不同时期播种对甜菜糖锤度及产量的影响

Effect of Different Sowing Dates on Sugar Content and Yield of Beet

研究甜菜分期播种环境因子对甜菜糖锤度及产量的影响,为黑龙江省的甜菜合理栽培提供科学依据。对甜菜品种KWS3418在5个不同播期条件下的环境因子、产量和糖锤度进行测定,分析它们之间的相关性。结果表明,播期对土壤含水量影响较小;气温积温与产量、糖锤度显著正相关;在黑龙江省甜菜品种KWS3418适宜早播;各环境因子与产量的相关性为气温积温>土壤积温>平均土壤含水量>平均空气相对湿度。

The effect of different sowing stage on beet sugar content and yield was studied in order to provide ascientific basis for reasonable cultivation of sugar beet in Heilongjiang province. Correlation analysis of each environmental factor,yield,beet sugar content of KWS3418 in 5 different sowing dates were measured. The results showed that sowing date had a little effect on soil moisture content,however the accumulated temperature was significantly positively correlated with yield and sugar content;KWS3418 was a suitable variety for early soweing in Heilongjiang province. The order of correlation between yield with other meteorological factors was as follow：air accumulated temperature 〉soil accumulated temperature〉 average soil moisture content 〉average air relative humidity.