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对山东22个植烟县169个乡镇的2001年、2002年和2004年共计464个烤烟初烤烟叶C3F样品的评吸指标得分与同期5～8月降水进行了相关和逐步回归分析,结果表明,(1)降水与烟叶评吸质量的相关和逐步回归分析结果基本一致;(2)香气质、余味、杂气、刺激性、燃烧性、总得分与降水的回归方程达极显著水平,劲头和灰色与降水的回归方程达显著水平,浓度和香气量与降水量在0.05显著水平下没有得到逐步回归方程。(3)评吸总得分与5月和8月降水量呈正相关;燃烧性与5月和8月降水量呈负相关;劲头与6月降水量,呈正相关;香气质与5月降水量呈负相关,与6月降水量呈正相关;余味和杂气与5月和5～8月降水量呈正相关;刺激性与5～8月总降水量呈正相关。
A total of 464 flue-cured tobacco C3F samples from 2001, 2002 and 2004 were collected from 169 villages in 22 Shandong Tobacco-planting counties. The scores of the index of smoking and the precipitation from May to August in the same period were analyzed by correlation and stepwise regression analysis. (1) The correlation between precipitation and tobacco smoking quality and the stepwise regression analysis are basically the same; (2) The regression equation of aroma quality, aftertaste, gas, irritation, combustibility, total score and precipitation reached the extremely significant level, And gray and precipitation regression equation reached a significant level, concentration and aroma volume and precipitation at 0.05 significant level did not get stepwise regression equation. (3) There was a positive correlation between the total score of aspiration and the precipitation in May and August; the degree of combustibility was negatively correlated with the precipitation in May and August; the positive correlation between the momentum and the precipitation in June; Negative correlation with precipitation in June was positively correlated; aftertaste and miscellaneous gas was positively correlated with precipitation in May and May-August; irritation was positively correlated with total precipitation in May-August.