Critical Leaf Water Content for Maize Photosynthesis under Drought Stress and Its Response to Rewatering
نویسندگان
چکیده
Crop photosynthesis is closely related to leaf water content (LWC), and clarifying the LWC conditions at critical points in crop has great theoretical practical value for accurately monitoring drought providing early warnings. This experiment was conducted study response of rewatering determine which maize reaches a maximum minimum thus changes from state stomatal limitation (SL) non-stomatal (NSL). The effects rehydration were different after levels stress intensity growth stages, recovered following stresses jointing stage; however, more slowly 43 days 36 tasselling silking respectively. when changed SL NSL 75.4% ± 0.38%, implying that became rehydrated under physiologically impaired conditions. LWCs Vcmax25 reached values zero differed between periods. After exposure stress, exhibited enhanced tolerance, an obviously reduced suitable range, significantly weakened photosynthetic capacity. These results provide profound insight into turning their responses rewatering. They may also help improve management, will be useful coping with increased frequency extreme weather events expected global climate change.
منابع مشابه
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ژورنال
عنوان ژورنال: Sustainability
سال: 2021
ISSN: ['2071-1050']
DOI: https://doi.org/10.3390/su13137218