【摘要】 本文采用多元协方差分析法测验甜菜不同品种对影响含糖率的关键气象因子的反应。结果表明黑龙江省已通过审定和推广使用的12个品种对8、9月份累积降雨量的反应趋势和程度基本一致,而对9月份平均气温虽然反应趋势一致,但程度上有显著差别。各地在选用品种时,应充分考虑其对当地9月份气温条件的适应性。更多还原

【Abstract】 The responses of sugar content of different sugarbeet varieties to total rainfall in August and September and mean air temperature in September were analysed by the method of multivariate analysis of covariance. The test datas with sugar content of 12 sugarbeet varieties was from eight local field tests in 1981-1989 in Heilongjiang. The result of the analysis showed that the tested varieties were generally unanimous in the responsive tendency and degree with their sugar content towards the rainfall in Aug. and Sep., and were also unanimous in the responsive tendency towards the mean air temperature in Sep. but prominently different in the responsive degree. In planting, it is important to consider the adaptability of sugarbeet variety to local air temperature in Sep..更多还原