【摘 要】
：
不同品种的烤烟叶面积存在极显著差异,其生长规律符合Logistic曲线,呈现前期慢,中期快,后期趋于稳定。叶面积的增长与气候日子的通径分析表明:旬均气温对叶面积增长主要是通
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不同品种的烤烟叶面积存在极显著差异,其生长规律符合Logistic曲线,呈现前期慢,中期快,后期趋于稳定。叶面积的增长与气候日子的通径分析表明:旬均气温对叶面积增长主要是通过旬总日照的间接作用实现的。旬均地温、旬总降雨量度旬总日照对叶面积增长主要是直接作用。对叶面积增长影响最大的因素是旬均气温和旬总日照的共同作用,其次是它们的各自作用。
The leaf area of different varieties of flue-cured tobacco leaves had extremely significant differences. The growth pattern accorded with Logistic curve, which showed slow early period, fast middle period and stable later period. The increase of leaf area and the climatic analysis of the climatic days indicated that the increase of leaf area during the ten-day average temperature was mainly achieved through the indirect effects of total daily sunshine. Ten-day average temperature, ten-day total rainfall of ten days of total sunshine on the growth of leaf area is mainly a direct role. The most influential factor on leaf area growth is the combined effect of average air temperature and total sun exposure, followed by their respective roles.
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