Fig. 4From: Optimal seed water content and storage temperature for preservation of Populus nigra L. germplasmEffect of storage at different temperatures on the germination of P. nigra seeds after 12 months. The WC of fresh and dried seeds was 0.15 g g−1 and 0.07 g g−1, respectively. Means with the same letters are not significantly different (P < 0.05). Seeds were collected in 2011Back to article page