Full TGIF Record # 232155
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DOI:10.1080/01904160801894913
Web URL(s):http://www.tandfonline.com/doi/full/10.1080/01904160801894913
    Last checked: 11/06/2013
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http://www.tandfonline.com/doi/pdf/10.1080/01904160801894913
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Publication Type:
i
Report
Author(s):Eneji, A. Egrinya; Inanaga, S.; Muranaka, S.; Li, J.; Hattori, T.; An, P.; Tsuji, W.
Author Affiliation:Eneji and Li: College of Agronomy and Biotechnology, China Agricultural University, Beijing, China; Inanaga: Japan International Center for Agricultural Sciences, Tsukuba, Japan; Muranaka: Internation Institute of Tropical Agriculture, Kano Station, Nigeria; Inanaga, Hattori, An, and Tsuji: Arid Land Research Center, Tottori University, Japan
Title:Growth and nutrient use in four grasses under drought stress as mediated by silicon fertilizers
Source:Journal of Plant Nutrition. Vol. 31, No. 2, 2008, p. 355-365.
# of Pages:11
Publishing Information:New York, New York: Marcel Dekker, Inc.
Related Web URL:http://www.tandfonline.com/doi/abs/10.1080/01904160801894913
    Last checked: 11/06/2013
    Notes: Abstract only
Keywords:TIC Keywords: Chloris gayana; Drought stress; Fertilization program; Festuca arundinacea; Irrigation; Nutrient uptake; Phleum pratense; Relative growth rate; Silicon sources; Sorghum sudanense; Water stress
Abstract/Contents:"Field water stress is a common problem in crop production, especially in arid and semi-arid zones and it is widely hypothesized that silicon (Si) could reduce water stress in plants. We set up a greenhouse study to evaluate some silicon sourcespotassium silicate (K2SiO3), calcium silicate (CaSiO3) and silica gel for growth and nutrient uptake by four grass species under adequate and deficit irrigation. The four species studied were Rhodes grass (Chloris gayana), Timothy grass (Phleum pratense), Sudan grass (Sorghum sudanense) and Tall fescue (Festuca arundinacea). For all species, the biomass yield response to applied silicon under deficit irrigation was significantly better than under adequate irrigation. The yield response of Rhodes grass across silicon sources was 205% under deficit irrigation compared with only 59% under adequate irrigation; for Sudan grass it was 49% compared with 26% and for Timothy, it was 48% compared with a mere 1%. The higher responses under deficit irrigation suggest that the plants relied more on silicon to endure drought stress. Biomass yield of individual plants also differed according to soil water levels with Timothy grass being the most sensitive to water stress as it exhibited the highest yield response (209%) to adequate irrigation. This was followed by tall fescue (122%) and Rhodes grass (97%). Sudan grass was the least affected by deficit irrigation, possibly on account of improved root mass and its natural drought tolerance. Strong associations were noted between the uptake of silicon and those of nitrogen (N) and phosphorus (P) irrespective of soil water condition, but the uptake of potassium (K) was more strongly correlated with that of Si under deficit than adequate irrigation. Improvements in plant growth following Si application could therefore be linked to enhanced uptake of major essential nutrients."
Language:English
References:28
Note:Equations
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Eneji, A. E., S. Inanaga, S. Muranaka, J. Li, T. Hattori, P. An, et al. 2008. Growth and nutrient use in four grasses under drought stress as mediated by silicon fertilizers. J. Plant Nutr. 31(2):p. 355-365.
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DOI: 10.1080/01904160801894913
Web URL(s):
http://www.tandfonline.com/doi/full/10.1080/01904160801894913
    Last checked: 11/06/2013
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/01904160801894913
    Last checked: 11/06/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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