Full TGIF Record # 34611
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Web URL(s):https://archive.lib.msu.edu/tic/itgcs/article/1995feb9.pdf
    Last checked: 09/29/2008
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Publication Type:
i
Proceedings
Author(s):Lee, Chiwon W.
Author Affiliation:Department of Plant Sciences, North Dakota State University, Fargo, ND
Title:Micronutrient toxicity in turfgrasses
Meeting Info.:San Francisco, February 20-27, 1995
Source:Conference Proceedings: 66th International Golf Course Conference and Show. 1995, p. 9.
Publishing Information:Lawrence, KS: Golf Course Superintendents Association of America
# of Pages:1
Keywords:TIC Keywords: Micronutrients; Mineral element toxicity; Industrial wastes; Boron; Chlorine; Copper; Iron; Manganese; Molybdenum; Zinc; Poa pratensis; Bouteloua dactyloides; Chlorosis; Necrosis; Chlorophyll; pH
Abstract/Contents:"In a series of experiments, the threshold concentrations of microelements that cause plant toxicity in Kentucky bluegrass (Poa pratensis) and buffalograss (Buchloe dactyloides) were determined. These two species were grown in a greenhouse and fertilized with 0.5, 1, 2, 4, 6, 8, and 12 mM of boron (B), chloride (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), or zinc (Zn) added to the nutrient solution. Toxicity symptoms developed more readily in plants treated with B and Mo than those treated with other microelements. In general, buffalograss showed a slightly higher level of tolerance than the Kentucky bluegrass on a mM nutrient concentration basis. Boron (B) toxicity was characterized by severe chlorosis and leaf bleaching which occurred when the tissue contained 591 ppm B in Kentucky bluegrass and 406 ppm B in buffalograss. Dry matter yield was reduced when the tissue contained 1,970 ppm B in Kentucky bluegrass and 2,570 ppm B in buffalograss. Molybdenum toxicity was characterized by leaf browning and necrosis. Visual toxicity symptoms developed when the tissue contained 1,280 ppm Mo in Kentucky bluegrass and 3,090 ppm Mo in buffalograss. Copper-treated plants developed leaf chlorosis and creamy-white lesions when tissues contained 656 ppm Cu in Kentucky bluegrass and 1,620 ppm Cu in buffalograss. Chloride and manganese toxicity symptoms were absent or negligible for both species in the concentration ranges tested. Visual toxicity in iron treated plants developed when tissues contained. 2,557 ppm Fe in Kentucky bluegrass and 966 ppm Fe in buffalograss. Leaf chlorophyll contents in both species increased as Fe concentration in the tissues increased. Findings of these experiments may be used as reference for determining toxic levels of micronutrients in turfgrasses which are grown undersuboptimal pH or with industrial waste materials."
Language:English
References:0
See Also:Other items relating to: MICRO
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lee, C. W. 1995. Micronutrient toxicity in turfgrasses. p. 9. In Conference Proceedings: 66th International Golf Course Conference and Show. San Francisco, February 20-27, 1995. Lawrence, KS: Golf Course Superintendents Association of America.
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https://archive.lib.msu.edu/tic/itgcs/article/1995feb9.pdf
    Last checked: 09/29/2008
    Requires: PDF Reader
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