Physiological studies on the genus Trifolium with special reference to the South African species. 2. Influence of root temperature on growth, nodulation and symbiotic nitrogen fixation
Small, J.G.C.; Joffe, A.
S. Afr. J. agric. Sci 11(1): 41-56
Clovers of (a) European origin (T. pratense and T. repens) and (b) varieties of local T. africanum were grown in plastic containers under night soil. temperatures of 12.45 degrees C, N content in (a) and (b) plants supplied with mineral N was highest at 19.33 degrees ; at 40 degrees it was reduced to 37.64% of the highest content and at 45 degrees to 0.7.8.5%.