出版社:Thai Society of Higher Eduction Institutes on Environment
摘要:Storage of native forest tree seeds is essential for the development of seed-based forest restorationmethods, such as direct or aerial seeding and for increasing representation of native trees innurseries, for conventional tree planting. The study, presented here, investigated seed germination,dormancy and storage behaviour of 16 native tree species, used to restore upland evergreen forest innorthern Thailand. Eleven of them, had orthodox seeds (storable at minus 20˚C and 5% moisturecontent): a proportion consistent with other studies of seasonally dry tropical forest: Acrocarpusfraxinifolius, Adenanthera microsperma, Alangium kurzii, Bauhinia variegata, Choerospondiasaxillaris, Gmelina arborea, Hovenia dulcis, Manglietia garrettii, Melia azedarach, Phyllanthusemblica and Prunus cerasoides. Four species had recalcitrant seeds: Artocarpus lacucha, Dimocarpuslongan, Horsfieldia amygdalina and Syzygium albiflorum. All except D. longan set seed in the earlyrainy season and could therefore be used for direct or aerial seeding without storage. Inclusion ofD. longan and Diospyros glandulosa (the latter classed as intermediate, with seeds that could bepartially dried but not frozen) in forest restoration plantings will only be possible by nursery-basedsapling production and conventional tree planting.