These fruits normally would have 2 seeds. When the fruit splits,
the seeds will be scattered by the wind, hence the difficulty in their collecting.
Seeds of Aquilaria
4000~5000 seeds / Kg
(0.2 ~ 0.34g / seed)
Improving seed viability
Seeds can be stored in a refrigerator for 2 months. (Normally seeds start to lose their germination capacity within one week.)
Germination rate 80~90% within one week. This indicates that the seed storage of Aquilaria is very difficult and should be sourced from very reliable supplier.
Below table shows some of the factors against germination rate
Germination rate after 2 months
10 ~ 12°C
10 ~ 20°C
55 ~ 60%
Hence, some experienced suppliers keep the seed for longer storage in controlled environment, but this is not considered as “fresh seeds”. The germination is very much reduced as shown above. Being a wise buyer, you should know when is the harvesting season ending, so that you will judge the supply is “fresh” or “frozen”.