The effects of the transferred green rice leafhopper (GRH) resistant gene on yield and grain quality were analyzed by using 7 near-isogenic lines (NILs) with introgressed GRH resistance gene in rice cultivar "Ilpumbyeo". The genotype analysis using SSR markers indicated that all NILs were recovered more than 95% as compared with recurrent parent "Ilpumbyeo". All NILs showed no significant differences compared to recurrent parent for grain yield. No significant differences were observed between NILs and their recurrent parent for physicochemical traits (protein content, amylose content and alkali spreading value) and eating quality. But there were significant differences for appearance of brown and milled rice and pasting properties between some NILs and their recurrent parent. It means that these grain appearance and pasting traits of NILs were very similar or more improved compared to recurrent parent "Ilpumbyeo". Thus, it could be possible to develop GRH resistant variety with high ,quality in segregating populations.

자포니카형 품종에서 벼멸구 저항성 육종의 효율을 향상시키고자 '삼강벼'/'낙동벼' BC5F5 세대의 여교잡집단(SNBIL)에서 개발된 DNA marker RM28493에 대하여 활용성을 검토한 결과는 아래와 같다. 1. 벼멸구 저항성 유전자 Bph1의 근동질 유전자 계통인 SNBIL61과 감수성인 주남벼가 교배된 약배양 집단에서 RM28493은 벼멸구 저항성 생물검정 성적과 일치하였다. 2. RM28493은 다양한 유전자원에서 벼멸구 저항성 유전자인 B

‘Gwangan’ is a new six-rowed covered barley cultivar developed by the National Institute of Crop Science (NICS), R.D.A in 2004. This cultivar is developed from a cross between “Mirak” and ‘Milyang59’ in 1995. An F6 selection was made at Milyang in 2001 an

“Jokyoung”, a new bread making wheat cultivar, was developed from the cross between “Seri 82”, a hard white wheat from CIMMYT, Mexico and “Keumkang”, a hard white wheat with high milling rate and early maturing from Korea by National Institute of Crop Sci

A new malting barley variety, Hopum, was developed from the cross between Sacheon 6 and Misato Golden at thenated as Milyang114. It showed good agronomic performance in the regional adaptation yield trials (RYT) from 2001 to 2003 andwas released with the