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试验选择8个代表性的甜高粱品种分别在半干旱地区、半湿润地区种植,研究两种生境对不同甜高梁品种苗期生长及成熟期农艺性状、生物产量、糖锤度的影响。结果表明:半干旱地区种植的甜高粱苗期生长速度高于半湿润地区,植株含水量低于半湿润地区;在成熟收获期,半干旱地区种植的甜高粱品种株高、茎粗均低于半湿润地区,生物产量均低于半湿润地区,茎秆含水量略有下降,茎秆糖锤度均高于半湿润地区,半干旱条件降低甜高粱的生物产量,增加茎秆汁液锤度。本试验为筛选适宜吉林省西部半干旱地区种植的甜高梁品种提供理论依据。
Eight representative sweet sorghum cultivars were planted in semi-arid and semi-humid areas to study the effects of two habitats on agronomical characters, bio-yield and sugar content of different sweet sorghum varieties at seedling stage and maturity. The results showed that sweet sorghum planted in semi-arid area had higher growth rate at seedling stage than semi-humid area and lower water content than semi-humid area. The plant height and stem diameter of sweet sorghum cultivated in semi-arid area were lower than those of semi-humid area Semi-humid areas, the biological yield were lower than the semi-humid areas, the stalk moisture content decreased slightly, stem straw brix were higher than the semi-humid areas, semi-arid conditions reduce the biological yield of sweet sorghum, increase the stalk juice brix. This experiment provided the theoretical basis for screening sweet sorghum varieties suitable for planting in semi-arid areas of western Jilin Province.