Breeding, development and production of mutant varieties
Mutation breeding Since 1993, under the IAEA Technical Co-operation (TC) project since 1997, the mutation breeding programme was initiated for rice. The breeding programme used introduced varieties (IR64, IR50404), local varieties (Nang Huong, Tam Xoan, Tai Nguyen and Tep Hanh) and mutants (VND31, VND22-36) as genetic material to be induced withmutations and combined with hybridization. After 5-6 years, the best mutants were released into production. Methodically, dry and germinated seeds were exposed to gamma rays of a 60Co source at the Nuclear Research Institute, Dalat city, Southern Vietnam. The doses of 200 and 300Gy were applied for seed treatments. Populations of 10,000 – 15,000 M1 plants were established and evaluated from M2 to M7 generations. The best lines were tested, released and approved as temporary and national varieties by the Ministry of Agriculture & Rural Development (MARD).
Breeding, development and production of mutant varieties Mutation breeding Since 1993, under the IAEA Technical Co-operation (TC) project since 1997, the mutation breeding programme was initiated for rice. The breeding programme used introduced varieties (IR64, IR50404), local varieties (Nang Huong, Tam Xoan, Tai Nguyen and Tep Hanh) and mutants (VND31, VND22-36) as genetic material to be induced withmutations and combined with hybridization. After 5-6 years, the best mutants were released into production. Methodically, dry and germinated seeds were exposed to gamma rays of a 60Co source at the Nuclear Research Institute, Dalat city, Southern Vietnam. The doses of 200 and 300Gy were applied for seed treatments. Populations of 10,000 – 15,000 M1 plants were established and evaluated from M2 to M7 generations. The best lines were tested, released and approved as temporary and national varieties by the Ministry of Agriculture & Rural Development (MARD).
การแปล กรุณารอสักครู่..