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Inheritance of Curly Top Disease Reaction in the Bean, Phaseolus Vulgaris 1
Author(s) -
Schultz Herman K.,
Dean Leslie L.
Publication year - 1947
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1947.00021962003900010005x
Subject(s) - phaseolus , automatic summarization , reading (process) , inheritance (genetic algorithm) , biology , horticulture , philosophy , computer science , artificial intelligence , genetics , linguistics , gene
L published information is available on the inheritance of resistance in beans to the curly top virus. A knowledge of the mode of inheritance of disease reaction is essential in the development of a logical bean-breeding program for disease resistance. It seems worthwhile to summarize and record at present such information as has been accumulated by the Idaho Agricultural Experiment Station even though more work on inheritance appears necessary. The many data obtained from breeding studies on the development of curly top resistant varieties and from a special genetic study are indicative of the mode of inheritance of curly top disease reaction for certain bean varieties. Bean breeding and testing programs have given much emphasis to the sugar beet curly top disease since its importance in bean production was emphasized in ~925 (~).~ Sugar beet researches had already established curly top as a virus disease and its relationship to the beet leafhopper. Breeding for curly top disease resistance in sugar beet varieties (2, 3, 5, ~, ~2) was more difficult than in beans (5, 8, 9, ~4, ~5) because the sugar beet is a naturally cross-pollinated plant usually necessitating the employment of some sort of inbreeding to obtain homozygous resistant stocks, while the bean is a naturally self-pollinated plant. Also, highly resistant and desirable sugar beet strains were not readily available, while in beans Red Mexican, a resistant variety, was immediately at hand. Host plants of curly top include tomatoes, squash, and other vegetables, as well as numerous species of wild mustards and Russian thistle (4, ~6, ~ 7, ~8, 2o). Along with the nearness of susceptible hosts, time of planting, location of bean growing areas, and other physical factors were studied for the control of curly top (7, 8, 9, ~o, 20) as aid to western bean production. Breeding for disease resistance through hybridization appeared to be the logical approach to the program of control (~5, ~9)The data for the analysis of the mode inheritance of disease reaction reported here were obtained from several bean-breeding studies carried out over a period of years in southern Idaho.