Time of Fertilization in Pinus Taeda L. (Loblolly Pine)
Pinus taeda L. (Loblolly Pine) is the most important forest tree species in the Southeastern United States producing the major volume of both commercial timber and pulpwood for the region. Inadequate regeneration of this species has been identified as one of the problems of continued high softwood production in the Southeast. Part of the solution would be a readily available seed supply for forest nurseries.
KeywordsEthyl Germinate Paraffin Butyl Glutaraldehyde
Unable to display preview. Download preview PDF.
- BRAMLETT, D.L. and O’GWYNN, C.H. (1980). Recognizing developmental stages in southern pine flowers. USDA For. Ser. Gen. Tech. Rep. SE-18.Google Scholar
- CHAMBERLIN, C.J. (1935).Gynmnosperms, Structure and Evolution The University of Chicago Press, Chicago, Illinois.Google Scholar
- FERGUSON, M.C. (1904). Contributions to the knowledge of the life history of Pinus with special reference to sporogenesis, the development of the gametophytes and fertilization. Proc. Wash. Acad. Sci., 6, 1–202.Google Scholar
- JENSEN, W.A. (1962). Botanical Histochemistry W.H. Freeman and Co., San Francisco, California.Google Scholar
- LILL, B.S. (1976). Ovule and seed development in Pinus radiate: premiotic development, fertilization and embryogeny. Can. J. Bot., 54, 2141–2154.Google Scholar
- MAHESHWARI, P. and SINGH, H. (1967). The female gametophyte of gymnosperms. Biol. Rev. 42, 88–130.Google Scholar
- MATTHEWS, F.R. and BLALOCK, T.E. (1981). Loblolly pine pollen grain counts by ovule dissection. In Proc. 16th South. For. Tree Improv. Conf., May 27–28, 1981: 276–278, Blacksburg; VA.Google Scholar
- SETHI, M.L. (1928). Contributions to our knowledge of the life cycle of Pinus longifolia. J. Indian Bot. Soc., 7, 105–151.Google Scholar
- WILLEMSE, M.T.M. and FRANSSEN-VERHEIJEN, M.A.W. (1983). Ovular development. In: Fertilization and Embryogenesis in Ovulated Plants, pp. 177–182, ( O. Erdelska, Ciamporova, M., Lux, A., and Tupy, J., eds.), Slovak Academy of Sciences, Bratislava, Czechoslovakia.Google Scholar
- ZOBEL, B.J., BARBER, J., BROWN, C.L., PERRY, T.V. (1958). Seed orchards-their concept and management. J. For., 56, 815–825.Google Scholar