Kövendi-Jakó A, Csecserits A, Halassy M et al Relationship of germination and establishment for twelve plant species in restored dry grassland (2017)

Kövendi-Jakó A, Csecserits A, Halassy M, Halász K, Szitár K, Török K
2017
Relationship of germination and establishment for twelve plant species in restored dry grassland
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 15:(4) pp. 227-239.
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There is a lack of knowledge on germination capabilities of native species and their relation to field establishment that could help optimize ecological restoration efforts. We studied laboratory germination and second year field establishment of 12 native vascular dry grassland plant species in the frame of a restoration project in NE Hungary. Our questions are:1) For which species is cold-stratification necessary to break dormancy of seeds? 2) Is there a positive correlation between germination and second year establishment? Laboratory germination was studied with and without cold-stratification and the impact of cold-stratification was tested by linear model. Relationships between germination and field establishment were tested by generalized linear models. Cold-stratification decreased significantly the germination of four grass species, and was important to break dormancy for one dicot. Field establishment is positively connected with germination under both germination treatment. We conclude that, laboratory germination has a high predictive value on the establishment success of seeded species.