花粉通量与气象要素的关系及其在预报小麦、玉米产量上的前景

应用花粉通量测定新技术,于1992～1994年在小麦(Triticum aestivum L.)、玉米(Zea mays L.)传粉期间,应用库尔式收集仪收集和测定空气中的花粉,记录气象资料,进行统计分析,确定小麦、玉米产量与它们最大传粉期空气中花粉浓度的相对应数据,根据这些数据,试图建立禹城实验区小麦和玉米产量预报图式。

THE RELATIONSHIP BETWEEN POLLEN FLUX AND METEOROLOGICAL ELEMENTS AND ITS PROSPECT AS A TECHNIQUE OF CROP-OUTPUT PREVISION OF WHEAT AND MAIZE

The crop output has been successfully forecasted for more than ten years on the basis of pollen flux abroad. The annual crop output depends upon meteorological elements (temperature, wind velocity, precipitation, etc.) These elements have influence on the pollination intensity (airborne pollen density, number of pollen grains m-3air) , which reflects directly the crop output. During 1992 to 1994, the authors had collected and measured the airborne pollen with Cour's sampler, and recorded the major meteorological data. From statistical analysis, the authors have obtained data on the relationship between the outputs of wheat and maize and their pollen density during the maximum pollination period. Thus fonnulating a preliminary model for crop-output prevision of wheat and maize has been attempted.