Germination of two provenances of Santalum austrocaledonicum var. austrocaledonicum
1998
Ehrhart, Yves
During the germination phase of a #Santalum austrocaledonicum# progeny trial, important and unexpected differences occurred in the germination rates between two provenances. The "Ile des Pins" provenance conformed with expectations, previous experimentations and routine germination (55% after two years' storage). By contrast, the unstudied "Mare" provenance failed completely (one lot had a 19% germination rate; the others, nothing after 15 months' storage in identical conditions). Germination rate seems to correlate with mean seed-size of a provenance. This may be significant since the seeds of other #Santalum# species and varieties of the South Pacific look more like the Mare, even though the only large experiment was conducted on the Ile des Pins provenance. Present projects of genetic diversity conservation or species/provenance trials in South Pacific countries should be aware of that result, and test their seed lots regularly in order to minimise loss of costly material. (Résumé d'auteur)
اظهر المزيد [+] اقل [-]