi, Y. 1969. Illustrations of Useful Woody Plants. 215pp. Seibundoshinkosha. Co. Ltd. Tokyo. Japan
  4. Lee, J.H., H. Hashizume and F. Yamamoto. 1996. Variations in flowering time, pollen morphology and fertility of Quercus dentata Thunb., Q. serrata. Thunb. Q. monogolica var. grosseserrata Rehder et Wilson and their intermediate types. Jap. For. Soc. 78: 452-456
  5. Kitamura, S. and G. Murata. 1979. Coloured Illustrations of Woody Plants of Japan(II). 268-269pp. Hoikusha Publish. Co. Ltd. Osaka, Japan
  6. Miyazaki, Y. (1988) Studies introgression and natural hybridization of oaks in Hokkaido. For. Tree. Breed. Hokkaido. Japan. 31: 5-8
  7. Okada, S.Y. Nakagawa and H. Hashizume. 1994. Hybridization of deciduous Quercus species in Chugoku mountain (I). A classification of leaf hair type by scanning-electron microscopy. Trand. Kansai Branch. Jpn. For. Soc. 3: 133-136
  8. Piatnisky, S.S, 1960. Evolving new forms of Oak by Hybridization. Prof. 5th World For. Congr. 2: 815-818
  9. Satake, Y.H. Hara. S. Watari and T. Tominari. 1989. Woody Flowers of Japan, Trees I. 70-72pp. Heibonsha Co., Ltd. Tokyo, Japan
  10. Stein-hoff, S. 1993. Results of species hybridization with Quercus rubra L. and Quercus pecraea(Matt) Liebl. Ann. Sci. For. 50 Suppl. 1: 137-143
  11. Ubukata, M.N. Itahana and K. Kahana. 1999. Cross-compatibility between Quercus mongolica var. grosseserrata and Quercus dentata and both the reproductive ability and flowering time of their interspecific hybrids. J. Jap. For. Sci. 81: 286-290