Abstract

The objectives of this study were to identify the period of initiation of floral primordia in black locust (Robinia pseudoacacia L.) and subsequent development of floral buds until following spring. Four mature trees of black locust located in Suwon, Korea were selected. Bud samples were collected from the current-year shoots, starting from mid June to July every week, from August to October and from February to April every month. The buds were fixed in FAA solution, dehydrated, and imbedded in paraffin for microscopic observation. Buds collected on June 16, and 23, 1997, contained primitive primordia that might be interpreted as early floral primordia. By June 30, a bud showed a positive indication of inflorescence primordium with a well-formed shoot apex. All the inflorescence primordia observed throughout the collection periods were always associated with unique hairy appendages around the primordium and enclosed within a sclerenchymatous chamber. By July 7 and 15, a floral apex had early bud scales. By July 22, primitive inflorescence developed into visible arrangement of individual floral primordial By July 29, the inflorescence developed into whirl arrangement of individual floral primordia in a transverse section, but showed little further development until October 15. The inflorescence primordia seemed to over-winter at this stage. Buds collected from February 15 and March 24 the following year also showed no further development of inflorescence primordia. By April 7 the inflorescence started to show further development with elongated axis. At this time individual flowers were easily recognized.

주제어

#flowering   #floral primordium   #floral apex   #inflorescence  

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참고문헌 (19)

1. Jensen, W.A. 1962. Botanical Histochemistry. Freeman Co 
2. King, R.W. and L.T. Evans. 2003. Gibberellins and flowering of grasses and cereals: Prizing open the lid of the florigen black box. Ann. Rev. Plant Biol. 54: 307-328 
3. Matthews, J.D. 1963. Factors affecting the production of seed by forest trees. For. Abstract 24: 1-13 
4. Kramer, P.J. and T.T. Kozlowski. 1979. Physiology of Woody Plants. Academic Press, New York, N.Y. 811p 
5. Hanover, J.W 1993. Black locust: An excellent fiber crop. p432-435. In J. Janick and J.E. Simon (eds.) New Crops. Wiley, New York 
6. Hanover, J.W, K. Miller, and S. Plesko (eds). 1992. Proc. Intern. Conf. on Black Locust Biology, Culture, and Utilization. June 1991. Kellogg Center for Continuing Education, Michigan State University, East Lansing, Michigan 
7. Redei, K., Z. Osvath-Bujtas, and K.J., Lee. 2002. Selection and management of black locust (Robinia pseudoacacia L.) in Hungary for timber and honey production and landscape. J. Korean For. Soc. 91: 149-156 
8. Bongarten, B.C. 1992. Genetic variation in black locust within its native range. In J. W. Hanover, K. Miller, and S. Plesko (eds). 1992. Proc. Intern. Conf. on Black Locust Biology, Culture, and Utilization. June 1991 Michigan State Univ. East Lansing, Michigan. p78-97 
9. Owens, J.N., and M. Molder. 1974. Bud development in western hemlock. II. Initiation and early development of pollen cones and seed cones. Can. J. Bot. 52: 238-294 
10. Kim, J.H. 1986. Introduction to Pomology and Horticulture. 3rd ed. Hyangmunsa, Seoul, Korea. 362p 
11. Lee, K.J. 1979. Factors affecting cone initiation in pines: A review. Res. Rep. Inst. For. Gen. Suwon, Korea. 15: 45-85 
12. Merkle, S.A., P.P. Feret, J.G. Croxdale, and T.L. Sharik. 1980. Development of floral primordia in white oak. Forest Sci. 26: 238-250 
13. Lee, K.J. 1993. Tree Physiology. Hyangmunsa. Seoul, Korea. 514p 
14. Ministry of Agriculture and Forestry. 1999. Prediction of flowering period, and selection and rapid propagation of individuals with extended flowering period and high-yielding nectars of Robinia pseudoacacia. Seoul, Korea. 166p 
15. Salisbury, F.C., and C.W. Ross. 1992. Plant Physiology. 4th ed. Wadsworth Publ. Co., Belmont, California. 682p 
16. Harlow, W.M., E.S. Harr, and F.M. White. 1979. Textbook of Dendrology (6th ed.) McGraw-Hill Book Co., New York, N. Y. 510p 
17. Chang, C.S., B. Bongarten, and J. Hamrick. 1998. Genetic structure of natural populations of black locust (Robinia pseudoacacia L.) at Coweeta, North Carolina. J. Plant Res. 111: 17-24 
18. Berlyn, G.P., and J.P. Miksche. 1976. Botanical Micro-technique and Cytochemistry. Iowa State University Press, Ames, Iowa. 326p 
19. Bonnet-Masimbert, M. 1978. Flowering on Lammas shoots of Douglas-fir. Proc. Symp. Flowering and Seed Development in Trees (ed. F. Bonner) May 15-18, 1978. Starkville, Mississippi. p51-56 

이 논문을 인용한 문헌 (1)

1. 2007. "" 韓國林學會誌 = Journal of Korean Forest Society, 96(2): 170~177  원문보기 상세보기