쌀보리 약배양의 식물체 재분화 및 초기생육에 미치는 환경요인
Regeneration Efficiency and Growth Control Under Culture Environment of Naked Barley Anther Culture
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Abstract
In general, since partial pollen is derived to sporophyte, anther culture efficiency is low, and practical application that is introduced in actuality breeding technology is not many. This study was carried out to improve regeneration of green plants through some culture environments contol in anther culture of naked brley. Among the factors related with plant regeneration, medium was effective in component containing L-glutamine 256 mg/L, L-proline 250 mg/L, IAA 1 mg/L and BAP 2 mg/L controlled in addition sucrose 30 g/L or maltose and sucrose mixed each 30 g/L to increase both plant regeneration and green plant regeneration rate. Also, adequate content of CuSO4 was the best at 1.25 mg/L (fifty-fold), it was tendency to decrease albino production rate. Starvation was effective at 30℃, 7 days in case of Saessalbori for plant regeneration and Dooweonchapssalbori at 30℃, 10 days with increasing green plant regeneration against albino. After plant regeneration, under acclimation by hydroponics, roots and shoots were well developed at 20℃, light control as 2,000～5,000 Lux and photoperiodic reaction by 14/10 as dark/light in the early growth stage. In acclimation method, plants acclimated in the modified Yoshida solution filled-vermiculite in GP pot is superior (100%), in which was controlled by temperature 20℃, pH 6.0 and relative humid 90% over, especially, after transplanting in pot growth of root, sheath and leaf are more active in 20℃ and 5,000 Lux control. For Vernalization, plants derived from anther culture of F1 naked barley was different from their parents with normal heading plant even about 50% in the F1 hybrids whose vernalization was strong, whereas the rest of plants derived from anther culture formed rosette, showing that normal growth were impossible.
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