Effect of Soil Moisture Deficit Stress on Biomass Accumulation of Four Coffee (Coffea arabica) Varieties in Zimbabwe

Table 7

Pearson correlation coefficients (𝑟) between initial biomass of some coffee physiological variables and changes in mass of varieties after stress.

Variable’s initial biomass	Variable responding after stress	21 days		28 days
		Fresh	Dry	Fresh	Dry
Fresh root	Roots	0.855	0.788	0.936	0.81
Dry root		0.657	0.597	0.968	0.964
Fresh shoots	Shoots	0.974	0.784	−0.666	0.736
Dry shoots		0.968	0.772	−0.666	0.726
Fresh total	Total	0.960	0.827	0.440	0.766
Dry total		0.914	0.872	0.550	0.835
Fresh root	Shoots	−0.818	−0.889	0.394	−0.844
Dry roots		−0.790	−0.936	0.300	−0.904
Fresh root	Total	−0.83	−0.912	−0.625	−0.827
Dry root		−0.797	−0.952	−0.718	−0.889
Fresh shoots	Total	0.265	0.293	0.290	0.385
Dry shoots		0.330	0.364	0.338	0.450