New variety breeding of Dioscorea alata, cultivar "Wenshanyao No.1.
- Author:
Zhi-gang WU
;
Wu JIANG
;
Wei YU-HUANG
;
Yu-huang TAO
- Publication Type:Journal Article
- MeSH:
Allantoin;
analysis;
Breeding;
Dioscorea;
chemistry;
genetics;
growth & development;
Diosgenin;
analogs & derivatives;
analysis;
Polysaccharides;
analysis
- From:
China Journal of Chinese Materia Medica
2015;40(9):1705-1709
- CountryChina
- Language:Chinese
-
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.
