Fig. 4. Effects of sampling month on Tifway bermudagrass root dry weight in 1998. Single degree of freedom contrasts were generated with SAS GLM Proc. *** at P 
0.01 and nonsignificant (NS) at P > 0.05.
Fig. 4. Effects of sampling month on Tifway bermudagrass root dry weight in 1998. Single degree of freedom contrasts were generated with SAS GLM Proc. *** at P 0.01 and nonsignificant (NS) at P > 0.05.