Analysis Of Ecologicai Diversity And Response To Meteorological Factors On Content Of Aroma Substances In Flue-cured Tobacco

This study clouds and smoke high aroma varieties and11,87as test material, choose5different altitude biome, namely: guizhou bijie weining, guizhou province shi bing county (an altitude of823m), henan sanmenxia have (at an altitude of799m) of henan province nanyang NaXiangXian (elevation356m), henan xuchang YuZhouShi (140m) above sea level. Trying to through the analysis of different varieties of main flavoring substances content in different ecological areas of differences and response, and the main meteorological factors for rational planning and management of high aroma of flue‐cured tobacco production to provide scientific basis. According to the test results and analysis, preliminary conclusions are as follows:1) prepare11smoke tobacco polyphenols content is significantly higher than clouds,87, and performance in five areas. Ecological range, NaXiang tobacco polyphenols content is higher, shi grasp the content of polyphenols is low. That sunshine hours increased to develop tobacco polyphenols content. Mature and prosperous long sunshine time effect on the content of polyphenols is larger, the overall performance for the sunshine time> temperature>> cloudiness rainfall> relative humidity> evaporation.2) and11smoke tobacco carotenoid content is significantly higher than clouds,87, and performance in five areas. Ecological range, Lu Shihe NaXiang tobacco carotenoid content is higher. Sunshine hours increased tobacco carotenoid synthesis and accumulation. Stretch root period and mature period of sunlight hours to the content of carotenoids, overall performance is: temperature> sunshine duration> evaporation> cloud cover> relative humidity> rainfall.3) prepare11smoke tobacco leaf chlorophyll content is significantly higher than clouds,87, and performance in five areas. Ecological zone, shi bing tobacco leaf chlorophyll content is higher, NaXiang tobacco leaf chlorophyll content is low, temperature have negative effect on tobacco leaf chlorophyll content. Phase field temperature on the influence on tobacco leaf chlorophyll content, and overall performance are: temperature> cloud cover> sunshine duration> relative humidity>> rainfall evaporation.4) in addition to11in shi yu smoke grasp region with over87content of petroleum ether extract difference was not significant, the clouds87is significantly higher than in other areas. With clouds and smoke1187tobacco petroleum ether extract content in have high, low shi bing. Ecological range that have tobacco petroleum ether extract content is higher, weining sites low content of petroleum ether extract. Visible rainfall has negative effect to the content of petroleum ether extract, sunshine time is difference. Vigorous and mature period of rainfall influence on the petroleum ether extract content of tobacco leaves, and overall performance is: the rainfall> temperature> sunshine duration> cloud cover> relative humidity> evaporation.5) prepare11smoke tobacco glandular trichome secretion content and clouds, significant difference was found in87, and performance in five areas. Amount of glandular trichome secretion and smoke11, alpha west hodginsii three ene glycol and beta westpac ene glycol content in five areas are higher than contrast varieties was over87. Ecological range, have total tobacco glandular trichome secretion and the component content is higher, low weining sites. Visible sunshine hours and the average temperature is effect to the content of glandular trichome secretion, rainfall to the negative effect to the secretion of glandular hairs. Sunlight hours is relatively strong influence on tobacco leaf carotenoid content. Larger correlation with middle tobacco glandular trichome secretion component field development climate factor is: the sunshine duration, average temperature and rainfall.6) and11tobacco smoke two sugar content in five areas are higher than contrast varieties was over87. In addition to shi bing nicotine content is slightly higher than the clouds,87,11rest and smoke tobacco leaf protein, total nitrogen and nicotine content than vapour,87. Ecological range, shi bing smoke zone sugar and potassium content is higher, total nitrogen, nicotine, chlorine and protein content is low, and NaXiang and jin smoke nicotine and chlorine content is higher, low sugar and potassium content. Average temperature and sunshine hours of nitrogen and chlorine content in positive role, negative role on sugar and potassium content. Average temperature had the greatest influence on main chemical composition of tobacco. Larger correlation with middle main chemical composition of tobacco field development climate factor is: the average temperature, sunshine time and relative humidity.7) and total11smoke tobacco neutral aroma substances in five areas were higher than87is higher than the clouds; Carotenoids degradation products content except with clouds in have a87were higher than in other areas over87; In tomato ketone content in Lu Shihe jin is higher than the clouds (87), in other regions below the vapour,87; Brown reaction product content in jin shi bing and weining is higher than the clouds,87; Phenylalanine class material content in shi bing, jin, and the winner is higher than the clouds87, lower than other areas over87. Ecological range, grasp total neutral aroma substances in flue‐cured tobacco were higher in the, jin and NaXiang lower total tobacco leaf neutral aroma substances. The content of carotenoids degradation products, the township is higher, have lower. Tobacco, township in tomato ketone content is higher, weining is low. Brown reaction product content is higher in shi bing, NaXiang is low. Phenylalanine is a class content is higher in shi bing, NaXiang and weining is low. Visible sunshine time of tobacco leaf carotenoids degradation products and tomato ketone content positive role. Larger correlation with central neutral aroma constituents in tobacco field development climate factor is: the sunshine time, cloud cover, and the average temperature.8) and the smoke in11five regional sensory quality is superior to the clouds,87, in sweet, tender degrees, quality of aroma, concentration of aroma, aftertaste, index of the mixed gas and stimulating, etc. Ecological range, grasp and have comments on the quality of tobacco leaf, weining is poorer. Prepared11smoke scent among grown in tobacco producing area (guizhou grasp and sanmenxia) have better sensory quality, grown in henan jin and NaXiang sensory quality is poorer. Visible maturity suitable temperature and duration for comments on the quality of tobacco leaf. Larger correlation with middle tobacco sensory quality field development climate factor is: the average temperature, cloud cover, and sunshine time.Key words: meteorological factors; Flue‐cured tobacco; Glandular trichome secretion; The petroleum ether extract; Total phenol; Plastid pigment; Chemical composition; Neutral aroma substances; Sensory quality...