Types of seed germination for the plants in Central Yakutia
https://doi.org/10.31242/2618-9712-2019-24-2-8
Abstract
On the basis of the studies of freshly collected seeds of 187 plant species in Central Yakutia, three groups including 11 subgroups were distinguished on the basis of germination features. The scale of seed germination types is based on such parameters as the start, duration, rate of germination, germinating capac ity, and seed germination energy. It was detected that freshly collected seeds of the studied 52 species exhibit accelerated germination (I group), 57 species exhibit slow germination (II group), while 78 species do not germinate and/or germinate only weakly (III group). For the seeds of the species included in group III, the methods to overcome their dormancy are proposed: storage in dry air for 5–7 months under room conditions and stratification in a climatic chamber at decreased temperatures 0–3 and 5 °C. As a result of dry storage, the seeds of 23 species exhibited accelerated germination (subgroup IIIA), 14 species germinated slowly (subgroup IIIB), the seeds of 27 species exhibited weak germination, with the germination capacity 2 to 24 % (subgroup IIIC), nad the seeds of 14 species revealed zero germination capacity (subgroup IIID).
Keywords
seed germination,
laboratory seed germination capacity,
seed germination features,
seed stratification,
Central Yakutia
Supporting agencies: This work was partially supported by VI.52.1.8. grant № 0376-2019-0003
About the Author
Daria Nikolaevna Androsova
Institute for Biological Problems of Cryolithozone, SB RAS
Russian Federation
Russian Federation
Androsova Daria Nikolaevna, Research Engineer, Institute for Biological Problems of Cryolithozone, SB RAS, Yakutsk, 41 Lenina pr., Yakutsk, 677980, Russia, https://orcid/-0000-0003-1521-0556, darija_androsova@mail.ru
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Review
For citations:
Androsova D.N. Types of seed germination for the plants in Central Yakutia. Arctic and Subarctic Natural Resources. 2019;24(2):83-94. (In Russ.) https://doi.org/10.31242/2618-9712-2019-24-2-8
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