| Article |
|---|
| Article name |
Study on Phenology and Seed Production of Nelumbo komarovii Grossh. in the Population of the Species near Khabarovsk (Far East, Russia) |
| Authors |
Dulin A.F. Candidate of Science (Biology), associate professor, d-florin@mail.ruTsyrenova D.Y. Doctor of Science (Biology), associate professor, Duma@mail.ru |
| Bibliographic description |
Dulin A. F., Tsyrenova D. Yu. Study on Phenology and Seed Production of Nelumbo komarovii Grossh. in the Population of the Species near Khabarovsk (Far East, Russia) // Scholarly Notes of Transbaikal State University. Series Biological sciences. 2017. Vol. 12, No. 1. PP. 13–19. |
| Section |
Ecology |
| UDK |
581.9 (571.6) |
| DOI |
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| Article type |
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| Annotation |
In this article there were represented the results of investigation of phenology and seed production
of the rare relict species Nelumbo komarovii Grossh. (Nelumbonaceae) in the locale population of this
rare species near the city of Khabarovsk. The beginning and time of the vegetative and generative
phases and rest approaching were estimated: the vegetation until blossom (the second June decade),
the budding (the first July decade), the blossom (the second July decade), the budding (the first July
decade), the fruit growing (from the third July decade till the first October decade), the end of vegetation
(the third September decade) and rest (the first October decade). The inspected species population was
characterized as considerable ontogeny heterogeneous. In this case there are individuals in different
development phases: from the starting vegetative phase until the blossom and fruit growing. The
generated phases are the longest ontogenesis phases – the full blossom and fruit growing. There were
revealed that the air temperature in day time and the temperature near the surface of water above
+20 °C is important for the beginning of blossom. The vegetation of this species can continue up to cold
weather in the first days of October. The plants die away before the full fruit growing. Forced dormancy
is the relict species characteristic. It reflects the biological rhythm discrepancy of its existence in present
time. The low productive seeds of this population (about 26 %) were revealed. The main reasons of this
low production are considered to be vulnerable duration and non-completion of ontogenesis generate
phase. The seed propagation of N. komarovii in the nature is limited not only by natural biological factors
but also by phytophages (Ondatra). Morphometric characteristics of vegetative sphere shows that N.
komarovii population is estimated as successful near Khabarovsk. Effective breeding of the population
is due to vegetative reproduction.
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| Key words |
Nelumbo komarovii, Nelumbonaceae, phenology, seed production, Khabarovsk,Russian Far East |
| Article information |
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| References |
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| Full article | Study on Phenology and Seed Production of Nelumbo komarovii Grossh. in the Population of the Species near Khabarovsk (Far East, Russia) |
