Table 4.

Effect of cultivar (Diana—D and Kabiria—K) and growing-media matric potential (P) on water (Ψ_i), osmotic (Ψ_o), and turgor (Ψ_t) pre-dawn potential and noon water potential on covered leaf (Ψ_x) of subirrigated soilless tomato under controlled water stress conditions.

Cultivar-Water potential (hPa)	Ψi	Ψo	Ψt	Ψx
	(MPa)
D-P30	−0.263	−0.953	0.690	−0.280
D-P60	−0.353	−1.023	0.669	−0.483
K-P30	−0.247	−0.922	0.675	−0.313
K-P60	−0.327	−1.021	0.694	−0.457
K-P90	−0.510	−1.093	0.583	−0.733
Significance of contrastsa
30 vs. 60 hPa	*	**	ns	**
D vs. K	ns	ns	ns	ns
(D vs. K)*(30 vs. 60 hPa)	ns	ns	ns	ns
T (K) linear	**	**	ns	***
T (K) quadratic	ns	ns	ns	ns

^aF significance: ns, ^***, ^**, and ^*, respectively, non-significant, P ≤ 0.001, P ≤ 0.01 and P ≤ 0.05.