DB44/T 256-2005
Replaced
DB44/T 256-2005 DB44/T 256-2005 Seedling cultivation technical regulations for spruce clones
This standard specifies the technical requirements for the establishment, management, and operation of seed collection plots for clonal seedling production of Cunninghamia lanceolata (Lamb.) Hook., including seed collection, seedling cultivation, seedling transplantation, seedling delivery, and record keeping. This standard applies to clonal seedling production of Cunninghamia lanceolata in state-owned, collective, individual, and joint-stock enterprises, as well as cooperative enterprises operating on a large scale within Guangdong Province.