1. Misinterpretations of results in weed research through inappropriate use of statistics
2. R. Cousens, 1991 .Aspects of the design and interpretation of competition (interference) experiments., Weed Technol, 5 :664 –673 .
3. M. R. Hall, C. J. Swanton, and G. W. Anderson .1992 .The critical period of weed control in grain corn (Zea mays)., Weed Sci, 40 :441 –447 .
4. L. Kasasian, and J. Seeyave .1969 .Critical periods for weed competition., PANS, 15 :208 –212 .
5. D. R. LaBonte, H. F. Harrison, and C. E. Motsenbocker .1999 .Sweetpotato clone tolerance to weed interference., Hortscience, 34 :2, 229 –232 .