감초 유전자원의 생육 및 수량 특성
Growth and Yield Characteristics of Glycyrrhiza spp. Resources
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Background: When the licorice cultivated in Korea, the quality index components are lower than the standard value, and physiological disorders occur frequently. Therefore, we evaluated the growth and yield characteristics of resources to develop licorice varieties suitable for the domestic environment. Methods and Results: Glycyrrhiza resources were collected from five nations. Leaf margin has been identified as a species-specific characteristic that distinguishes G. uralensis and G. glabra. Glycyrrhiza resources were observed in flowers and seeds for 2 years. Leaf abscission began to fall from July and lasted until November according to the characteristics of the resources. As the number of cultivation years increased, root length, rhizome length, and rhizome number were not significantly related, however, root diameter, root weight and rhizome weight were significantly related. The skin root color became dark after a year. Yield (dry weight of underground part) increased mostly from the first to second year, whereas the yield changed depending on resource characteristics in three years. The yield was positively correlated with dry rhizome weight, plant height, stem diameter, and root diameter. Cluster analysis indicated that, they were classified into three clusters. Among them, the resources in group Ⅲ were confirmed to be of high quantity and quality. Conclusions: GLY13-05, GLY14-02, and GLY14-06 of Glycyrrhiza resources were evaluated as having excellent growth and yield characteristics. Moreover, they can be cultivated in domestic environments
Abstract
Background: When the licorice cultivated in Korea, the quality index components are lower than the standard value, and physiological disorders occur frequently. Therefore, we evaluated the growth and yield characteristics of resources to develop licorice varieties suitable for the domestic environment. Methods and Results: Glycyrrhiza resources were collected from five nations. Leaf margin has been identified as a species-specific characteristic that distinguishes G. uralensis and G. glabra. Glycyrrhiza resources were observed in flowers and seeds for 2 years. Leaf abscission began to fall from July and lasted until November according to the characteristics of the resources. As the number of cultivation years increased, root length, rhizome length, and rhizome number were not significantly related, however, root diameter, root weight and rhizome weight were significantly related. The skin root color became dark after a year. Yield (dry weight of underground part) increased mostly from the first to second year, whereas the yield changed depending on resource characteristics in three years. The yield was positively correlated with dry rhizome weight, plant height, stem diameter, and root diameter. Cluster analysis indicated that, they were classified into three clusters. Among them, the resources in group Ⅲ were confirmed to be of high quantity and quality. Conclusions: GLY13-05, GLY14-02, and GLY14-06 of Glycyrrhiza resources were evaluated as having excellent growth and yield characteristics. Moreover, they can be cultivated in domestic environments
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