能源高粱在盐碱地上的品种筛选

以本实验室新培育的4个甜高粱杂交种(S1~S4)和6个生物质高粱杂交种(B1~B6)作为参试材料,在吉林省长岭县和山东省滨州市的盐碱地进行2年大田试验,旨在筛选出适合当地及周边盐碱地区生产试验和推广种植的能源高粱杂交种,为我国发展生物质能源提供原料基础。研究结果表明:1)在2个试验点的2年试验中,各参试杂交种株高与茎粗分别为347.4~496.3cm和14.8~20.3mm,生物质高粱杂交种要优于甜高粱杂交种;2)2年中各参试杂交种地上部总干重为9.1~28.5t/hm2,其中生物质高粱杂交种B2、B4和甜高粱杂交种S2分别在各试验点的2年试验中表现突出;3)结合2年试验数据,得出适合长岭试验点推广种植的杂交种为生物质高粱杂交种B3、B4以及甜高粱杂交种S2,适宜滨州试验点推广栽培的为生物质高粱杂交种B2、B3以及甜高粱杂交种S4。

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 496.3 cm and 14.8 to 20.3 mm, 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 9.1 to 28.5 t/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.