貴州烤煙色素含量和顏色值隨生育期的變化及其相關(guān)性

　　摘 要：為了進一步探討貴州烤煙生長特性，以K326、畢納1號、貴煙1號、貴煙2號和K326有機煙為材料，研究了大田生育期（35、70、105 d）煙葉質(zhì)體色素含量和顏色參數(shù)值的變化并進行了相關(guān)分析。結(jié)果表明，生育期烤煙煙葉質(zhì)體色素含量和顏色參數(shù)（H*除外）值均呈逐漸下降的趨勢。畢納1號35 d和105 d質(zhì)體色素含量顯著高于其他材料；K326有機煙70 d和105 d質(zhì)體色素含量顯著低于其他材料，但其L*、b*和C*值顯著高于其他材料。不同烤煙材料生育期煙葉L*和H*值差異均顯著，且b*和C*值105 d顯著高于35 d和75 d。不同烤煙材料煙葉質(zhì)體色素含量與顏色參數(shù)值相關(guān)均顯著，其中質(zhì)體色素含量與L*、a*值相關(guān)系數(shù)較大，在0.805～0.866之間。線性回歸分析表明，變量葉綠素b R2值（R2=0.915）最大，變量類胡蘿卜素R2值（R2=0.847）最��；自變量中線性回歸系數(shù)正值Xa*最大，其次是XH*。相對類胡蘿卜素，烤煙生育期煙葉葉綠素含量與顏色參數(shù)值的線性回歸性更好。
　　關(guān)鍵詞：貴州；烤煙；生育期；質(zhì)體色素；顏色
　　中圖分類號：S572.01 文章編號：1007-5119（2014）04-0064-06 DOI：10.13496/j.issn.1007-5119.2014.04.012
　　Changes of Pigment Contents and Color Parameters Value with Growth Stage and their Correlation of Flue-cured Tobacco Leaves in Guizhou
　　WU Shengjiang1， ZHANG Changyun1， GUO Liang2， XIE Liangwen3， ZHU Guangbing4，
　　YANG Zhixiao1， TU Yonggao1， XIE Yishu1*
　�。�1. Guizhou Academy of Tobacco Science， Guiyang 550081， China； 2. Guizhou Provincial Tobacco Company of China National Tobacco Corporation， Guiyang 550004， China； 3. Sichuan Provincial Tobacco Company of China National Tobacco Corporation， Chengdou 610031， China； 4. College of Tobacco Science of Yunnan Agricultural University， Kunming 650201， China）
　　Abstract： In order to further explore the growth characteristics of flue-cured tobacco in Guizhou， the change and correlation analysis of plastid pigment contents and color parameter values of flue-cured tobacco leaves in the different growth stage （35 d， 75 d， 105 d） with cultivar K326， Bina1， Guiyan1， Guiyan2 and organic K326 were studied. The result showed that pigment contents and color parameter values of different cultivars reduced gradually with the exception of H* in the different growth stage of flue-cured tobacco. Bina1 had a higher pigment content in the 35 d and 105 d while Organic K326 had a lower pigment content and a bigger value in the 75 d and 105 d. L*and H* value among different cultivars were significant difference in the different growth stage. Meanwhile， b* and C* value in the 105 d were significantly higher than that in the 35 d and 75 d. Correlation between pigment content and color parameters was significant among different cultivars. Correlation coefficients between pigment content and L*， a* was in the range of 0.805 to 0.866. R2 value （R2=0.915） of chlorophyll variable was the largest while R2 value （R2=0.915） of carotenoid variable was the smallest. In the independent variables， regression coefficient of Xa* was the largest， and then XH*. Compared with carotenoid， chlorophyll content had a better linear regression with color parameters value of flue-cured tobacco leaves in the growth stage. This provides theoretical foundation for improving the tobacco production level on basis of the study of the change and correlation analysis of pigment content and color parameters value in the different growth stage of tobacco leaves in Guizhou.

相關(guān)熱詞搜索：烤煙 貴州 相關(guān)性 色素 生育