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水生生物学期刊
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN 打印: 0018-8166
ISSN 在线: 1943-5991

水生生物学期刊

DOI: 10.1615/HydrobJ.v50.i5.80
pages 78-88

Effect of Rest Period on Germination of the Common Reed Seeds from the Water Bodies of the Chornobyl Exclusion Zone

N. L. Shevtsova
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
A.A. Yavniuk
Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
D. I. Gudkov
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv

ABSTRACT

Effects of chronic irradiation by low doses of ionizing radiation on viability of the common reed Phragmites australis (Poacea) from the water bodies of the Chornobyl exclusion zone were studied. Indexes of germinating capacity, germinative energy, viability of seedlings and survival rate of seeds depending on radiation dose were determined. Effect of the "rest period" was revealed, that is increase on average by 20−25% of germinating capacity and viability of seedlings of the plants, growing under the chronic irradiation, after 6−7 months of rest under absence of irradiation. Reliable correlation was stated between physiological state of the reed seeds and absorbed dose rate of the parental plant.


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