阜新烟区主要气候因子与烤烟化学品质的关系分析

通过对2008~2011年阜新烟区烤烟季降雨量、日照时数、月均温和烤烟化学品质的关系分析,表明阜新烟区各气候因子变异系数的大小依次为:大田降雨量>大田期总日照时数>大田期均温,其中大田降雨量变异系数最高,是该烟区较不稳定的气候因子。7月份的降雨量与中部叶总糖含量呈显著负相关(r=-0.956),与上部叶和中部叶钾含量呈显著负相关(分别为-0.974和-0.953),与氯含量呈显著正相关(r=0.965)。烤后中部叶烟碱含量随着日照总时数的增加而减少,受生育期各月份日照时数的影响较小。8月份均温与烟叶总糖含量和糖碱比呈显著正相关(r=0.977和r=0.974)。

Study on Relationships between Main Climatic Factors and Chemical Quality of Flue-cured Tobacco in Fuxin Area

According to the data of climatic basic conditions （ rainfall, sunshine hours, monthly average temperature ） during the production of flue -cured tobacco in Fuxin area from 2008 to 2011, the author analyzed the relationships between main climatic factors and the chemical quality of flue -cured tobacco leaves .The results indicated that the variable coefficient of various climatic factors had the following order： rainfall ＆gt;total sunshine hours ＆gt;monthly average temperature .Because rainfall had the highest variable coefficient among 3 climatic factors, it was the most unstable climate factor in this area .The rainfall in July was significant-ly negatively correlated with the total sugar content in middle leaves （r=-0.956）, with the potassium content in upper leaves （r=-0.974） and middle leaves （r=-0.953）, and it was significantly positively correlated with the chlorine content （r=0.965）. The nicotine content in the baked middle leaves decreased with the increase in the total sunshine hours , but it was not affected by the monthly sunshine hours in the whole growth period .The monthly average temperature in August had significantly positive correla-tion with the total sugar content （r=0.977） and the ratio of sugar to nicotine （r=0.974） in tobacco leaves.