Publication Date
1993
Description
Using a greenhouse screening technique, 200 plant introduction Jines of white clover (Trifolium repens L.) and red clover (T. pratense L.) germplasm were evaluated for resistance to cylindrocladium root rot incited by Cyl/11drocladium crotalariae (Loos) Bell & Sobers. In general, white clover germplasm had much higher levels of resistance than red clover. Over 60% of white clover introductions had 30% or greater resistance to cylindrocladium root rot, with 21 % of the lines possessing more than 40% resistant plants. No relationship was found between level of resistance and geographic origin for white clover. Red clover was more susceptible to this fungus with an average percentage resistance of only I 0% and a majority oflines had less than 10% resistance. More germplasm of both species, but particularly of red clover, should be evaluated for response to this pathogen in order to identify other sources of resistance.
Citation
Wofford, D S. and Quesenberry, K H., "Screening Trifolium repens L. and T. pratense L. germplasm for Resistance to Cylindrocladium crotalariae (Loos) Bell & Sobers" (2024). IGC Proceedings (1993-2023). 15.
https://uknowledge.uky.edu/igc/1993/session9/15
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Screening Trifolium repens L. and T. pratense L. germplasm for Resistance to Cylindrocladium crotalariae (Loos) Bell & Sobers
Using a greenhouse screening technique, 200 plant introduction Jines of white clover (Trifolium repens L.) and red clover (T. pratense L.) germplasm were evaluated for resistance to cylindrocladium root rot incited by Cyl/11drocladium crotalariae (Loos) Bell & Sobers. In general, white clover germplasm had much higher levels of resistance than red clover. Over 60% of white clover introductions had 30% or greater resistance to cylindrocladium root rot, with 21 % of the lines possessing more than 40% resistant plants. No relationship was found between level of resistance and geographic origin for white clover. Red clover was more susceptible to this fungus with an average percentage resistance of only I 0% and a majority oflines had less than 10% resistance. More germplasm of both species, but particularly of red clover, should be evaluated for response to this pathogen in order to identify other sources of resistance.
