Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1392
12
1
gregorian
2014
3
1
16
2
online
1
fulltext
en
Optimal Concentration of Zinc Sulfate in Foliar Spray to Alleviate Salinity Stress in Glycine soja
Zinc has previously been reported to alleviate salinity stress in plants. In this study, we monitored various biomass and chlorophyll fluorescence parameters to determine the optimum zinc sulfate concentration that can be used as foliar spray to alleviate salinity stress in <em>Glycine soja</em>. The plants subjected to a series of salinity levels (NaCl concentration of 0, 100, 200, and 300 mmol L<sup>-1</sup>), applied via the nutrient solution, were sprayed with different concentrations of zinc sulfate (0, 5, 10, 15, 20, 25 µmol L<sup>-1</sup>). The results showed that the biomass and chlorophyll fluorescence parameters of seedlings were significantly affected by salt stress (P < 0.05). However, zinc sulfate sprays helped the plants to cope with the stress condition. The zinc sulfate concentrations that helped <em>G. soja</em> to cope with the salinity stress of 100, 200, and 300 mmol L<sup>-1</sup> were 15 to 20, 15 to 20, and 10 to 20 µmol L<sup>-1</sup>, respectively. Lower zinc concentration was ineffective in alleviating stress and higher zinc concentration inhibited plant growth because of toxicological damage to plants. The zinc sulfate spray of 15 µmol L<sup>-1</sup> was found to be the most appropriate at all salinity stress levels. The growth measurements such as true leaves part and dry weight of total seedlings were in agreement with the chlorophyll fluorescence parameters, indicating a visible enhancement of leaf photosynthetic activity at 10-20 µmol L<sup>-1</sup> zinc concentrations.
Biomass,Chlorophyll fluorescence parameters,Nutrients,Photosynthetic activity,Salt tolerance,soybean
445
460
http://jast.modares.ac.ir/browse.php?a_code=A-23-11598-141&slc_lang=en&sid=23
W.
Jiang
W.
Jiang
100319475328460050848
100319475328460050848
No
College of Chemistry and Life Science, Zhejiang Normal University
College of Chemistry and Life Science, Zhejiang Normal University
X. H.
Sun
X. H.
Sun
100319475328460050847
100319475328460050847
No
Shaoxing University Yuanpei College
Shaoxing University Yuanpei College
H. L.
Xu
H. L.
Xu
100319475328460050846
100319475328460050846
No
College of Chemistry and Life Science, Zhejiang Normal University
College of Chemistry and Life Science, Zhejiang Normal University
N.
Mantri
N.
Mantri
100319475328460050845
100319475328460050845
No
School of Applied Sciences, Health Innovations Research Institute, RMIT University
School of Applied Sciences, Health Innovations Research Institute, RMIT University
H. F.
Lu
H. F.
Lu
100319475328460050844
100319475328460050844
Yes
College of Chemistry and Life Science, Zhejiang Normal University, 321004 Jinhua, China.
College of Chemistry and Life Science, Zhejiang Normal University, 321004 Jinhua, China.