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比江中下游地区油菜开花期间(下/3～下/4)的气象条件优劣是影响油菜产量的主要因素之一。据研究,油菜每角粒数与单株产量有着十分密切的关系(R~2=0.8697),分析气象条件对油菜每角粒数的影响,建立“每角粒数一气象因子”的预报模式,这对掌握油菜开花结实动态,确定开花结实的气象指标,为改善栽培措施,增加每角粒数,有着重要意义。
The meteorological conditions during the rapeseed bloom in the middle and lower reaches of the river (under / 3 ~ next / 4) are one of the main factors affecting the yield of rapeseed. According to the research, there is a very close relationship between the number of grains per plant and the yield per plant (R ~ 2 = 0.8697). The influence of the weather conditions on the number of grains per canopy is analyzed, and the forecasting model This is of great importance in grasping the dynamics of flowering and fruiting of rape and determining the meteorological index of flowering and fruiting. It is of great significance to improve the cultivation measures and increase the number of grains per corner.