http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
두홍수,이호림,박철형,류점호 전북대학교 농업과학기술연구소 2001 農大論文集 Vol.32 No.1
Tis experiments were carried out to investigate the growth characteristics, flowering time, tuberous root formation and enlargement according to growing days in yacon(Polymnia sonchifolia Poepping & Endlicher) cultivation. Plant height was increased vigorously at 45 days after planting(DAP) and reached to maximum at 120 DAP and then decreased slightly. stem developed 4~10 branches from base part around 30 DAP except on main stem, that reached to maximum at 105 DAP. It was enlarge from early growth stage to 60 DAP but was no longer enlarge ever since. Leaf remained from upper 5~8 nodes to normal leaf and leaf in the bottom node became fallen leaves, leaf number decreased some from 105 DAP. Node number shows continuous increase from early growth stage, its augmentation was low around 105 DAP and no loger developed from 135 DAP. Stem diameter enlarged from 30 to 60 days after planting and was not enlargement ever since. Change of fresh weight above groun was similar to that of plant height and maximal point was same. Tuberous roots per palnt formed 3~27 that enlarged significantly during 120~150 DAP. Red crown bud developed between stem and under ground part that contained 30~ 100 buds(maximumly 127). When tuberous roots were classified less than 200g or heavier, number rate was 57:43 but fresh weight was 9:91. At the last ten days of the October, 5~7 flower stalks were successively formed from the shoot apex, 3~4cm dark-yellowish flowers bloomed byt seed was not beared. Key words : yacon, growth characteristics, flowering, tuberous root, formation, enlargement.