TABLE 1.

The number of seeds collected, seed germination percentage and the number of seedlings analyzed per open pollinated Populus nigra female.

Collection year	Location	P. nigra tree ID	# seeds	Seed germination (%)	# seedlings analyzed
2018	Groeskens	2.16	NA	NA	28
2018	Groeskens	5.20	NA	NA	1
2019	Negenoord	1	160	2.50	4
2019	Negenoord	2	300	3.00	9
2019	Negenoord	3	300	5.67	17
2019	Groeskens	5.25	300	3.00	8
2019	Groeskens	5.22	76	6.58	5
Total					72