534 RAYMOND J. HOFF AND GERAL I. MCDONALD 



Bingham, R. T., R. J. Olson, W. A. Becker, and M. A. Marsden. 1969. 



Breeding blister rust resistant western white pine. V. Estimates of 



heritability , combining ability, and genetic advance based on tester 



matings. Silvae Genet. 18: 28-38. 

 Bingham, R. T., A. E. Squillace, and J . W. Duffield. 1953. Breeding 



blister-rust-resistant western white pine. J. Forest. 51: 163-168. 

 Bingham, R. T., A. E. Squillace, and J. W. Wright. 1960. Breeding 



blister rust resistant western white pine. II. First results of 



progeny tests including preliminary estimates of heritability and 



rate of improvement. Silvae Genet. 9: 33-41. 

 Borlaug, N. E. 1959. The use of multilineal or composite varieties to 



control airborne epidemic diseases of selfpollinated crop plants, p. 



12-27. In Proc. 1st Int. Wheat Genet. Symp . , Winnipeg. 268 p. 

 Borlaug, N. E. 1965. Wheat , rust, and people. Phytopathology 55: 



1088-1098. 

 Borlaug, N. E. 1966. Disease resistance, p. 327-458. In H. D. Gerhold, 



et at. (ed.), Breeding pest-resistant trees. Pergamon Press, 



Oxford. 505 p. 

 Fassi, B. 1960. La ruggine vescicolosa del pino strobo dovuta a 



Cvonavtivm vibioola. Monti e Boschi (7/8): 408-412. 

 Gaumann, E. 1950. Principles of plant infection. Crosby Lockwood and 



Son, Ltd, London. 543 p. 

 Harberd, D. J. 1964. Genecology and breeding for disease resistance, 



p. 127-135. In Scot. Plant Breeding Sta. Rec. 1964. 139 p. 

 Hooker, A. L. 1967. The genetics and expression of resistance in plants 



to rusts of the genus Puacinia. Annu. Rev. Phytopathol . 5: 163-182. 

 Kinloch, Bohon B., Jr., G. K. Parks, and C. W. Fowler. 1970. Resistance 



to white pine blister rust in sugar pine. Science 167: 193-195. 

 McDonald, Geral I. 1969. Resistance to Cvonavtivm vibicola J. C. Fisch. 



ex Rabenh. in Pinus montioola Dougl . seedlings. Ph.D. Thesis, Wash. 



State Univ. 74 p. 

 Mode, C. J. 1958. A mathematical model for the co-evolution of 



obligate parasites and their hosts. Evolution 12: 158-165. 

 Patton, R. F., and A. J. Riker. 1958. Blister rust resistance in 



western white pine, p. 46-51. In Proc. Fifth Northeast. Forest Tree 



Improv. Conf. 85 p. 

 Person, C. 1959. Gene-for-gene relationships in host-parasite systems. 



Can. J. Bot. 57: 1101-1130. 

 Person, C. 1968. Genetical adjustment of fungi to their environment, 



Vol. 3, p. 395-415. In G. C. Ainsworth and A. S. Sussman (ed.), 



The fungi, an advanced treatise. Academic Press, New York and 



London. 738 p. 

 Person, C. , D. J. Samborski, and R. Rohringer. 1962. The gene-for-gene 



concept. Nature 194: 561-562. 

 Peterson, R. S. 1960. Development of western gall rust in lodgepole 



pine. Phytopathology 50: 875-881. 

 Peterson, R. S. and F. P. Jewell. 1968. Status of American stem rusts 



of pine. Annu. Rev. Phytopathol. 5: 23-40. 

 Riker, A. J., T. F. Kouba, W. H. Brener, and L. E. Byam. 1943. White 



pine selections tested for resistance to blister rust. J. Forest. 



41: 753-760. 

 Schellenberg, D. H. C. 1904. Del Blasenrost der Arve . Naturw. Ztschr. 



f. Land- u. Forstw. 2: 233-241. 

 Spaulding, P. 1929. White-pine blister rust: A comparison of European 



with North American conditions. U. S. Dep. Agr. Tech. Bull 87 



58 p. 



