【摘要】 本文对蔺草开花与温光条件关系作了分析研究.根据浙江宁波市郊区1992-2000年的农业气候资料的分析计算表明,影响蔺草冈山3号草茎开花率（SFR）的主要气象因子为12月下旬、2月中旬的平均气温,2月下旬的日照时数和3月下旬的雨量.依据春化作用的机理和上述影响因子的分析,得SFR的模拟模型为:SFR=其中∑j<iXj为第i旬（从12月到来年12月共9旬）的春化作用贡献量累加:当33℃≤旬平均气温≤6.4℃,则第j旬的春化作用贡献量Xj=1,否则为0;SHi为第i旬的日照时数;e是自然对数底.模型输出结果与92/93～98/99年的实测值拟合较好,预报的99/2000年开花率为5.73％,与实际值5.6％相差仅0.13％,表明模型能较好反映蔺草开花与光温条件的关系此外蔺草的春化过程与日照时数有互作关系,特别是春化后期.更多还原

【Abstract】 The relations of flowering to light and temperature conditions in Mat Rush were studied based on agro-climatic data during 1992 to 2000. The results indicated that the main climatic factors which affect stem flowering rate (SFR) of Mat Rush (cv. Gangshan No.3) were the third ten-clay period average temperature (AT) in December and the second ten-day period in February, sunlight hours(SH) of the third ten-day period in February and the rainfall of the third ten-day period in March. According to vernalization mechanism and above analysis, the simulation model for SFR was: SFR = 1.023 + 0.258{} The estimatingresults approximated to the observed value of 1992/1993-1998/1999. and predicted SFR=5.73% in 1999/2000, which was 0.13% differentiation from the observed one (5.6%). The model better illustrate the relationship between flowering and light and temperature conditions. Interaction between vernalization and sunlight hours was indicated as well, especially in the late stage of vernalization.更多还原