Table 2.

T-test assuming unequal variances among the 2 agro-climatic origins.

Parameter	Arid Semi-Arid	Tropical Subtropical
Mean	45.413	51.838
Variance	82.922	118.403
Observations	246	38
Hypothesized Mean Difference	0.000	-
df	45	-
t Stat	−3.458	-
P(T ≤ t) two-tail	0.001	-
t Critical two-tail	2.014	-