biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 53:191-194, 2009 | DOI: 10.1007/s10535-009-0033-z

Effects of zinc and soil moisture on photosynthetic rate and chlorophyll fluorescence parameters of maize

H. Wang1,*, R. L. Liu2, J. Y. Jin1
1 Key Laboratory of Plant Nutrition and Nutrient Cycling Research, Ministry of Agriculture, Beijing, P.R. China
2 Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, P.R. China

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.

Keywords: drought; photosystem 2; stomatal conductance; Zea mays; zinc deficiency
Subjects: chlorophyll a,b; chlorophyll fluorescence; maize; quenching analysis; relative water content (RWC); stomatal conductance; transpiration rate; water potential; water use efficiency (WUE); Zea mays; zinc

Received: May 25, 2008; Accepted: October 10, 2008; Published: March 1, 2009  Show citation

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Wang, H., Liu, R.L., & Jin, J.Y. (2009). Effects of zinc and soil moisture on photosynthetic rate and chlorophyll fluorescence parameters of maize. Biologia plantarum, 53(1), 191-194. doi: 10.1007/s10535-009-0033-z
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