Table 3.

Correlation between genetic diversity at the Isa locus of wild barley and 16 environmental variables for six locations across Israel

Variable	r	P	Number of sites
Long(E)	−0.0960	0.8200	8
Lat(N)	−0.7950	0.0180	8
Alt, m	−0.5300	0.1770	8
Tm, °C	0.6140	0.1060	8
Ta, °C	0.6750	0.0660	8
Tj, °C	0.5300	0.1770	8
Td, °C	0.1200	0.8220	6
Tdd, °C	0.8020	0.0550	6
Sh, #	0.1540	0.8050	6
Trd, #	0.7940	0.0590	6
Rn, mm	-0.8920	0.0029	8
Rd, #	-0.8700	0.0240	6
Hu14	-0.6750	0.0660	8
Hua	-0.9280	0.0077	6
Dw, #	0.0580	0.9130	6
Ev	0.9860	0.0003	6

Numbers in the second column are the correlation coefficient (r) with the corresponding statistical significance (P values) in the third column. Long(E), longitude east; Lat(N), latitude north; Alt, altitude, Tm, mean annual temperature; Ta, mean temperature in August; Tj, mean temperature in January; Td, mean seasonal temperature difference; Tdd, mean diurnal temperature difference; Sh, mean number of hot and dry days; Trd, mean number of tropical days; Rn, mean annual rainfall; Rd, mean number of rainy days; Hu14, mean humidity at 1400 hours; Hua, mean annual humidity; Dw, mean number of dewy nights in summer; Ev, mean annual evaporation.