Effects of zinc and soil moisture on photosynthetic rate and chlorophyll fluorescence parameters of maize |
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| Authors: | H Wang R L Liu and J Y Jin |
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| Institution: | (1) Key Laboratory of Plant Nutrition and Nutrient Cycling Research, Ministry of Agriculture, Beijing, 100081, P.R. China;(2) Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, P.R. China |
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| Abstract: | Effects of zinc 0 and 5.0 mg Zn kg−1 (soil)] on photosynthetic rate (PN), and chlorophyll fluorescence in leaves of maize (Zea mays L.) cv. Zhongdan 9409 seedlings grown under different soil moisture regimes (40–45 % and 70–75 % of soil saturated water
content) were studied. Zn application did not enhance maize plant adaptation to drought stress. The relative water content
and the water potential of leaves were not affected by Zn treatment. Moreover, The PN of drought-stressed plants was not improved by Zn supply. The increases of plant biomass, stomatal conductance and quantum
yield of photosystem 2 due to Zn addition were notable in well-watered plants. |
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| Keywords: | Additional" target="_blank">Additional drought photosystem 2 stomatal conductance Zea mays zinc deficiency |
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