Screening of sweet sorghum and biomass sorghum on saline-alkali land

In this study,four sweet sorghum hybrids(S1-S4)and six biomass sorghum hybrids(B1-B6)bred by our laboratory were used as the testing materials for two-year field experiments on saline-alkali land in Changling Jilin and Binzhou Shandong.The aim was to screen energy sorghum hybrids which were the most suitable to grow and promote in the study sites.The results showed that:1)In the two study sites,plant height and stem diameter of all hybrids ranged from 347.4 to 496.3cm and 14.8 to 20.3mm,respectively.While biomass sorghum hybrids had better performance than sweet sorghum hybrids;2)The aboveground dry weight(ADW)of all hybrids in two sites was changed from 9.1to28.5t/hm2,which biomass sorghum hybrids B2,B4 and sweet sorghum hybrids S2 performed best in their corresponding sites and years;3)Through the analysis of the data,it was found that biomass sorghum hybrids B3,B4 and sweet sorghum hybrids S2 were suitable to cultivate and promote in Changling site.While for Binzhou site the biomass sorghum hybrids B2,B3 and sweet sorghum hybrids S4 performed well.