A Study On Main Agronomic Characters And Relevant Energy Characters In Different Types Of Sorghum Varieties(Lines) In West Jilin Province

Sorghum [Sorghum bicolor （L.） Moench], also known as milo, sorgo, belongs toGramineae sorghum annual C₄herb of short-day, having a strong growth ability, drought andsaline tolerance which is one of important cereal crop of China. And for ultimate highbiomass of fresh yield of60-70tons per hectare, it attracts the attention from numerousenergy plants researchers,and becomes a hot area in search and development of energy crops,therefore, developing plantation the high-yield and high-energy sorghum varieties has amomentous significance to implement of China’s non-food energy strategy.Jilin province is located in the central Northeast China, with vast west area, havingnatural conditions of poor quality that the climate is arid and annual precipitation ismaintained at around400～500mm, so it is based primarily on corn, sunflower, sorghum andsome other plants which have strong drought resistance. This research synthetically discussedand analysed the morphologic features of different types of sorghum varieties, as plant height,panicle length, stem diameter, dry matter accumulation, etc. As well total soluble sugar,energy constituents, and other physiological measure. Also analysed the correlation betweenpopulation characteristics, and summarized the potential for energy development andadaptability of each experimental sorghum varieties in west Jilin Province throughcomparation. Main results for this study were as follows:1. Among6experimental sorghum varieties, H1lines had strongest agronomiccharacters comprehensive advantages with the maximum value of plant height, base stemdiameter, stem diameter, internode number, panicle length; H22lines showed biggestcoefficient in stem diameter, and performed good antilodging; Tillers of Wancao2were themaximum, having greatest potential for biomass increases.2. The differences in the amount of dry matter accumulation were remarkable among6experimental varieties, which the highest-amount Chuntian2was the lowest Wancao2of2.8times. Dry material distribution proportion competition primarily existed between stem andpanicle. Accumulation and distribution dynamics of dry matter of leaf, leaf sheath had thesame trend,while that of stem and panicle marked a turning point around filling period,meanwhile, the organic matter produced through plant photosynthesis gave priority tovegetative growth of stem and leaves to reproductive growth of panicle.3. The crude protein content of experimental sorghum varieties was generally low andamong them, panicle of Wancao2and H22which could complete their life circle beforeharvest and acquire ripe grains, having potential for developing grain-related products, hadhigher crude protein content.4. For H1lines had a higher proportion of stem and leaves, higher fiber content, andmoderate ash content, it had both "first generation" and "second generation" biofuelsdeveloping potential.5. With the influence of biomass, there is no simple liner relationship between totalsoluble sugar content and sugar production. The sorghum varieties that had higher biomass and higher soluble sugar content simultaneously had higher capability of producing sugar.Liaotian6, Chuntian2, H2lines, having relatively higher sugar production, which had "firstgeneration" biofuels developing potential and could be used to distill crystallised sugar aswell make wine.