@article{oai:ir.kagoshima-u.ac.jp:00002547,
 author = {秋浜, 友也},
 journal = {南方海域調査研究報告=Occasional Papers},
 month = {2016-10-27},
 note = {秋浜友也（明治大学農学部）, Through the mission to 14 nations during the 10 years of 1974 to 1984, International Board
of Plant Genetic Resources (IBPGR) collected 2,468 varieties of fruit trees by the explorations.
For citrus family, a five-year collection project for genetic resources is being carried out in South-East Asia since 1983. This is because citrus family is especially valuable as vitamine resources. Up to now, explorations to Thailand, Malaysia, Brunei and Indonesia have been completed.
There are two types of citrus regarding the embryogenesis, monoembryonic and polyembryonic.
Embryos of the latter are initiated from somatic cells of the seed parents, which means they
are maternal clones. By this reason, these seeds represent very convenient subject of genetic resources collections.
For the permanent maintenance of genetic resources, cryopreservation of shoot apex and
in vitro gene banks through tissue culturing have been develops to avoid troublesome virus
infections.},
 pages = {32--41},
 title = {果樹類の分布と探索},
 volume = {9},
 year = {}
}