title: [New variety breeding of Dioscorea alata, cultivar "Wenshanyao No.1].
abstract: To breed a new yam cultivar of Dioscorea alata, the different and excellent germplasm resources were investigated within artificially cultivated population and some superior individuals, with a higher yield and medicinal properties, were selected. Considering results of the yield and medicinal properties during 2006-2013 cropping season, strains and lines were established and selected. As a result, the yield of the new developed cultivar (Wenshanyao No. 1, WSY01-1) reached 2217. 0 kg per 667 m2 (fresh weight) and 348.3 kg per 667 m2 (dry weight), and increased 23.8% and 23.9% comparing with control cultivars (landraces). Comparing with control cultivars, the level of polysaccharide, allantoin, and dioscin increased 36.9%, 48.3%, 20.9%, and reached 12.2%, 1.30%, 579.7 µg · g(-1), respectively. This result showed that the systematic selection method can significantly improve yield and medicinal properties of D. alata, and the developed " Wenshanyao No. 1" exhibits wide spreading prospects.
authors: Zhi-gang
authors: ZG
authors: Wu
authors: Wu
authors: W
authors: Jiang
authors: Wei Yu-huang
authors: Yu-huang
authors: YH
authors: Tao
mesh_terms: D000481:Allantoin / Q000032:analysis; D001947:Breeding; D027742:Dioscorea / Q000737:chemistry* / Q000235:genetics / Q000254:growth & development*; D004144:Diosgenin / Q000031:analogs & derivatives / Q000032:analysis; D011134:Polysaccharides / Q000032:analysis
chemical_list: D011134:Polysaccharides; D000481:Allantoin; C019357:dioscin; D004144:Diosgenin