RD14 Rice Variety

Abstract

Most of rice cultivation in 9 provinces of upper northern region is glutinous rice particularly, in wet season it is about
70 % of the whole rice planting area. Farmer's favorite varieties are RD6 and RD10, which are low-yielding and also susceptible to blast, bacterial leaf blight, gall midge, and whitebacked planthopper. Therefore, high-yield hybrid sticky rice project was conducted in 1991 at Phrae Rice Research Center. PRE9203913-1-2-2 was obtained from double cross of IR54883-8-2-3/RD6//IR54883-8-2-3/KDML105. It has been officially released and registered as certified variety, called "RD14" by Rice Department's Variety Approval and Released Committee. Varietal potential was evaluated under intra-station yield trials, inter-station yield trials and farmer's field trials, including production stability, resistant to important diseases and insect pests, nitrogen responsibility, physical and chemical properties, cooking and eating quality as well as farmer's acceptance. Total trial period was 16 years (1991-2007). It can be concluded that RD14 is photoperiod-insensitive glutinous rice with 105-120 cm height, harvesting date 134-138 days, average yield 666 and 711 kg/rai in wet and dry season respectively. Its yield is higher than RD10 and Sanpatong 1 13% and 6% respectively and higher than RD10 about 14% in dry season. It is long grain glutinous rice with good milling quality, rather tolerant to blast and bacterial leaf blight. This variety is suitable for cultivation in irrigated area of upper northern region. It can be grown throughout the year. But great care should be taken because it is susceptible to gall midge, brown planthopper and whitebacked planthopper.