참깨 종자의 발아율 향상 및 초기생육 촉진을 위한 priming 처리의 적정 조건을 구명하기 위하여 priming 약제 및 농도,priming 기간과 온도 및 priming후 저온 및 고온에서의 발아율에 대한 실험 결과에서 참깨 종자의 Priming에 가장 효과적인 약제는 PEG 6000, 농도는 −0.75MPa이었으며, priming처리 기간은 15에서 4일 처리하는 것이 가장 효과 적이었다.참깨 종자의 priming처리가 최종 발아율 향상에는 크게 기여하지 못했지만 초기 발아율 향상 및 T50 단축에 효과 적이었다. 참깨 종자의 Priming처리는 20oC 이상 보다는 15oC 저온에서 T50 단축에 효과적이었고, 발아율도 향상되어 재배적온보다는 저온하에서 Priming 효과가 극대화 될 것으로 판단된다. Priming 처리 후 건조 온도 조건에 따른 발아율에는 차이가 없어 25oC에서 3시간 정도 건조 시키는 것이 가장 경제적이었다.

A field experiment was conducted to evaluate the varietal variation of Se concentration and to determine the effects of selenium foliar applications on the productivity and agronomic characteristics of the whole-crop barleys. Se fertilizer was foliar applied at five levels(0, 50, 100, 200, 400 ppm) and two forms (sodium selenite and sodium selenate solution) at stem elongation stage, the middle of April. Cultivar effects on whole-plant Se contents were small and not significant. Regardless treatments, there were no remarkable effects on dry matter yield and forage quality of whole crop barleys. Se contents of plant was higher in selenate application by 3~10 times than selenite. In selenate treatments, as Se levels were raised from 50 ppm to 400ppm the Se contents were increased from 331ppb to 3433ppb and Se contents were positively correlated with the rate of Se application levels. Selenium(Se) is an essential nutritional trace element, which is needed for growth and reproduction in all living animals. But the line between the requirement and harmfulness of Se is narrow since selenium is a highly toxic element. The level of Se in feeds of plant varies depending on plant species, growing season and soil which the plants grow on. Because of low concentration of Se in domestic soils, the selenium availability to plants is limited and it is necessary to supplement feed with selenium. Generally organic Se is less toxic and more efficiently utilized than inorganic Se. Under the condition that antibiotics use in feed are prohibited, selenium enriched whole-crop barley can be one way to improve animal health.