Transactions of KarRC RAS :: Scientific publications
Transactions of KarRC RAS :: Scientific publications

Transactions of KarRC RAS :: Scientific publications
Karelian Research Centre of RAS
ISSN (print): 1997-3217
ISSN (online): 2312-4504
Transactions of KarRC RAS :: Scientific publications
Background Editorial committee Editorial Office For authors For reviewer Russian version
Transactions of KarRC RAS :: Scientific publications

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SCIENTIFIC PUBLICATIONS
Т.Г. Шибаева, Е.Ф. Марковская.
Влияние круглосуточного освещения на состояние фотосинтетического аппарата и рост растений огурца Cucumis sativus L. на ранних этапах онтогенеза
// Труды КарНЦ РАН. No 2. Сер. Экспериментальная биология. 2012. C. 162-166
T.G. Shibaeva, E.F. Markovskaya. Growth and the state of the photosynthetic apparatus of young cucumber plants (Cucumis sativus L.) under continuous light // Transactions of Karelian Research Centre of Russian Academy of Science. No 2. Experimental biology. 2012. Pp. 162-166
Keywords: Cucumis sativus L., photoperiod, continuous light, photoinhibition, foliar chlorosis
Continuous light enhanced the growth rate and biomass accumulation and increased the root weight ratio compared to other photoperiods in the first two weeks of cucumber seedling growth irrespective of light intensity. Extension of day length to 24 h at later stages gave no further increases in growth rate or dry matter increment. Moreover, plants under continuous light developed the light injury symptoms (reversible chlorosis) and their photosystem II suffered from photoinhibition. It is suggested that a 24-h photoperiod with relatively low photosynthetic photon flow can be used for cucumber transplant production in closed systems and greenhouses in order to reduce initial and operational costs.
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