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Effect of silicate on the growth and arsenate uptake by rice (Oryza sativa L.) seedlings in solution culture
Guo, W; Hou, YL; Wang, SG; Zhu, YG
2005
Source PublicationPLANT AND SOIL
Volume272Issue:2015-01-02Pages:173-181
AbstractA solution culture experiment was conducted to investigate the effect of silicate on the yield and arsenate uptake by rice. Rice seedlings (Oryia sativa L. cv. Weiyou 77) were cultured in modified Hoagland nutrient solution containing three arsenate levels (0, 0.5 and 1.0 mg L-1 As) and four silicate levels (0, 14, 28 and 56 mg U 1 Si). Addition of Si significantly increased shoot dry weight (P = 0.001) but had little effect on root dry weight (P = 0.43). Addition of As had no significant effect on shoot dry weight (P = 0.43) but significantly increased root dry weight (P = 0.01). Silicon concentrations in shoots and roots increased proportionally to increasing amounts of externally supplied Si (P < 0.001). The presence of As in the nutrient solution had little effect on shoot Si concentration (P = 0.16) but significantly decreased root Si concentration (P = 0.005). Increasing external Si concentration significantly decreased shoot and root As concentrations and total As uptake by rice seedlings (P < 0.001). In addition, Si significantly decreased shoot P concentration and shoot P uptake (P < 0.001). The data clearly demonstrate a beneficial effect of Si on the growth of rice seedlings. Addition of Si to the growth medium also inhibited the uptake of arsenate and phosphate by the rice seedlings.
Department土壤环境科学实验室
KeywordArsenate Uptake Phosphate Rice Silicate
DOI10.1007/s11104-004-4732-0
WOS Research AreaAgriculture ; Plant Sciences
WOS IDWOS:000230397300016
Citation statistics
Cited Times:83[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/23337
Collection土壤环境科学实验室
Recommended Citation
GB/T 7714
Guo, W,Hou, YL,Wang, SG,et al. Effect of silicate on the growth and arsenate uptake by rice (Oryza sativa L.) seedlings in solution culture[J]. PLANT AND SOIL,2005,272(2015-01-02):173-181.
APA Guo, W,Hou, YL,Wang, SG,&Zhu, YG.(2005).Effect of silicate on the growth and arsenate uptake by rice (Oryza sativa L.) seedlings in solution culture.PLANT AND SOIL,272(2015-01-02),173-181.
MLA Guo, W,et al."Effect of silicate on the growth and arsenate uptake by rice (Oryza sativa L.) seedlings in solution culture".PLANT AND SOIL 272.2015-01-02(2005):173-181.
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