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Cultivar Mixtures


References

Bowden, R., J. Shoyer, K. Roozeboom, M. Claasen, P. Evans, B. Gordon, B. Heer, K. Janssen, J. Long, J. Martin, A. Schlegel, R. Sears, and M. Witt. 2001. Performance of wheat variety blends in Kansas. Kansas State University Agric. Extension Bull. 128 (www.oznet.ksu.edu/library/crpsl2/SRL128.pdf)

Browning, J. A., and K. J. Frey. 1981. The multiline concept in theory and practice. Pages 37-36 in: Strategies for the control of cereal disease, Jenkyn J. F., and Plumb, R. T., eds. Blackwell Scientific, London.

Calonnec, A., H. Goyeau, and C. de Vallavieille-Pope. 1996. Effects of induced resistance on infection efficiency and sporulation of Puccinia striiformis on seedlings in varietal mixtures and on field epidemics in pure stands. Euro. J. Plant Pathol. 102:733-741.

Chin, K. M., and M.S. Wolfe. 1984. The spread of Erysiphe graminis f.sp. hordei in mixtures of barley varieties. Plant Pathol. 33:89-100.

Cox C.M., K.A. Garret, R.L. Bowden, A.K. Fritz, S.P. Dendy, and W.F. Heer, 2004. Cultivar mixtures for the simultaneous management of multiple diseases: tan spot and leaf rust of wheat. Phytopathology 94: 961-969.

Fitt, B.D.L., and H.A. McCartney. 1986. Spore dispersal in relation to epidemic models. Pages 311-345 in: Plant disease Epidemiology, Volume 1, Leonard, K. J., and W.E. Fry, eds. McMillan, New York.

Gacek E., 1997. Summarized variety mixture information given to polish farmers. In: Variety Mixtures in theory and practice, Wolfe, M. S., ed. European Union Variety and Species Mixtures working group of COST Action 817. Online at: http://www.scri.ac.uk/research/pp/pestanddisease/rhynchosporiumonbarley/otherwork/cropmixtures/varietymixtures

Garrett, K. A., and C.C. Mundt. 1999. Epidemiology in mixed host populations. Phytopathology 89:984-990.

Jeger M.J., Griffiths E., and Jones D.G., 1981a. Disease progress of non-specialized fungal pathogens in intraspecific mixed stands of cereal cultivars. I. Models. Ann. Appl. Biol. 98: 197-198.

Jeger M.J., Griffiths E., and Jones D.G., 1981b. Disease progress of non-specialized fungal pathogens in intraspecific mixed stands of cereal cultivars. II. Field experiments. Ann. Appl. Biol. 98: 199-210.

Lannou C. 2001. Intrapathotype diversity for aggressiveness and pathogen evolution in cultivar mixtures. Phytopathology 91: 500-510.

Lannou C., C. de Vallavieille-Pope, C. Biass, and H. Goyeau. 1994. The efficacy of mixtures of susceptible and resistant hosts in two wheat rusts of different lesion size: controlled condition experiments and computerized simulations. J. Phytopathol. 140:227-237.

Lannou C., C. de Vallavieille-Pope, and H. Goyeau. 1995. Induced resistance in host-mixtures and its effect on disease control in computer-simulated epidemics. Plant Pathol. 44:478-489.

Lannou, C., and C. de Vallavieille-Pope. 1997. Mechanisms of variety mixtures for reducing epidemics. In: Variety Mixtures in theory and practice, Wolfe, M. S., ed. European Union Variety and Species Mixtures working group of COST Action 817. Online at: http://www.scri.ac.uk/research/pp/pestanddisease/rhynchosporiumonbarley/otherwork/cropmixtures/varietymixtures

Lannou C., and C.C. Mundt. 1997. Evolution of a pathogen population in host mixtures: rate of emergence of complex races. Theor. Appl. Genet. 94: 991-999.

Leonard, K. L. 1969. Factors affecting rates of stem rust increase in mixed plantings of susceptible and resistant oat varieties. Phytopathology 59:1845-1850.

Martinelli, J. A., J. K. M. Brown, and M. S. Wolfe. 1993. Effects of barley genotype on induced resistance to powdery mildew. Plant Pathol. 42:195-202.

Merz, U., and D. Valenghi. 1997. "Extenso" production and cereal mixtures in Switzerland. In: Variety Mixtures in theory and practice, Wolfe, M. S., ed. European Union Variety and Species Mixtures working group of COST Action 817. Online at: http://www.scri.ac.uk/research/pp/pestanddisease/rhynchosporiumonbarley/otherwork/cropmixtures/varietymixtures

Moreno Ruiz G., and Castillo Zapata, J. 1990. The Variety Colombia: A variety of coffee with resistance to rust (Hemileia vastatrix Berk. And Br.). CENICAFE, Chinchina-Caldas, Colombia.

Munk, L. 1997. Variety mixtures: 19 years of experience in Denmark. In: Variety Mixtures in theory and practice, Wolfe, M. S., ed. European Union Variety and Species Mixtures working group of COST Action 817. Online at: http://www.scri.ac.uk/research/pp/pestanddisease/rhynchosporiumonbarley/otherwork/cropmixtures/varietymixtures

Mundt, C. C. 1989. Modeling disease increase in host mixtures. Pages 150-181 in: Plant Disease Epidemiology, Volume 2, Leonard, K. J., and Fry, W. E., eds. McGraw Hill, New York.

Mundt, C. C. 1994. Use of host genetic diversity to control cereal diseases: implications for rice blast. Pages 293-308 in: Rice Blast Disease, Zeigler, R. S., Leong, S. A., and Teng, P. S., eds. CAB International, London.

Mundt, C.C. 2002. Use of multiline cultivars and cultivar mixtures for disease management. Annu. Rev. Phytopathology 40: 381-410.

Mundt, C. C., and J. A. Browning. 1985. Development of crown rust epidemics in genetically diverse oat populations: effect of genotype unit area. Phytopathology 75:607-610.

Mundt, C. C., and K. J. Leonard. 1986. Effect of host genotype unit area on development of focal epidemics of bean rust and common maize rust in mixtures of resistance and susceptible plants. Phytopathology 76:590-598.

Mundt, C.C., P.M. Hayes, and C. C. Schon. 1994. Influence of barley mixtures on severity of scald and net blotch and on yield. Plant Pathology 43: 356-361.

Newton, A. C., R. P. Ellis, C. A. Hackett, and D.C. Guy. 1997. The effect of component number on Rynchosporium secalis infection and yield in mixtures of winter barley cultivars. Plant Pathol. 45:930-938.

Ngugi H.K., S.B. King, J. Holt, and M. Julian, 2001. Simultaneous temporal progress of sorghum anthracnose and leaf blight in crop mixtures with disparate patterns. Phytopathology 91: 720-729.

Wolfe, M. S. 1985. The current status and prospects of multiline cultivars and variety mixtures for disease control. Annu. Rev. Phytopathology 23:251-273.

Wolfe M.S., 1988. The use of variety mixtures to control disease and stabilize yield. Pages 91-100 in: Breeding strategies for resistance to the rust of wheat, Simmonds, N. W., and Rajaram, S., eds. CIMMYT, Mexico.

Wolfe M.S., 1992. Barley diseases: maintaining the value of our varieties. Pages 1055-1067 in: Barley Genetics Vol. VI, Munk, L., ed. Munksgaard International, Copenhagen.

Wolfe M.S., 1997. Variety mixtures: concept and value. In: Variety Mixtures in theory and practice, Wolfe, M. S. (ed.). European Union Variety and Species Mixtures working group of COST Action 817. Online at: http://www.scri.ac.uk/research/pp/pestanddisease/rhynchosporiumonbarley/otherwork/cropmixtures/varietymixtures

Zhu, Y., H. Chen, J. Fan, Y. Wang, Y. Li, J. Chen, J. X. Fan, S. Yang, L. Hu, H. Leung, T. W. Mew, P. Teng, Z. Wang, and C. C. Mundt. 2000. Genetic diversity and disease control in rice. Nature 406: 718-722.

Zhu, Y., H. Fang, Y. Wang, J. Fang, S. Yang, T.W. Mew, and C.C. Mundt. 2005. Panicle blast and canopy moisture in rice cultivar mixtures. Phytopathology 95: 433-438.

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Contents

Introduction


What is a cultivar mixture?

Mechanisms by which cultivar mixtures suppress disease

Effect of cultivar mixtures on epidemic development

Effect of Cultivar mixtures on the evolution of pathogen races or pathotypes

 Crops and diseases suited to cultivar mixtures

 Use of cultivar mixtures to manage multiple diseases

How many cultivars make a good mixture?

Reported successes with cultivar mixtures

Agronomic considerations

References

 


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