240 MUTATION AND PLANT BREEDING 



source in cross-breeding programs. Selection of small mutations 

 involves more work than that of large mutations. Yet, mutation 

 breeding proper might offer the greatest advantage as compared 

 with conventional cross-breeding. Further theoretical and practical 

 work will serve a final evaluation of mutation breeding. 



References 



1. Anderson, E. G., Longley, A. E., Li, C. H., and Retherford, K. L. 



1949. Hereditary effects produced in maize by radiation from 

 the Bikini atomic bomb: I. Studies on seedlings and pollen of 

 the exposed generation. Genetics, 34: 639-646. 



2. Bandlow, G. 1951. Mutationsversuche an Kulturpflanzen: II. 



Zuchterisch wertvolle Mutanten bei Sommer- und Winterger- 

 sten. Ziichter, 21: 357-363. 



3. Baur, E. 1924. Untersuchungen iiber das Wesen, die Entstehung 



und die Vererbung von Rassenunterschieden bei Antirrhinum 

 majus. Bibliotheca Genetica, 4: 1-170. 



4. Bekendam, }. 1961. Inductie van mutaties bij rijst door rontgen- 



bestraling (X-ray-induced mutations in rice). Meded. Land- 

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5. . 1961. X-ray induced mutations in rice. Symposium on 



the Effects of Ionizing Radiation on Seeds and their Significance 

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of induced mutations in peas: I. Methodological investigations. 

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7. , , . 1960. Quantitative studies of induced 



mutations in peas: III. Mutagenic effect of ethyleneimine. Agr. 

 Hort. Genetica, 18: 109-123. 



8. Borg, G., Froier, K., and Gustafsson, A. 1958. Pallas barley, a 



variety produced by ionizing radiation: Its significance for plant 

 breeding and evolution. 2nd. Intern. Conf. on the Peaceful Uses 

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9. Brock, R. D. 1957. Mutation plant breeding. Jour. Aust. Inst. Agr. 



Sci., 23: 39-50. 



10. Bruns, A. 1954. Die Auslosung von Mutationen durch Rontgen- 



bestrahlung ruhender Samen von Trifolium pratense. Angeiv. 

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11. Buzzati-Traverso, A. A., and Scossiroli, R. E. 1959. X-ray induced 



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