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近年来,玉米畸形穗在吉林省时有发生,有的造成严重减产。玉米畸形穗的发生在年际间差异很大,一般认为主要是7月下旬低温或雨后低温造成的。为了摸清畸形穗的发生条件,为预报预防畸形穗提供依据,我们进行了畸形穗调查,并利用自制装置进行了模拟降温试验,还分析了多年气象资料,初步完成畸形穗预测方程。
In recent years, maize malformation spike occurred in Jilin Province from time to time, and some caused serious cuts. The occurrence of maize malformation spikes varies widely from anomaly, and is generally believed to be mainly caused by low or low temperatures in late July. In order to find out the occurrence conditions of deformity spikes and provide evidences for forecasting deformities spikes, we conducted a survey of deformities spikes and carried out simulated cooling experiments using self-made devices. We also analyzed years of meteorological data and initially estimated malformed spikes.