Released varieties are micropropagated in tissue culture laboratories and/or propagated in nurseries of the MDDCs. PHILSURIN has a tissue culture laboratory with a capacity of 40,000 plantlets per week. Other tissue culture laboratories funded by PHILSURIN have production capacities of 5,000 to 10,000 plantlets per week. Micropropagated plantlets are allocated to various MDDCs where the plantlets are acclimatized and hardened for nursery planting and propagation. Setts produced from these nurseries are distributed to growers.