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007 cr |
008 210309|2020 enk s a eng d
024 7 _a10.1088/1755-1315/421/5/052036
_2doi
035 _ato000794901
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aReproductive biology of a rare species Begonia ludwigii in greenhouse conditions of the Siberian Botanical Garden of Tomsk State University
_cM. S. Yamburov, A. I. Lykhina, S. B. Romanova [et al.]
336 _aТекст
337 _aэлектронный
504 _aБиблиогр.: 12 назв.
520 3 _aThe paper presents the results of a reproductive biology study and the Begonia ludwigii seasonal development rhythm - a species classified by the International Union for Conservation of Nature as a rarity category EN (endangered species). The studies have shown that when cultivated in the Tomsk State University Siberian Botanical Garden greenhouse conditions, this species has high potential seed productivity (about 75,000 ovules per inflorescence), high fertility and pollen viability, but at the same time low true seed productivity (seed rate not more than 27%). It was established that the Begonia ludwigii seeds, in the greenhouse conditions, are tied to heterogamous pollination due to the absence of pollinating insects. The use of xenogamous artificial pollination increased the coefficient of seed productivity by almost 3 times. The paper also describes the full seasonal development rhythm, flowering biology, biomorphological features of pollen and seeds.
653 _aТомский государственный университет. Сибирский ботанический сад
653 _aрепродуктивная биология
653 _aбегония
655 4 _aстатьи в журналах
_9745982
700 1 _aLykhina, A. I.
_9510248
700 1 _aRomanova, Svetlana B.
_9496832
700 1 _aSmolina, Valentina M.
_9496833
700 1 _aZharnakova, E. Yu.
_9496829
700 1 _aYamburov, Mikhail S.
_9567787
773 0 _tIOP Conference Series: Earth and Environmental Science
_d2020
_gVol. 421. P. 052036 (1-6)
_x1755-1307
852 4 _aRU-ToGU
856 4 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000794901
908 _aстатья
999 _c479528