Chao Hom CMU 10-1 rice was obtained from the mutation induction of the Khao Dawk Mali 105 (KDML105) rice (the most eminent Thai rice, which also has a low crop yield) by using low-energy ion-beam biotechnology at Chiang Mai University. The rice mutant was bred to obtain high crop yield and aromatic 2AP content. The major characteristics of the fragrant rice are described below.
- Chao Hom CMU 10-1 rice is a photoperiod-sensitive-non-glutinous rice. It produces a crop yield of 1,056 kg/rai similar to Pathum Thani 1 rice, which produces a crop yield of 1,044 kg/rai. However, its harvesting period (120 days) is shorter than that of Pathum Thani 1 rice (134 days).
- The rice is moderately resistant to rice blast
- The rice grain shape is long and slender. Its amylose content is 16.60%. Its cooking and eating qualities are excellent and are accepted by consumers similar to that of KDML105 rice.
- It is a fragrant rice and possesses aromatic 2AP content of 8.44 mg/kg which is higher than that in KDML105 rice (6.51 mg/kg) RD6 rice (6.62 mg/kg).
Rice breeders : Dr.Boonrak Phanchaisri and Dr.Jiranat Techarang Chiang Mai University