Abstract

In order to find an appropriate Sodium Silicate (SS) application amount and improve the resistance to salt stress in dry-land wheat. The effects of SS on growth and physiological characteristics under 0.2% salt stress in dry-land wheat seedlings by applying different amounts of SS had been studied in the pots in the artificial climate chamber with the variety wheat Jimai22. The results indicated that, SS can increase root-shoot ratio, aboveground and underground fresh weight under 0.2% salt stress in dry-land wheat seedlings. Meanwhile, SS also could improve Superoxide dismutase (SOD), Peroxidase (POD) activity and reduce Malondialdehyde (MDA) content. In the SS amount range of 0~7.5 kg/667 m², the SS application amount of 5 kg/667 m² was the best to promote the growth of dry-land wheat seedlings under 0.2% salt stress.

Keywords:

Dry-land wheat seedlings, growth characteristics, protective enzymes actives, salt stress, sodium silicate,

References

1. Aiguo, W., L. Guanghua and S. Congben, 1983. Study on superoxide dismutase in soybean seeds. J. Plant Physiol., 9(1): 77-83.
   
2. Chengxiang, X., L. Zhaopu and L. Youliang, 2004. Silicon on the physiological function of plants. Plant Physiol. Commun., 40(6): 753-757.
   
3. Fengying, X., Z. Xiujuan and W. Xiaoling, 2014. Effect of liquid silicon potash fertilizer on canopy structure, photosynthetic characteristics and yield in rice. Jiangsu J. Agr. Sci., 30(1): 67-72.
   
4. Guowei, X., C. Erhua and C. Jian, 2005. Effects and influential factors of straw returning. Farming Cultivat., 1(1): 6-9.
   
5. Hecheng, L., 2000. The Principle and Technology of Plant Physiology and Biochemistry Experiment. Higher Education Press, Beijing.
   
6. Hongmei, M., H. Duohong and Z. Fenqin, 2013. Effects of silicon on physiological characteristics of Isatis indigotica seedlings under lead stress. Li Shizhen Med. Mater. Med. Res., 24(10): 2509-2511.
   
7. Huitao, B., H. Fuqiang and Q. Lin, 2007. The effect of drought stress on protective enzyme activities and lipid peroxidation of jujube. Chinese Agric. Sci. Bull., 23(2): 151-155.
   
8. Jianxin, L., H. Haobin and W. Xin, 2008. Effects of silicon on active oxygen metabolism and photosynthetic parameters under salt stress in ryegrass seeding. Chinese J. Grassland, 30(5): 25-30.
   
9. Jiaojiao, D., Y. Zihui and K. Jianjun, 2013. Study of the interaction of Sodium and silicon to improve the drought resistance of Nitraria. Acta Prataculturae Sinica, 22(2): 203-210.
   
10. Liang, C., L. Jing and H. Feng, 2013. Effects of silicon on rice yield. Shanghai Agric. Sci. Technol., 6: 115.
    
11. Liyan, W., 2013. Study of silicon on the resistance to salt and the mechanism of wild soybean seedlings. Soybean Sci., 32(5): 559-663.
    
12. Qiuchan, H., W. Youhuan and W. Fangli, 2011. Effect of silicon on root biomass and cadmium content of rice seedlings under cadmium stress. Guizhou Agric. Sci., 39(3): 66-68.
    
13. Xin, L. and C. Yajun, 2013. Study of silicon on drought resistance and physiological variation in bluegrass. M.Sc. Thesis, Northeast Agricultural University, 30(5): 1-93.
    
14. Xiyan, W., Z. Yulong and Z. Hengming, 2009. Effects of silicon on protective enzyme activity and membrane peroxidation under salt stress in cucumber. J. Northwest Agric., 18(1): 221-224.
    
15. Xueming, Z., W. Guorong and L. Changhai, 2001. Effect of Ca2+ on heat tolerance and active oxygen metabolism of peanut seedlings. China J. Oil Crop, 23(1): 46-50.
    
16. Yizong, H., Z. Wenqiang and Z. Lijun, 2009. Effects of silicon on root activity, MDA and nutrient elements content of rice under salt stress. J. Chem. Ecol., 4(6): 860-866.
    
17. Yonghui, Y., W. Jicheng and L. Zongjun, 2013. Effects of water retaining agent dosage on the growth and water-fertilizer utilization in winter wheat. Agr. Res. Arid Areas, 31(3): 128-132.
    
18. Zhifang, L., L. Shuangshun and L. Guizhu, 1984. The relationship between rice leaves senescence and superoxide dismutase activity, lipid peroxidation. Bot. Gaz., 26(6): 605-615.
    

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The authors have no competing interests.

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