Publication Date
1993
Description
White clover (Trifolium repens L.) cultivars grown in the USA are susceptible to many pathogens, pests and environmental stresses which have been shown to affect persistence adversely. The strategy used in our breeding programme is to first develop white clover populations resistant to individual pathogens and pests, and then incorporate this resistance into multiple-pest-resistant populations. Germplasms with resistance to peanut stunt virus (PSV), alfalfa mosaic virus (AMY), and clover yellow vein virus (CYVV), and with drought tolerance have been released. From these germplasms and other source materials, we have developed additional populations with resistance to southern root-knot nematode (Meloidogyne incognina) and AMV, and with tolerance to tall fescue allelopathy. Multiple-pest-resistant populations will be evaluated for grazing tolerance to produce a persistent white clover for the southeastern USA.
Citation
Pederson, G A.; Windham, G L.; McLaughlin, M R.; Pratt, R G.; and Brink, G E., "Breeding for Multiple Pest Resistance as a Strategy to Improve White Clover Persistence" (2024). IGC Proceedings (1993-2023). 23.
https://uknowledge.uky.edu/igc/1993/session22/23
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Breeding for Multiple Pest Resistance as a Strategy to Improve White Clover Persistence
White clover (Trifolium repens L.) cultivars grown in the USA are susceptible to many pathogens, pests and environmental stresses which have been shown to affect persistence adversely. The strategy used in our breeding programme is to first develop white clover populations resistant to individual pathogens and pests, and then incorporate this resistance into multiple-pest-resistant populations. Germplasms with resistance to peanut stunt virus (PSV), alfalfa mosaic virus (AMY), and clover yellow vein virus (CYVV), and with drought tolerance have been released. From these germplasms and other source materials, we have developed additional populations with resistance to southern root-knot nematode (Meloidogyne incognina) and AMV, and with tolerance to tall fescue allelopathy. Multiple-pest-resistant populations will be evaluated for grazing tolerance to produce a persistent white clover for the southeastern USA.
