논문 상세보기
pp.89-94
직파품종 개발을 위한 특성검정으로 저온발아성을 조사하여 직파적응성에 알맞은 품종개발을 위한 기초자료로 활용하고자1994년부터 2008년까지 육성된 89개 품종을 이용하여 저온발아성을 검정한 결과 최근에 육성한 품종일수록 저온발아율이80% 이상으로 높았으며, 조생종이나 중생종보다는 중만생종의 저온발아율이 높은 경향이었으나 통계적인 유의차는 인정되지 않았다. 또한 최고품질이나 고품질 품종이 초다수성이나안전성 품종보다 저온발아율이 높았다. 품종이 육성된 기관별로 볼때는 직파품종 개발을 담당하고 있는 익산의 벼맥류부육성품종의 저온발아율이 다른 기관에서 육성된 품종보다 높게 조사되었다.
This study was carried out for breeding of direct seeding cultuvars. In direct seeding cultivation, low temperature germination rate is very important character for stable emerge of early seedlings. In this study low temperature germination rate(LTGR) were tested using 89 rice cultivars breeded from 1994 to 2008 year. The results are summarized as follows. Rice cultivars were breeded after 2004 year LTGR was higher than before 2003 year breeded cultivars. In med-late maturity cultivars LTGR was slightly higher than early or medium maturity cultivars, but there was no significance. Premium quality or high quality cultivars showed more high LTGR than superyield or stability cultivars. The LTGR of rice cultivars breeded in Iksan(NICS department of rice and winter cereal crops) were higher than other institutes breeded cultivars.
