【摘要】 为探讨甜菜的播期与气象等因子的关系,采用KWS3418品种在哈尔滨地区进行播期试验。结果表明:播种早,出苗时间早,播种至出苗及出苗至出苗完成时间长,出苗率高。通过SPSS的分析,播种至出苗期间,气温积温和土壤积温为主成分,特征值累积占到总方差的98.601%。温度都在可生长的范围之内,主要受平均湿度和土壤水分的影响。出苗至出苗完成期间,气温积温为第一主成分,单特征值占到总方差的90.678%,但与原先各个变量的相关系数比较一致,说明甜菜出苗至出苗完成,气温积温、土壤积温、平均湿度和土壤水分等均对甜菜有影响。更多还原

【Abstract】 For the discussion on the relationship between sowing date of sugar beet and meteorological factors,KWS3418 was taken as material to conduct the experiment in Harbin.The result showed that When sowing early,the emergence early,the duration was long from sowing to emergence and emergence to complete emergence,the rate of the emergence was high.Through the analysis of the SPSS,from sowing to emerging,the air accumulative temperature and soil accumulative temperature were the main components,the characteristic value accumulation to 98.601% of the total variance.Temperature was in growth range.It mainly influenced by average humidity and soil moisture.From emergence to completed emergence,the principal component was air accumulative temperature,and the single feature of value to 90.678% of the total variance.But related coefficient accorded with the original variables,it indicated that during this stage,the air accumulative temperature,soil accumulative temperature,average humidity and soil moisture were all had influence on sugar beet.更多还原