Premium
Ecological genetics of salt resistance in the clonal perennial, Agrostis stolonifera L.
Author(s) -
KIK C.
Publication year - 1989
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1989.tb00356.x
Subject(s) - agrostis stolonifera , salt marsh , biology , perennial plant , resistance (ecology) , population , botany , natural population growth , agrostis , salt (chemistry) , ecology , poaceae , chemistry , demography , sociology
S ummary Large population differentiation in salt resistance, as determined by a rooting technique, was detected among four ecologically contrasting populations at. Agrostis stolanifera L., with known genotypic compositions. It was found that an inland meadow population had a significantly lower salt resistance than the more maritime populations; and that only the inland meadow population had a significant genetical component for salt resistance. The possible adaptive value of salt resistance, as measured by the rooting technique, was evaluated in a transplant experiment in a natural salt marsh. It was found that relative root growth is a reasonable indicator of the complex of factors determining salt resistance. A detailed analysis of the relationship between salt resistance and survival within each of the four populations of A. stolonifera suggested that genotype x environment interaction and trade‐offs between characters governing salt resistance might play a significant role.