Effect of plant roots on the germination of microsclerotia ofVerticillum dahliae |
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Authors: | L Mol H W van Riessen |
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Institution: | 1. Department of Agronomy, Wageningen Agricultural University, Haarweg 333, 6709 RZ, Wageningen, The Netherlands
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Abstract: | Root observation boxes were used to study the effects of hosts and non-hosts on the germination of microsclerotia ofV. dahliae. The effects of roots on microsclerotia were examined within a radius of 1 mm around the root tip. Host plants such as potato and field bean induced a higher percentage of germination of the microsclerotia than a non-host such as barley. A susceptible potato cultivar stimulated germination more than a resistant cultivar. The germination percentage and the number of hyphae per microsclerotium decreased with distance from the root surface regardless of the plant species or cultivar. |
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