Inheritance of reaction to Pseudomonas lachrymans in pickling cucumber |
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Authors: | J M Dessert L R Baker J F Fobes |
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Institution: | (1) Department of Horticulture, Michigan State University, 48824 East Lansing, MI, USA |
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Abstract: | Summary Cucumber (Cucumis sativus) lines resistant to angular leafspot caused by Pseudomonas lachrymans react to an infection by developing necrotic lesions that lack the chlorotic halo characteristic of the susceptible reaction. The inheritance of the non-halo lesion reaction was studied in all possible crosses between resistant lines MSU 9402 and Gy 14A, and susceptible cultivars Wisc. SMR 18 and National Pickling. Genetic analysis of the F1, F2, backcross and F3 populations revealed that the non-halo lesion type, associated with resistance, was controlled by a single recessive gene, pl. This character appears to be an important component of resistance to P. lachrymans. |
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Keywords: | Cucumis sativus pickling cucumber Pseudomonas lachrymans angular leafspot disease resistance vegetable genetics |
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