通江地区7个高粱属品种的生产性能及营养价值评价OA北大核心CSTPCD

The purpose of this experiment is to screen the forage varieties of sorghum suitable for planting in Tongjiang area.Seven high-quality varieties were introduced in field experiment,and their grass yield,agronomic characters,and nutritional components were determined and evaluated.The results showed that all the seven varieties could grow normally in Tongjiang area,and there were differences in agronomic characters,grass yield,and nutrient components among them.Shucao No.1 had the highest plant height and the largest number of tillers.The stem diameter,leaf number,and leaf width of Lü juren were extremely higher than those of other varieties except Aalto 901(P＜0.01).Hainiu had the longest leaf length,the shortest internode length and the smallest stem-leaf ratio.Aalto 901 had the highest total fresh grass yield,followed by Shucao No.1 and Lü juren.The content of dry matter,soluble sugar and relative feeding value of Lü juren was the highest,while the content of crude fiber and acid detergent fiber was the lowest.The crude fiber content of Shucao No.1 was low,while the crude fat and phosphorus content were the highest.The content of crude protein and crude ash in Hainiu was the highest.Comprehensive evaluation showed that the average membership function value of Lü juren is the highest,followed by Shucao No.1.The research shows that Lü juren and Shucao No.l are more suitable for cultivation in Tongjiang area.