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根据三年的田间试验资料,我们分析了跃进五号夏大豆品种的气候生态适应性。结果表明:夏大豆产量有随纬度增高而递减的趋势,生育期长短与播种日期和热量条件关系密切,播期每推迟四天,全生育期平均将缩短一天,不同播期叶面积动态的模拟方程r=K/(1+ea+bt+ct~3)为我们初步拟定平均气温25℃作为供试品种旺盛生长期内适宜温度下限。鼓粒期间有高温少雨和多雨寡照两种天气型常导致百粒重下降,籽粒增重最适宜的平均气温为21.8℃,降水量为102.8毫米。
According to three years of field trial data, we analyzed the climatic and ecological adaptability of Yuejin No.5 summer soybean. The results showed that the yield of summer soybean tended to decrease with the increase of latitude. The length of growth period was closely related to the sowing date and caloric condition. Every delayed four days of sowing date would shorten one day on average and the dynamic simulation of leaf area at different sowing dates The equation r = K / (1 + ea + bt + ct ~ 3) is the initial temperature of 25 ℃ for our preliminary study. During the process of drumming, the two types of weather, such as high temperature, low temperature and rain and oligozoa, often resulted in the decrease of 100-grain weight. The most suitable average temperature for grain weight gain was 21.8 ℃ and the precipitation was 102.8 mm.