The Replication of the Purple-flowered Rhododendron (Rhododendron ponticum L.) by Seed and Chances of Survival in Replanting in Different Media

This study investigates the germination, replanting and survival of Rhododendron ponticum, a species native to Turkey, in different media. The conditions of the germination medium were first investigated and the seedlings obtained were applied as a first replicate in a peat medium, and at the end of 4 months a second replicate in 7 different media was used to examine their development and survival in these media. The data obtained were then compared to the data obtained from soil analysis and their relations were outlined along with statistical considerations. According to the findings, an efficient germination was observed when the seeds were sown in the form of a thin layer. By administering water via a handspring to maintain the moisture of the soil at an adequate level and preventing the seeds from aggregating during watering resulted in a homogeneous germination. The appropriateness of the peat soil in the first replanting of the rhododendron seedlings reproduced from seeds was determined (based on the healthy development of the seedlings). The Rhododendron ponticum L. seedlings in the second replanting adapts better in soils that are acidic (pH 4.5-5.5) and rich in organic matter (60%-70%) and in moisture (60%-70%) and semi-shaded areas (areas that receive 50% or more of solar radiation indirectly).

Anahtar Kelimeler:

Rhododendron, Rhododendron ponticum L., replicate by seed

The Replication of the Purple-flowered Rhododendron (Rhododendron ponticum L.) by Seed and Chances of Survival in Replanting in Different Media

Keywords:

Rhododendron, Rhododendron ponticum L., replicate by seed,

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Abbot, N. 1972. Hilliers’ Manual of Trees & Shurubs, Hillaer & Sons, London.
Anflin, R. and S. Terzio¤lu. 1994. Mor Çiçekli Ormangülü’nün yeni bir varyetesi (Rhododendron ponticum L. Subsp. ponticum var. Heterophyllum Anflin var. Noval, Turk. J. Agric. For. 18: 137- 140
Brenzel, K.N. 1997. Sunset National Garden Book, by The Editors of Sunset Book and Sunset Magazine, USA. Clarke, J.H. 1982. Getting Started with Rhododendrons and Azaleas. Timber Press, USA.
Clay, D.V., J.S. Goodall and D.G. Nelson. 1992. The effect of imazapyr on Rhododendron ponticum. Aspect Appl.Biol. 29: 287-294.
Cox, A.P. 1990. The Larger Rhododendron Species. Timber Press, USA. Cross, J.R. 1981. The establishment of Rhododendron ponticum in the killarney oakwoods S.W. Ireland. J. Ecol. 69: 807-824.
Çolak, A.H. and H. Aksoy. 1997. Rhododendron ponticum L.(Mor Çiçekli Ormangülü)’nun Silvikültür Özellikleri Üzerine Arafltırmalar. Doktora Tezi, ‹stanbul Üniversitesi, Fen Bilimleri Enstitüsü.
Eflen, D. 2000. Ecology and Control of Rhododendron (Rhododendron ponticum L.) in Turkish Eastern Beech (Fagus orientalis Lipsky) Forests. Dissertation Submitted to the Faculty of the Virginia Polytechnic Institute and State University in Patrial Fulfilment of the Requirements of The Degree of Doctor of Philosophy in Forestry, USA.
Jackson, M.L. 1962. Soil Chemical Analysis Prentice-Hall. Inc. Englewood Cliffs, NJ, USA.
Küçük, M. and M. Topçu. 1993. Do¤u Karadeniz Ormangülleri ve ekonomik önemleri. Yunus ‹lim, Kültür, Sanat ve Çevre Dergisi, 4: 22-25.
Küçük, M. and M. Var. 1995. Do¤u Karadeniz yöresinin do¤al herdemyeflil odunsu taksonlarının floristik, ekolojik ve ekonomik önemleri. Ot Sistematik Botanik Dergisi, 2:167-173
Libb, C.C. and E.T. Nilsen. 1997. The impact of subcanopy light environment on the hydraulic vulnerability of Rhododendron maximum L. to freeze-thaw cycles and drought. Plant Cell Env. 20: 1264-1272.
Reiley, E.H. 1995. Success with Rhododendrons and Azaleas. Timber Press, Portland, OR, USA.
Robinson, J.D. 1980. Rhododendron ponticum, A Weed of Woodlands and Forest Plantations Seriously Affecting Management. Proc., Weed Control in Forestry Conf., Brighton Crop Prot., Conf., 89- 95.
Thomson, A.G., G.L. Radford, D.A. Norris and J.E.G. Good. 1993. Factors affecting the distribution of Rhododendron in North Wales. J. Env. Manag. 39: 199-212.