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Weed Seedling Emergence and Survival as Affected by Crop Canopy

  • Randy L. Anderson (a1)

Abstract

This study measured impact of cool-season crops on seedling emergence, survival, and seed production of weeds common in corn and soybean. Weed dynamics were monitored in permanently marked quadrats in winter wheat, spring wheat, and canola. Three species, green foxtail, yellow foxtail, and common lambsquarters, comprised more than 80% of the weeds observed in the study. Seedling emergence was reduced by winter wheat, but not by spring wheat or canola, when compared with adjacent quadrats without a crop canopy. Approximately 10% of seedlings in spring wheat and canola developed into seed-bearing plants, but no seed-bearing plants were present in winter wheat at harvest. Common lambsquarters produced more than 1,100 seeds/plant, whereas a foxtail plant produced 85 seeds, averaged across spring wheat and canola. At harvest, new seedlings were present in all crops; thus, control after harvest will be required to prevent seed production in the fall. Winter wheat may provide an opportunity to disrupt population dynamics of weeds common in corn and soybean without requiring herbicides.

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Anderson, R. L. 2003. An ecological approach to strengthen weed management in the semiarid Great Plains. Adv. Agron 80:3362.
Anderson, R. L. 2004. Sequencing crops to minimize selection pressure for weeds in the Central Great Plains. Weed Technol 18:157164.
Anderson, R. L. 2005. A multi-tactic approach to manage weed populations in crop rotations. Agron. J. 97:15791583.
Anderson, R. L. 2007. A changing perspective with weed management in semi-arid cropping systems. Ann. Arid Zone 46:115.
Anderson, R. L. 2008a. Growth and yield of winter wheat as affected by preceding crop and crop management. Agron. J. 100:977980.
Anderson, R. L. 2008b. Seedling Emergence of Yellow Woodsorrel in Eastern South Dakota. Pages 152153. in. 2008 Western Society for Weed Science Research Rep. Las Cruces, NM: Western Society of Weed Science.
Anderson, R. L. 2008c. Diversity and no-till: keys for pest management in the U.S. Great Plains. Weed Sci 56:141145.
Dick, W. A. and Van Doren, D. M. Jr. 1985. Continuous tillage and rotation combinations effects on corn, soybean, and oat yields. Agron. J. 77:459465.
Doust, L. L., MacKinnon, A., and Doust, J. L. 1985. Biology of Canadian weeds. 71. Oxalis stricta L., O. corniculata L., O. dillenii Jacq. ssp. dillenii and O. dillenii Jacq. ssp filipes (Small) Eiten. Can. J. Plant Sci 65:691709.
Egley, G. H. 1986. Stimulation of weed seed germination in soil. Rev. Weed Sci 2:6789.
Gibson, K. D., Johnson, W. G., and Hilger, D. E. 2006. Farmer perceptions of weed problems in corn and soybean rotations. Weed Technol 20:751755.
Heap, I. 2007. The International Survey of Herbicide Resistant Weeds. Web page: www.weedscience.com. Accessed May 15, 2007.
Kropff, M. J. and Walter, H. 2000. EWRS and the challenges for weed research at the start of the new millennium. Weed Res 40:710.
Kruk, B., Insausti, P., Razul, A., and Benech-Arnold, R. 2006. Light and thermal environments as modified by a wheat crop: effects on weed seed germination. J. Appl. Ecol 43:227236.
Lemerle, D., Verbeek, B., Cousens, R. D., and Coombes, N. E. 1996. The potential for selecting wheat varieties strongly competitive against weeds. Weed Res 36:505513.
Levine, E., Spencer, J. L., Isard, S. A., Onstad, D. W., and Gray, M. E. 2002. Adaptation of the western corn rootworm to crop rotation: evolution of a new strain in response to a management practice. Am. Entomol 48:94107.
Miller, D. R., Chen, S. Y., Porter, P. M., Johnson, G. A., Wyse, D. L., Stetina, S. R., Klossner, L. D., and Nelson, G. A. 2006. Rotation crop evaluation for management of soybean cyst nematode in Minnesota. Agron. J. 98:569578.
Mohler, C. L. and Calloway, M. B. 1992. Effects of tillage and mulch on the emergence and survival of weeds in sweet corn. J. Appl. Ecol 29:2134.
Mortensen, D. A., Bastiaans, L., and Sattin, M. 2000. The role of ecology in the development of weed management systems: an outlook. Weed Res 40:4962.
[NASS] National Agricultural Statistics Service 2007. South Dakota Agriculture. Web page: www.nass.usda.gov/sd. Accessed July 26, 2007.
Sagar, G. R. and Mortimer, A. M. 1976. An approach to the study of the population dynamics of plants with special reference to weeds. Adv. Appl. Biol 1:147.
Zhang, J., Hamill, A. S., and Weaver, S. E. 1996. Corn yields after 10 years of different cropping sequences and weed management practices. Can. J. Plant Sci 76:795797.

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Weed Seedling Emergence and Survival as Affected by Crop Canopy

  • Randy L. Anderson (a1)

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