ABSTRACT
Clover (Trifolium spp.) is an important forage crop worldwide; it is used not only as a forage species in the United States but also as a sustainable crop to manage agricultural pests. Research has been devoted recently to alternative uses, including the preference of white clover (T. repens) during the morning hours for Holstein-Friesian dairy cows (Rutter et al. 2004). White clover has also been found to be a low-cost method to remove diesel from contaminated soils in subarctic regions (Palmroth, Puhakka, and Pichtel 2002). An edible vaccine has been fused in transgenic white clover for shipping fever (Lee et al. 2003). Crimson clover in combination with hairy vetch used as a cover crop was successful in a no-tillage system without nitrogen fertilization and dryland conditions for seedless watermelon production (Rangappa, Bhardwaj, and Hamama 2002). Cabbage rotation with red clover (T. pretense) was effective in controlling weed (Ambrosia artemisiifolia) infestations
CONTENTS
7.1 Introduction ..........................................................................................................................207 7.2 Germplasm Collections ........................................................................................................208 7.3 Maintenance .........................................................................................................................208 7.4 Evaluation .............................................................................................................................208 7.5 Dissemination .......................................................................................................................209 7.6 Taxonomy .............................................................................................................................209 7.7 Application of Molecular Techniques to Characterize Genetic Diversity of Clover
Species .................................................................................................................................. 219 7.8 Gene Pools ............................................................................................................................220
