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为了探索烟叶物理特性与烤烟生产大田期气象因素的关系,以我国13个典型植烟区域烤烟的3个部位样品为研究对象,运用广义可加模型对烟叶物理特性和气象因子之间的关系进行了研究分析,结果表明:日照百分率、日降水量≥0.1 mm日数、平均相对湿度、极端最高气温、极端最低气温对烟叶叶面密度有重要影响。就部位而言,上部叶叶面密度对大田期的降水量比中下部烟叶更为敏感。平均最高气温、平均最低气温、极端最高气温、平均气压、平均水汽压和平均风速对烟叶填充值有重要影响,中部叶的填充值与日降水量≥0.1 mm日数关系显著;极端最高气温、平均最高气温和平均温度对含梗率有重要影响,同时日降水量≥0.1 mm日数对中上部烟叶的含梗率也有显著的影响。就部位而言,上部叶含梗率受气象因素影响相对较弱。
In order to explore the relationship between the physical characteristics of flue-cured tobacco leaves and the meteorological factors in flue-cured tobacco production in the field, three samples of flue-cured tobacco from 13 typical tobacco-growing areas in China were used as research objects. The generalized additive model was used to analyze the relationship between the physical characteristics and meteorological factors The results showed that the sunshine percentage, daily precipitation ≥0.1 mm days, average relative humidity, extreme maximum temperature and extreme minimum temperature had important effects on leaf area density. In terms of location, the leaf area density of the upper leaves is more sensitive to the precipitation during the field than that of the middle and lower leaves. Mean maximum temperature, mean minimum temperature, extreme maximum temperature, mean air pressure, mean vapor pressure and mean wind speed had significant effects on the filling value of tobacco leaves. The filling value of middle leaves was significantly correlated with the daily precipitation ≥0.1 mm. The extreme maximum temperature, mean The highest temperature and average temperature had a significant impact on the percentage of stems, while the daily precipitation ≥0.1 mm had a significant effect on the percentage of stems in middle and upper leaves. In terms of location, the upper part of the leaf peduncle rate is relatively weak by the meteorological factors.