Comparative study on protein content in different white clover varieties

The protein content of leaf and whole plant of ten different white clover varieties were analyzed at different growth stages. The result showed that the difference of white clover protein contents among varieties or growth stages was significant (P0.01). The seasonal dynamics of protein contents of all varieties exhibited a single peak pattern, and the peak appeared in early flowering stage. Haifa, Hankou and Guizhou wildness ecotype were suitable for Beijing area and the optimal utilization time is early flowering period.