Table 3. Effect of population origin on Crotalaria pallida resistance traits at a regional scale.

Source	d.f.	Mean squares	F-ratio	P
(A) PAs concentration *
Population	2	1.310	4.32	0.019
Error	43	0.303
(B) Carbon content
Population	2	0.578	1.246	0.298
Error	43	0.464
(C) Nitrogen content
Population	2	0.278	2.378	0.105
Error	43	0.117
(D) Trichome density
Population	2	0.163	1.594	0.209
Error	87	0.102

(A) pyrrolizidine alkaloids (PAs) in green seeds, (B) carbon content of green seeds, (C) nitrogen content of green seeds, and (D) trichome density on leaves. Plants were grown in a common greenhouse environment and are from three localities in São Paulo State, SE Brazil.

*indicates significant differences.