论文部分内容阅读
为确定甜高粱适宜播期及含糖量关键气象影响因子,以新疆玛纳斯地区甜高粱主栽品种为试验材料,对不同播期下甜高粱含糖量的变化及其与气象因子的关系进行了比较分析。结果表明,随生育期延迟,甜高粱茎秆总糖含量、蔗糖含量逐渐升高,成熟期最高;还原糖含量开花期达到最大值,灌浆期后逐渐下降,至成熟期最低。不同播期之间甜高粱茎秆含糖量存在显著差异(P<0.05),“新高粱3号”适宜早播,以4月25日播种较为适宜;T601适宜迟播,以5月8日播种较为适宜。相关分析结果表明,不同播期下不同品种甜高粱茎秆糖分含量与平均温度、降水、日照时数和风速存在显著相关(P<0.05),可根据气温、降水和日照时数进行甜高粱含糖量预测。
In order to determine the suitable sowing dates and the key meteorological factors of sugar content in sweet sorghum, the sweet sorghum cultivars in Manas region of Xinjiang were used as experimental materials to study the changes of sugar content in sweet sorghum under different sowing dates and its relationship with meteorological factors Conducted a comparative analysis. The results showed that with the delay of growth period, the total sugar content and sucrose content in the stem of sweet sorghum increased gradually and reached the highest maturity stage. The content of reducing sugar reached its maximum at flowering stage and then decreased gradually after filling stage and reached the lowest at maturity stage. There was a significant difference in the sugar content of sweet sorghum stalks between different sowing dates (P <0.05), “New sorghum 3” was suitable for early sowing, sowing on April 25 was more suitable; T601 was suitable for late sowing, 8 sowing more appropriate. The results of correlation analysis showed that there was a significant correlation between the sugar content and the mean temperature, precipitation, sunshine duration and wind speed of different sorghum sowing dates under different sowing dates (P <0.05). According to temperature, precipitation and sunshine duration, Sugar forecast.