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| Publication Type:
| Refereed |
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| Author(s): | Rossi, Frank S.;
Neal, Joseph C.;
Senesac, Andrew F. |
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| Title: | Alleviating the antagonistic effect of moisture stress on smooth crabgrass (Digitaria ischaemum) control with fenoxaprop |
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| Source: | Weed Science. Vol. 42, No. 3, July-September 1994, p. 418-423. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Drought; Irrigation; Water stress; Tank mix; Synergism; Antagonism; Fenoxaprop-ethyl; Digitaria ischaemum
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| Abstract/Contents: | "The influence of moisture stress intensity and duration, as well as tank mixtures with pendimethalin, which mitigated the antagonistic effects of drought, on fenoxaprop efficacy were evaluated. In growth chamber tests, specific soil matric potential (Ym) levels of -0.01 to -1 MPa were imposed and maintained using a polyethylene glycol semipermeable membrane system. Moisture stress was alleviated by irrigation 48 or 96h after herbicide treatment. Fenoxaprop efficacy was influenced by moisture stress intensity, post-treatment stress duration, and application rate. Under conditions of mild stress (Ym >/= -0.2 MPa), both increased application rate and irrigation 48 h after treatment alleviated the effects of drought on fenoxaprop efficacy. Under moderate stress(Ym = -0.4 MPa), the antagonistic effects of drought were alleviated by a combination of increased rate and irrigation 48 h after treatment. However,under more severe stress (Ym /= 0.27 kg ai ha-1 fenoxaprop plus >/= 2.2 kg ai ha-1 pendimethalin. These rate combinations were shown to be synergistic and able to alleviate the antagonistic effect of moisture stress on fenoxaprop efficacy. |
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| Language: | English |
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| References: | 22 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rossi, F. S., J. C. Neal, and A. F. Senesac. 1994. Alleviating the antagonistic effect of moisture stress on smooth crabgrass (Digitaria ischaemum) control with fenoxaprop. Weed Sci. 42(3):p. 418-423. |
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MSU catalog number: SB 610 .W38 |
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