ISSN:
1573-5060
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Seed-coat color is an important agronomic character to determine the marketability of a dry bean variety. People in a location have a specific preference for certain colors of beans. It is known that many black bean varieties are superior in disease resistance and yielding capacity, and because of their seed-coat color, the cultivation is restricted in many bean growing areas. By treating the seeds of black bean varieties with EMS or gamma rays, it is possible to induce a range of seed-coat colors from white, yellow, to grey brown. Coupled with the screening technique described in this paper, it is practicable to isolate the seed-coat color mutants which correlate with green hypocotyl color at a very early stage of seedling development. Genetic tests showed that the induced mutants are due to single genetic locus changes from dominant to recessive. Thus, by using mutation breeding technique, homozygous lines of seed-coat color mutants can be achieved in the second selfed generation. The advantages of using the induced mutation technique for seed-coat color breeding in beans, as compared with the conventional hybridization method, are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00146782
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