McWhorter, C.G. (1981) Effect of temperature and relative humidity on translocation of ¹⁴C-metriflufen in johnsongrass. Weed Science, 29 (1). pp. 87-93.
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Abstract
The uptake and translocation of 14C-trifop by Sorghum halepense and soybean cv. Lee 68 were examined under different environmental conditions. At RH 40%, an increase in air temp. from 18 deg to 35 deg C increased the translocation of 14C in S. halepense more than 4-fold following the application of 14C-trifop to an area on the 3rd leaf. At 100% RH, translocation of 14C at 27 deg C was twice that at 18 deg C while translocation at 35 deg C was intermediate. In a combined analysis, translocation in S. halepense was no better at RH 100% than at RH 40%. At 18 deg and 27 deg C, most translocation was toward the distal end of the treated leaf while at 35 deg C most translocation was toward the proximal end. Translocation of 14C in soybeans increased more than 4-fold as air temp. increased from 18 deg C to 35 deg C. More translocation occurred at RH 100% than at RH 40% for all temps. More than 80% of the 14C-trifop remained in or on the treated leaf 48 h after application. More of the applied radioactivity was recovered from soybean plants than from S. halepense plants. From summary
| Item Type: | Article |
|---|---|
| Author Affiliation: | U.S. Department of Agriculture, Southern Weed Science Laboratory, Stoneville, Mississippi 38776, USA |
| Subjects: | Plant Protection |
| Divisions: | Sorghum Soyabean |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 08 Aug 2012 03:43 |
| Last Modified: | 08 Aug 2012 03:43 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/7225 |
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