Xuzishu 8 is a new cultivated sweetpotato with high anthocyanidin content.The growth period affects its tuber traits and quality.In this study,the changes in sweetpotato shape,number of tubers per plant,rate of big an...Xuzishu 8 is a new cultivated sweetpotato with high anthocyanidin content.The growth period affects its tuber traits and quality.In this study,the changes in sweetpotato shape,number of tubers per plant,rate of big and medium tubers,yield,anthocyanin content and starch content of Xuzishu 8 were investigated under 12 growth periods from 78 to 188 d.The results showed that various traits of Xuzishu 8 were significantly different between different growth periods.The rate of large and medium tubers,the fresh sweetpotato yield,the starch content and the anthocyanin yield increased gradually with the extension of the growth period.The length/width ratio of sweetpotato tubers,the rate of small tubers and the contents of reducing sugar and soluble sugar decreased with the prolongation of the growth period.The correlation analysis showed that the fresh sweetpotato yield was in significant or extremely significant positive correlation with the number of tubers per plant,rate of big and medium tubers,dry matter content,dry yield and starch content.The 148-day growth period treatment exhibited the highest number of tubers per plant,the highest fresh sweetpotato yield and anthocyanin yield reaching 3 927 and 4.25 kg/667 m^2,respectively,as well as the rate of large and medium tubers up to 90%.Therefore,the tubers had good marketability and eating quality.展开更多
Xuzishu 2 is a new high-quality table use purple-fleshed sweetpotato cultivar bred from hybrid progenies of AIS35-2 x Xushu 22-5 by Jiangsu Xuzhou Sweetpotato Research Center. In the sweetpotato variety regional trial...Xuzishu 2 is a new high-quality table use purple-fleshed sweetpotato cultivar bred from hybrid progenies of AIS35-2 x Xushu 22-5 by Jiangsu Xuzhou Sweetpotato Research Center. In the sweetpotato variety regional trial of Jiangsu Province during 2007 - 2008, average fresh storage root yield was 30 185.3 kg/hm2 ; average dry matter content was 29.26% ; average dry storage root yield was 8 868.7 kg/hm2. In the sweetpotato variety production test of Jiangsu Province, average fresh storage root yield was 30 683.9 kg/hm2 ; average dry storage root yield was 9 399.0 kg/hm2. Multi-location sampling analysis in the regional trial indicated that the anthocyanin content in fresh storage roots was 104.6 μg. Xuzishu 2 was approved by Crop Variety Approval Committee of Jiangsu Province in March 2010, which exhibited high fresh storage root yield, sweet taste, high anthocyanin contem, good commodity, root rot resistance, and was tolerant to moisture and easy to store. Therefore, Xuzishu 2 is a high-quality purple-fleshed sweetpotato variety suitable for consumption and food processing, which should be cultivated in medium- and high-fertility fields with management procedures of suitable high density, early planting and early harvest.展开更多
基金Supported by Jiangsu Agricultural Science and Technology Independent Innovation Fund [CX(17)2023]Earmarked Fund for China Agriculture Research System(CARS-10)"333 Project"of Jiangsu Province(BRA2016265)
文摘Xuzishu 8 is a new cultivated sweetpotato with high anthocyanidin content.The growth period affects its tuber traits and quality.In this study,the changes in sweetpotato shape,number of tubers per plant,rate of big and medium tubers,yield,anthocyanin content and starch content of Xuzishu 8 were investigated under 12 growth periods from 78 to 188 d.The results showed that various traits of Xuzishu 8 were significantly different between different growth periods.The rate of large and medium tubers,the fresh sweetpotato yield,the starch content and the anthocyanin yield increased gradually with the extension of the growth period.The length/width ratio of sweetpotato tubers,the rate of small tubers and the contents of reducing sugar and soluble sugar decreased with the prolongation of the growth period.The correlation analysis showed that the fresh sweetpotato yield was in significant or extremely significant positive correlation with the number of tubers per plant,rate of big and medium tubers,dry matter content,dry yield and starch content.The 148-day growth period treatment exhibited the highest number of tubers per plant,the highest fresh sweetpotato yield and anthocyanin yield reaching 3 927 and 4.25 kg/667 m^2,respectively,as well as the rate of large and medium tubers up to 90%.Therefore,the tubers had good marketability and eating quality.
基金Supported by Earmarked Fund for China Agricultural Research System(CARS-11)HarvestPlus Fund(HP8323)
文摘Xuzishu 2 is a new high-quality table use purple-fleshed sweetpotato cultivar bred from hybrid progenies of AIS35-2 x Xushu 22-5 by Jiangsu Xuzhou Sweetpotato Research Center. In the sweetpotato variety regional trial of Jiangsu Province during 2007 - 2008, average fresh storage root yield was 30 185.3 kg/hm2 ; average dry matter content was 29.26% ; average dry storage root yield was 8 868.7 kg/hm2. In the sweetpotato variety production test of Jiangsu Province, average fresh storage root yield was 30 683.9 kg/hm2 ; average dry storage root yield was 9 399.0 kg/hm2. Multi-location sampling analysis in the regional trial indicated that the anthocyanin content in fresh storage roots was 104.6 μg. Xuzishu 2 was approved by Crop Variety Approval Committee of Jiangsu Province in March 2010, which exhibited high fresh storage root yield, sweet taste, high anthocyanin contem, good commodity, root rot resistance, and was tolerant to moisture and easy to store. Therefore, Xuzishu 2 is a high-quality purple-fleshed sweetpotato variety suitable for consumption and food processing, which should be cultivated in medium- and high-fertility fields with management procedures of suitable high density, early planting and early harvest.
