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| Web URL(s): | http://www.jstor.org/stable/pdfplus/4044056.pdf
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http://www.jstor.org/stable/4044056
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| Publication Type:
| Refereed |
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| Author(s): | Forney, D. Raymond;
Foy, Chester L. |
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| Author Affiliation: | Forney: Graduate Research Assistant; Foy: Professor, Plant Physiology, Department of Plant Pathology, Physiology and Weed Science, Virginia Polytechnic Institute and State University, Blacksburg, Virginia |
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| Title: | Phytotoxicity of product from rhizospheres of a sorghum-sudangrass hybrid (Sorghum bicolor x Sorghum sudanese) |
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| Section: | Physiology, chemistry, and biochemistry
Other records with the "Physiology, chemistry, and biochemistry" Section
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| Source: | Weed Science. Vol. 33, No. 5, September 1985, p. 597-604. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Allelopathy; Bioassay; Herbicide application; Lolium multiflorum; Medicago sativa; Phytotoxicity; Rhizosphere; Root growth; Rumex crispus; Sorghum sudanense
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| Abstract/Contents: | "Products were collected from rhizospheres of a hydroponically grown sorghum-sudangrass hybrid [Sorghum bicolor (L.) Moench. x Sorghum sudanense (P.) Stapf. 'DeKalb SX17+'] (SSH) and tested for effects on seedling root growth of selected species. Phytotoxic activity was recovered in CH2Cl2 extracts of aqueous solutions of the rhizosphere products. Significant inhibition of annual ryegrass (Lolium multiflorum L.) and alfalfa (Medicago sativa L. was produced by ca. 200 ppmw (H20 weight basis) of the most phytotoxic fraction in filter-paper-disk bioassays. In soils, 70 ppmw (soil weight basis) inhibited alfalfa but not ryegrass. Among several bioassay species, alfalfa was the most sensitive and curly dock (Rumex crispus L. #3 RUMCR) the least. Treatment of SSH plants with herbicides increased the phytotoxicity but not the amounts of materials collected. Sethoxydim {2-[1 -(ethoxyimino)-butyll-5-[2-ethylthio)propyl]-3- hydroxy-2-cyclohexen-1-one} was detected in rhizosphere products from plants treated with the herbicide. Amounts of products collected from rhizospheres of common rye (Secale cereale L. 'Wheeler'), johnsongrass [Sorghum halepense (L.) Pers. # SORHA], and cucumber (Cucumis sativus L. 'PI 169391') were similar to those from SSH, but their phytotoxicities differed. Johnsongrass products were most phytotoxic, those from common rye and SSH were similar in phytotoxicity, and those from cucumber were least phytotoxic." |
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| Language: | English |
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| References: | 41 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Forney, D. R., and C. L. Foy. 1985. Phytotoxicity of product from rhizospheres of a sorghum-sudangrass hybrid (Sorghum bicolor x Sorghum sudanese). Weed Sci. 33(5):p. 597-604. |
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| Web URL(s):
http://www.jstor.org/stable/pdfplus/4044056.pdf
Last checked: 10/22/2009
Requires: PDF Reader
http://www.jstor.org/stable/4044056
Last checked: 10/22/2009 |
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MSU catalog number: SB 610 .W38 |
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