벼 유묘내염성 검정체계 확립에 의한 내염성 계통 선발
Selection of Salinity Tolerant Lines by Establishment of Salt Screening Techniques at Rice Seedling Stage
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Abstract
This study was conducted in order to breed Japonica salt tolerant rice and select salinity tolerant lines by establishing reliable and practical method of screening voluminous materials. Salinized nutrient solution by adding NaCl was effective compared with the salinized nutrient solution by adding 0.3%, 0.6% and 0.7% of diluted sea water. There was no different visual score of salinity injury between salinization using tap water and distilled water. Seedling salinity tolerant lines between region and order by year were showed very stable and reproducible results, 3～4.2 of visual score at Gyehwado-substation and International Rice Research Institute (IRRI, Philippines) in 2002, 2003 and 2004. Heading date of 6 selected seedling salt tolerant lines showed a range of 16. Aug.～21. Aug. and delayed 2～6 days than that of Donjinbyeo. Percentage of ripened grain and yield of milled rice in 6 lines was lower, 52.2～14.7% and 50～5%, respectively than those of Donjinbyeo.
참고문헌 (15)
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