Transplanting Herbaceous Perennials to the Arctic North (Pereselenie Travianstykh Mnogoletnikov na Poliarny' sever)
The author considers the basic features in the morphogenesis of plants introduced by the Arctic-Alpine Botanical Garden (city of Kirovsk, Murmanskaya Oblast), specifically the growth and development of above-ground and underground sprouts, the duration of the plants' life and of their individua...
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Language: | English |
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1975
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Online Access: | http://www.dtic.mil/docs/citations/ADA030111 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA030111 |
Summary: | The author considers the basic features in the morphogenesis of plants introduced by the Arctic-Alpine Botanical Garden (city of Kirovsk, Murmanskaya Oblast), specifically the growth and development of above-ground and underground sprouts, the duration of the plants' life and of their individual organs, as well as resistance to various unfavorable environmental conditions. A calculation of the extent of correlation between the pattern of the meteorological processes and the phenodates permitted us to disclose among many introducents special critical periods in the sprouts' development during which the plants are most sensitive to fluctuations in the stresses of meteorological factors. These periods can be timed both to the blossoming year and to the preceding year. In the process of natural selection, under the effect of natural conditions in the North, among the populations of the plants introduced, we can identify the following groups:--(1) plants with dicyclic and polycyclic type of sprouts (prolongation of the period required for the formation of sprouts among such plants compensates to some extent for the thermal deficit experience by many plants in the North); (2) plants with accelerated monocyclic type of scions (such an acceleration is often the result of abbreviation, i.e. the fall-out of one of the developmental phases); (3) plants with reduced apical dominance (this phenomenon is accompanied by an abrupt increase in the number of wintering-over buds) and (4) plants able to exist for a prolonged time and to reproduce only vegetatively without perceptible degradation. Stability of phenophases among transplants in the North is less than under natural conditions in their country of origin. Trans. of Akademiya Nauk SSSR. Ordena Lenina Kol'skiy Filial Im. S.M. Kirova. Polyarno-Al'piyskiy Botanicheskiy Sad-Institut (USSR) p1-266 1973. |
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