벼멸구(Nilaparvata lugens Stal.)에 抵抗性인 찰벼계통 wx 318, wx 319

Glutinous Rice wx318 and wx319 Which are Resistant to Brown Planthopper(Nilaparvata lugens Stal.)

This paper reports about the procedures which they were bred and the agronomical characteristics of wx 318 and wx 319 lines which are resistant to brown planthopper(Nilaparvate. lugens Stal.). 1. The glutinous rice wx318 was bred from the crosses wx126²///Honam 36//IR24/Tongil and the glutinous rice, also, wx319 was bred from the crosses wx126//Honam36/Tongil. Where Honam 36 is the cross of KCL-4/IR1317-81-3², and KCL-4 is the cross of IR667-98-2-1-7/Mudgo. So, tine brown planthopper resistance of the lines wx318 and wx319 was originated from the Mudgo. 2. The wx318 and wx319 lines show also the resistance to the smaller brown planthopper(Laodelphax striatellus Fallen). The penetrance of the resistance were incomplete. 3. The resistance to the blast at both in field nursery and IA-65 race inoculated isolated nursery were complete. 4. Heading date of wx318 and wx319 are slightly later than “Glutinous Tongil” and earlier than “Tongil”. The performance and other traits of them were alike to the “Glutinous Tongil”.