期刊论文

Wang, W.

英文

PHOTOSYNTHETICA

0300-3604

2018

56

4

1031-1038

10.1007/s11099-018-0817-5

Abbreviations: Ca – ambient CO2 concentration; Chl – chlorophyll; Ci – intercellular CO2 concentration; E – transpiration rate; Em – saturation irradiance; ETR – electron transport rate; ETRmax – light-saturated ETR; FDF – flooding – midseason drying – flooding water regime; FDS – flooding – midseason drying – saturating water regime; FR – flooding – rain-fed water regime; Fm' – maximal fluorescence yield of the light-adapted state; Ft – instantaneous fluorescence; gs – stomatal conductance; Ls – stomatal limitation value; PN – net photosynthetic rate; RLC – rapid light curve; WP – water productivity; ΦPSII – effective quantum yield of PSII photochemistry. Acknowledgements: This work was supported by the National Natural Science Foundation of China (grant numbers: 41401292 and 41503081) and the International Science & Technology Cooperation Program of China (grant number: 2015DFA90450).

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An experiment was performed to study gas exchange and chlorophyll fluorescence responses of rice (Oryza sativa L.) to various regimes, such as flooding–midseason drying–flooding (FDF), flooding–midseason drying–saturation (FDS), and flooding–rain-fed (FR) regimes. Compared to FDF, FR resulted in an obvious decrease in net photosynthetic rate (PN), due to the decrease in stomatal conductance and the increase in stomatal limitation. In contrast, FDS plants did not suffer stomatal limitation and had comparable PN with FDF plants. For diurnal ...