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Cotton is one of the most drought-tolerant crops grown in the southern US. It has been a traditional dryland crop in the South for many years due to its ability to compensate in adverse environments. However, there are key periods of cotton growth that benefit from sufficient moisture and cotton can respond to adequate water by producing yields proportional to rainfall or irrigation. The purpose of this research demonstration was to evaluate the response of four Deltapine® cotton varieties to irrigation and identify products that are well-suited to dryland conditions and/or stressed environments.
In 2011, a study was conducted at the Scott Learning Center to evaluate the response of four Deltapine cotton varieties to two irrigation treatments. Four varieties were planted on April 15 in 0.33 acre plots (24 rows wide x 200ft) with two replications. Irrigation treatments were dryland and furrow irrigated. Agronomic practices were in alignment with local standards. PGR was applied as needed. Furrow irrigation was used as needed in irrigated plots. Approximately 10 inches of rainfall occurred in the plots in 8 to 10 events throughout the growing season. Several multi-week periods without rain occurred during the season. Plots were harvested on October 18.
The response of DP 1044 B2RF variety to irrigation indicates that it could potentially be a product well adapted for dryland conditions and stressful production environments such as double cropping and droughty or thin soils.
Drought is considered a leading cause of yield loss in cotton. Considering the expense of irrigation, identifying cotton varieties that may be able to use water more efficiently or compensate better in dry conditions, can help maximize cotton yield potential and profitability.
The information discussed in this report is from a single site, non65533;?replicated, one65533;?year demonstration. This informational piece is designed to report the results of this demonstration and is not intended to infer any confirmed trends. Please use this information accordingly.
Source: Edmisten, K., Crawford, J., and Bader, M. 2007. Drought Management for Cotton Production. [Online] http://www.ces.ncsu.edu; McWilliams, D. 2003. Drought Strategies for Cotton. Circular 582.[Online] http://aces.nmsu.edu. Monsanto Company is a member of Excellence Through Stewardship® (ETS). Monsanto products are commercialized in accordance with ETS Product Launch Stewardship Guidance, and in compliance with Monsanto’s Policy for Commercialization of Biotechnology-Derived Plant Products in Commodity Crops. Commercial product(s) has been approved for import into key export markets with functioning regulatory systems. Any crop or material produced from this product can only be exported to, or used, processed or sold in countries where all necessary regulatory approvals have been granted. It is a violation of national and international law to move material containing biotech traits across boundaries into nations where import is not permitted. Growers should talk to their grain handler or product purchaser to confirm their buying position for this product. Excellence Through Stewardship® is a registered trademark of Biotechnology Industry Organization. Individual results may vary, and performance may vary from location to location and from year to year. This result may not be an indicator of results you may obtain as local growing, soil and weather conditions may vary. Growers should evaluate data from multiple locations and years whenever possible. ALWAYS READ AND FOLLOW PESTICIDE LABEL DIRECTIONS. Technology Development by Monsanto and Design® are trademarks of Monsanto Technology LLC. Deltapine® is a registered trademark of Monsanto Company. ©2011 Monsanto Company.