A Study of a Rosette-Resistant Groundnut Variety, Asirya Mwitunde

Loading...
Thumbnail Image
Date
1956/1957
Authors
Evans,A. C.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The variety Asirya Mwitunde has proved useful for combating rosette disease of groundnuts, which was so severe in the Urambo area farmed by the Tanganyika Agricultural Corporation that groundnut production ceased. In the Nachingwea area the disease threatened to eliminate production of the crop. The mechanism of resistance has been worked out (Evans, 1954). The vector of the disease, Aphiscraccivora koch, reproduces more slowly on this variety than on others, and a lower proportion of aphids feeding on diseased plants become infective. The variety shows some tolerance to the disease except in the early stages of growth. Furthermore, it produces dormant seeds, so that volunteers do not appear Immediately after harvest to carry virus and vector through the dry season into the next rainy season.
Description
Keywords
Citation
East African Agricultural And Forestry Journal, 22 (No 3), p. 27-31
Collections