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Choosing initial material at the level of complex species in introducing trees

, : Choosing initial material at the level of complex species in introducing trees. Byul Gl botan sada AN SSSR (90): 3-7

Since wild tree populations show intraspecific variation, it is recommended that, when introducing them into cultivation, initial material be selected not only from the centre of the area of distribution, but also from its edges.


Other references

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Cabrera, D.M.; Janech, M.G.; Morinelli, T.A.; Miller, D.H., 2003: A thromboxane A2 system in the Atlantic stingray, Dasyatis sabina. Thromboxane B2 (TXB2) is the stable metabolite of thromboxane A2 (TXA2) and thromboxane B2-like immunoreactivity (iTXB2) has been identified in the plasma of the Atlantic stingray, Dasyatis sabina (0.57[plus or minus]0.03 ng/ml). Plasma levels of...

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Hoffmann, W.E., 1941: Catalogue of aquatic Hemiptera of China, Indo-China, Formosa and Korea. Lingnan Science Journal, 20: 1-78E

Masepohl, B.; Hallenbeck, P.C., 2010: Nitrogen and molybdenum control of nitrogen fixation in the phototrophic bacterium Rhodobacter capsulatus. The vast majority of the purple nonsulfur photosynthetic bacteria are diazotrophs, but the details of the complex regulation of the nitrogen fixation process are well understood only for a few species. Here we review what is known of the well-stud...

van Wesenbeeck, I.J.; Knuteson, J.A.; Barnekow, D.E.; Phillips, A.M., 2007: Measuring flux of soil fumigants using the aerodynamic and dynamic flux chamber methods. Methods for measuring and estimating flux density of soil fumigants under field conditions are important for the purpose of providing inputs to air dispersion models and for comparing the effects of management practices on emission reduction. The...

Welsh, D.; Chapman, D., 1990: A stereotactic technique for volumetric interstitial implantation in the brain. Stereotaxis, a method of localizing a specific point using three dimensional coordinates, has greatly improved since the advent of computed tomography (CT). A simple, noninvasive stereotactic system which enables rapid, parallel placement of multi...