Timing of Glyphosate Application for Weed Control in Glyphosate Tolerant Lettuce
| dc.contributor.author | Umeda, K. | |
| dc.contributor.author | Hicks, T. V. | |
| dc.contributor.editor | Byrne, David N. | en_US |
| dc.contributor.editor | Baciewicz, Patti | en_US |
| dc.date.accessioned | 2012-03-08T18:50:47Z | |
| dc.date.available | 2012-03-08T18:50:47Z | |
| dc.date.issued | 2001-08 | |
| dc.identifier.uri | http://hdl.handle.net/10150/214925 | |
| dc.description.abstract | Studies were conducted to determine the optimum time to apply glyphosate to glyphosate-tolerant Lactuca sativa cv. Raider (head lettuce). The study was initiated near Yuma, Arizona in September 2000. Single applications of glyphosate at 1.0 lb AI/A were made to head lettuce at development stages of 2, 4, 6 and 8 leaves. Glyphosate treatments did not injure lettuce. A single application at the 2 or 4 leaf stage was optimal for near complete control of Portulaca oleracea (common purslane), Chenopodium murale (nettleleaf goosefoot), Malva parviflora (cheeseweed), and Leptochloa spp. (sprangletop). Later applications at the 6 or 8 leaf stages allowed weeds, especially, common purslane to compete with the crop. Treatments applied at the 2 or 4 leaf stages required the least amount of time to hand weed and resulted in highest fresh weight yields. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ) | en_US |
| dc.relation.ispartofseries | AZ1252 | en_US |
| dc.relation.ispartofseries | Series P-127 | en_US |
| dc.subject | Agriculture -- Arizona | en_US |
| dc.subject | Vegetables -- Arizona | en_US |
| dc.subject | Vegetables -- Weeds | en_US |
| dc.title | Timing of Glyphosate Application for Weed Control in Glyphosate Tolerant Lettuce | en_US |
| dc.type | text | |
| dc.type | Article | |
| dc.identifier.journal | Vegetable Report | en_US |
| refterms.dateFOA | 2018-06-25T01:18:21Z | |
| html.description.abstract | Studies were conducted to determine the optimum time to apply glyphosate to glyphosate-tolerant Lactuca sativa cv. Raider (head lettuce). The study was initiated near Yuma, Arizona in September 2000. Single applications of glyphosate at 1.0 lb AI/A were made to head lettuce at development stages of 2, 4, 6 and 8 leaves. Glyphosate treatments did not injure lettuce. A single application at the 2 or 4 leaf stage was optimal for near complete control of Portulaca oleracea (common purslane), Chenopodium murale (nettleleaf goosefoot), Malva parviflora (cheeseweed), and Leptochloa spp. (sprangletop). Later applications at the 6 or 8 leaf stages allowed weeds, especially, common purslane to compete with the crop. Treatments applied at the 2 or 4 leaf stages required the least amount of time to hand weed and resulted in highest fresh weight yields. |
