Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield
Dicamba and 2,4-D are among the most common and inexpensive herbicides used to control broadleaf weeds. However, different studies have pointed the risk of crop injury and grain sorghum yield reduction with postemergence applications of 2,4-D. No research data on grain sorghum response to 2,4-D or d...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Agriculture |
| Online Access: | http://dx.doi.org/10.1155/2016/9302507 |
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| author | Thierry E. Besançon Ranjit Riar Ronnie W. Heiniger Randy Weisz Wesley J. Everman |
| author_facet | Thierry E. Besançon Ranjit Riar Ronnie W. Heiniger Randy Weisz Wesley J. Everman |
| author_sort | Thierry E. Besançon |
| collection | DOAJ |
| description | Dicamba and 2,4-D are among the most common and inexpensive herbicides used to control broadleaf weeds. However, different studies have pointed the risk of crop injury and grain sorghum yield reduction with postemergence applications of 2,4-D. No research data on grain sorghum response to 2,4-D or dicamba exists in the Southeastern United States. Consequently, a study was conducted to investigate crop growth and yield response to 2,4-D (100, 220, and 330 g acid equivalent ha−1) and dicamba (280 g acid equivalent ha−1) applied on 20 to 65 cm tall sorghum. Greater stunting resulted from 2,4-D applied at 330 g acid equivalent ha−1 or below 45 cm tall sorghum whereas lodging prevailed with 2,4-D at 330 g acid equivalent ha−1 and dicamba applied beyond 35 cm tall crop. Regardless of local environmental conditions, 2,4-D applied up to 35 cm tall did not negatively impact grain yield. There was a trend for yields to be somewhat lower when 2,4-D was applied on 45 or 55 cm tall sorghum whereas application on 65 cm tall sorghum systematically decreased yields. More caution should be taken with dicamba since yield reduction has been reported as early as applications made on 35 cm tall sorghum for a potentially dicamba sensitive cultivar. |
| format | Article |
| id | doaj-art-2f5880c5bcb94e2e8ee48e29631346a1 |
| institution | Kabale University |
| issn | 2356-654X 2314-7539 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Agriculture |
| spelling | doaj-art-2f5880c5bcb94e2e8ee48e29631346a12025-02-03T01:01:15ZengWileyAdvances in Agriculture2356-654X2314-75392016-01-01201610.1155/2016/93025079302507Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and YieldThierry E. Besançon0Ranjit Riar1Ronnie W. Heiniger2Randy Weisz3Wesley J. Everman4Department of Plant Biology & Pathology, Rutgers University, New Brunswick, NJ 08901, USAAgriculture & Natural Resources Department, University of Minnesota, Crookston, MN 56716, USADepartment of Crop & Soil Sciences, North Carolina State University, Raleigh, NC 27695, USADepartment of Crop & Soil Sciences, North Carolina State University, Raleigh, NC 27695, USADepartment of Crop & Soil Sciences, North Carolina State University, Raleigh, NC 27695, USADicamba and 2,4-D are among the most common and inexpensive herbicides used to control broadleaf weeds. However, different studies have pointed the risk of crop injury and grain sorghum yield reduction with postemergence applications of 2,4-D. No research data on grain sorghum response to 2,4-D or dicamba exists in the Southeastern United States. Consequently, a study was conducted to investigate crop growth and yield response to 2,4-D (100, 220, and 330 g acid equivalent ha−1) and dicamba (280 g acid equivalent ha−1) applied on 20 to 65 cm tall sorghum. Greater stunting resulted from 2,4-D applied at 330 g acid equivalent ha−1 or below 45 cm tall sorghum whereas lodging prevailed with 2,4-D at 330 g acid equivalent ha−1 and dicamba applied beyond 35 cm tall crop. Regardless of local environmental conditions, 2,4-D applied up to 35 cm tall did not negatively impact grain yield. There was a trend for yields to be somewhat lower when 2,4-D was applied on 45 or 55 cm tall sorghum whereas application on 65 cm tall sorghum systematically decreased yields. More caution should be taken with dicamba since yield reduction has been reported as early as applications made on 35 cm tall sorghum for a potentially dicamba sensitive cultivar.http://dx.doi.org/10.1155/2016/9302507 |
| spellingShingle | Thierry E. Besançon Ranjit Riar Ronnie W. Heiniger Randy Weisz Wesley J. Everman Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield Advances in Agriculture |
| title | Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield |
| title_full | Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield |
| title_fullStr | Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield |
| title_full_unstemmed | Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield |
| title_short | Rate and Timing Effects of Growth Regulating Herbicides Applications on Grain Sorghum (Sorghum bicolor) Growth and Yield |
| title_sort | rate and timing effects of growth regulating herbicides applications on grain sorghum sorghum bicolor growth and yield |
| url | http://dx.doi.org/10.1155/2016/9302507 |
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