摘要
以甜杂2号为材料研究了播期对甜高粱生育期以及不同生育时期绿叶数、生物产量、含糖量、粗蛋白和粗纤维的影响。结果表明,生育期随播期推迟而缩短;在蜡熟期和完熟期,第二和第四播期甜高粱的生物产量显著高于另两个播期;整个生育期内,第二播期的绿叶数始终最高;甜高粱的含糖量随播期的推迟呈逐渐下降的趋势;不同播期的粗纤维含量呈现出先升高后降低或升-降-升的变化趋势;播期对粗蛋白含量的影响不显著。在北方甜高粱春播区,尤其是天津地区,最适播期在5月11日左右,并且通过分期播种,可延长其加工期近3个月。
With sweet sorghum Tianza No.2 as tested material, the effects of sowing date on the growth period and green leaf number, biomass, sugar content, crude protein and crude fiber of sweet sorghum at different growth stages were studied. The results showed that the growth period became short with the delay of sowing date. At dough and full ripe stage, the biomass of the second and forth sowing dates were significantly higher than that of the other two sowing dates. The green leaf number of the second sowing date was always the highest during the whole growth period. The sugar content gradually decreased with the delay of sowing date. The crude fiber content of different sowing dates presented up-down or up-down-up trend. The ef- fect of sowing date on crude protein content was not significant. At spring sowing area of sweet sorghum in North China, es- pecially in Tianjin area, the optimum sowing date was May llth or so. And the processing period of sweet sorghum could be extended to nearly three months by interval sowing.
出处
《湖北农业科学》
北大核心
2013年第14期3260-3263,共4页
Hubei Agricultural Sciences
基金
国家农业科技成果转化资金项目(2007GB2A100021)
天津市科技计划项目(07ZHNZNC02500)
天津市农业科技成果转化与推广项目(0703040)
关键词
甜高粱
播期
生育时期
生物产量
品质
sweet sorghum
sowing date
growth stage
biomass
quality
