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백남현 ( Nam Hyun Back ),고종철 ( Jong Cheol Ko ),남정권 ( Jeong Kwon Nam ),최민규 ( Min Kyu Choi ),김보경 ( Bo Kyeong Kim ),양창휴 ( Chang Hyu Yang ),김택겸 ( Teak Kyum Kim ),김선 ( Sun Kim ),모영준 ( Young Jun Mo ),이경보 ( Kyo 한국국제농업개발학회 2011 韓國國際農業開發學會誌 Vol.23 No.4
This study was conducted to estimate the adaptability of some rice varieties for wet flooded direct seeding. Characters such as seedling stand, lodging index and milled rice yield are very important factors in order to get stable yield in direct seeding. These characters were compared among the 17 varieties which belong to early, medium, and mid-late maturity groups. Donganbyeo, Hoanbyeo, and Dongjinbyeo showed over 80 percent of seedling stand. Lodging did not occur in Daesanbyeo, Donganbyeo, Geumnambyeo, Ansanbyeo, Juanbyeo, Anjungbyeo, Hwanambyeo, and Obongbyeo. On the other hand, Geumobyeo, Hwayeongbyeo, Dongjinbyeo, and Nagdongbyeo showed severe lodging. The numbers of panicles and spikelets per in early maturing varieties were lower than those in medium and mid-late maturing varieties. There was no difference among medium and mid-late maturing varieties in the ratio of ripened grain. Milled rice yield was not different in medium or mid-late maturing varieties, whille in early maturing varieties it was different from 0.79 to 0.85MT/ha which was lower than in medium or mid-late maturing varieties. Consequently, Donganbyeo, Daesanbyeo and Hoanbyeo was desirable for wet flooded direct seeding in consideration of seedling stand, lodging and yield.