Genetic variation in early fitness traits across European populations of silver birch (<i>Betula pendula</i>).

There were correlations between observed population seed germination rates in the chamber and observed population seedling emergence rates, correlations that were significant at the German garden ( r = 0.91, P < 0.001) and marginally significant in the Spanish garden ( r = 0.63, P = 0.050).

also in 26,082 other papers

Highly significant variation was found in field emergence rates among populations, and between seed-crop years within populations, but not among families within populations.

also in 132,142 other papers