Berkowitz, A. R.
1988. Competition for resources in weed–crop mixtures. Pages 89-120
Altieri, M. A. and Liebman, M., eds. Weed Management in Agroecosystems: Ecological Approaches. Boca Raton, FL: CRC Press.
Callaway, M. B.
1990. A compendium of crop varietal tolerance to weeds. Am. J. Alternative Agric.
Callaway, M. B. and Forcella, F.
1992. Crop tolerance to weeds. Pages 100-131
Callaway, M. B. and Francis, C. A., eds. Crop Improvement for Sustainable Agriculture Systems. Lincoln NE: University of Nebraska Press.
1994. Crop weed competition and herbicide performance in cereal species and varieties. Weed Res.
1985. A simple model relating yield loss to weed density. Ann. Appl. Biol.
Cousens, R. D. and Fletcher, D. J.
1990. Experimental design for screening competitiveness of crop cultivars. Pages 163-165
in Proceedings of the 9th Australian Weeds Conf. Adelaide, S. Australia: Crop Science Society of Australia, with assistance from the Wheat Research Council of Australia.
Duvick, D. N.
1992. Cenetic contributions to advances in yield of U.S. maize. Maydica
1987. Tolerance of weed competition associated with high leaf atea expansion rate in tall fescue. Crop Sci.
Jennings, P. R. and Aquino, R. C.
1968. Studies on competition in rice. III. Mechanisms of competition among phenotypes. Evolution
1993. Prospects for weed control through crop interference. Ecol. Appl.
Kropff, M. J. and van Laar, H. H.
1993. Modelling crop–weed interactions. Wallingford, Great Britain: CAB International and the International Rice Research Institute. 274 p.
Lemerle, D., Verbeek, B., and Coombes, N. E.
1996. Interaction between wheat (Triticum aestivum) and diclofop to reduce the cost of annual ryegrass (Lolium rigidum) control. Weed Sci.
1980. Response of plants to environmental stresses. 2nd ed, Volume 2. New York: Academic Press. 607 p.
Lindquist, J. L.
1997. An Ecophysiological Approach to Understanding Corn Tolerance and Velvetleaf Suppressive Ability. Ph.D. thesis. University of Nebraska, Lincoln, NE. 156 p.
Lindquist, J. L. and Kropff, M. J.
1996. Applications of an ecophysiological model for irrigated rice (Oryza sativa)– Echinochloa competition. Weed Sci.
Lindquist, J. L., Mortensen, D. A., Clay, S. A., Schmenk, R., Kells, J. J., Howatt, K., and Westra, P.
1996. Stability of corn (Zea mays)–velvetleaf (Abutilon theopbrasti) interference relationships. Weed Sci.
Lindquist, J. L., Mortensen, D. A., and Johnson, B. E.
1998. Mechanisms of corn tolerance and velvetleaf suppressive ability. Agron. J. In press.
Lotz, L.A.P., Christensen, S., Cloutier, D., er al. 1996. Prediction of the competitive effects of weeds on crop yields based on the relative leaf area of weeds. Weed Res.
McLachlan, S. M., Tollenaar, M., Swanton, C. J., and Weise, S. F.
1993. Effect of corn-induced shading on dry matter accumulation, distribution, and architecture of redroot pigweed (Amaranthus retroflexus)
. Weed Sci.
Murphy, S. D., Yakubu, Y., Weise, S. F., and Swanton, C. J.
1996. Effect of planting patterns and inter-row cultivation on competition between corn (Zea mays) and late emerging weeds. Weed Sci.
Ottman, M. J. and Welch, L. F.
1989. Planting patterns and radiation interception, plant nutrient concentration, and yield in corn. Agron. J.
Ratkowsky, D. A.
1983. Nonlinear regression modeling: a unified practical approach. New York: Marcel Dekker. 276 p.
1992. Efficacy of reduced herbicide doses in spring cereals of different competitive ability. Weed Res.
Staniforth, D. W.
1961. Responses of corn hybrids to yellow foxtail competition. Weeds
Swinton, S. M., Buhler, D. D., Forcella, F., Gunsolus, J. L., and King, R. P.
1994. Estimation of crop yield loss due to interference by multiple weed species. Weed Sci.
Tetio-Kagho, F. and Gardner, F. P.
1988. Responses of maize to plant population density. I. Canopy development, light relationships, and vegetative growth. Agron. J.
Tollenaar, M., Dibo, A. A., Aguilera, A., Wiese, S. F., and Swanton, C. J.
1994a. Effect of crop density on weed interference in maize. Agron. J.
Tollenaar, M., Nissanka, S. P., Aguilera, A., Weise, S. F., and Swanton, C. J.
1994b. Effect of weed interference and soil nitrogen on four maize hybrids. Agron. J.
Tollenaar, M., Aguilera, A., and Nissanka, S. P.
1997. Grain yield is reduced more by weed interference in an old than in a new maize hybrid. Agron. J.
Wicks, G. A., Ramsel, R. E., Nordquist, P. T., Schmidt, J. W., and Challaiah, . 1986. Impact of wheat cultivars on esrablishmenr and suppression of summer annual weeds. Agron. J.
Williams, W. A., Loomis, R. S., Duncan, W. G., Dovrat, A., and Nunez, F. A. 1968. Canopy architecture at various population densities and the growth and grain yield of corn. Crop Sci.