Japanese origin

Lacquer seeds excavated from Sannai Maruyama site and DNA analysis results of Shizuoka Prefectural University.

World Heritage

Old seedlings field of Seitaro Omori used for DNA analysis of Sannai Maruyama ruins

Skill

Urushi tree of the endemic Japanese species.Cut the groove and collect out the exuded urushi. Growth and sap out are slow. The urushi scraping technique is unique in Japan.

Chinese species

It is a native lacquer tree in China. The shape of leaves and bark is different. Sap also does not separate and it is different from that of Japan.

Afforestation

Subspecies

Current classification of urushi tree.
It is divided into three lineage. Wild species .Cultivated species. Chinese origin.
Improvement of breed has been carried out to improve productivity by gene manipulation.

Form

Urushi pollen is a type that fly only tens of meters. You can not leave descendants without trees of both sexes in the same area. Left: Female tree right: male tree

Forest

Survey of planting land
Iwate.Niigata.Ibaragi.

Eco

When urushi sap is to be produced 1 ton per year, about 5,000 urushi trees are consumed. Considering that we are suffering from animal feeding damage or sickening at the time of seedlings, it is necessary to plant seedlings as low as 10,000 at the minimum.
In order to make a sustainable afforestation system germination method by sulfuric acid dewaxing method from seed is most suitable.
There is specialized facilities in the northern part of Iwate prefecture for its wasteliquid treatment.

Member

Jomon-urushi-preservation-group.
Head of afforestation department.
Head of seedlings department Seitarou Oomori. Photo: right.
Spokeswoman Yumi Watanabe. Photo: bottom left.
Head Hiroyuki Watanabe. Photo: Top left.