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以往的生理学研究已经证明,花生种子的萌发速率与温度有密切关系,但对既定发芽率,所需的积温值及其数值特征,均未作过准确的估算。本文作者根据多年来不同播种期出苗日数差异颇大的观察结果,推定种子萌发所需积温为一恒值,并以当前大面积种植的白沙1016、徐州68—4、蓬莱一窝猴分别代表早、中、晚熟类型,在控制条件下进行了试验,以证实花生种子萌发所需有效积温为恒值的假设,并建立种子萌发与温度、时间的函数关系。
Previous physiological studies have shown that the germination rate of peanut seeds is closely related to the temperature. However, no accurate estimates have been made for the established germination rate, the accumulated temperature values and their numerical characteristics. According to the quite different observation results of the number of emergence days at different sowing dates, the author estimates that the accumulated temperature needed for seed germination is a constant value and is represented by Baisha 1016, Xuzhou 68-4 and Penglai 1 , Middle and late maturing types under the controlled conditions to confirm the assumption that the effective accumulated temperature required for the germination of peanut seeds is constant and to establish the seed germination as a function of temperature and time.