不同土壤类型对烤烟色素及其降解产物的影响

【目的】探索不同土壤类型对烤烟烟叶质体色素及其降解产物含量的影响，为选择合适的土壤类型以及有针对性地改善土壤状况提供参考。【方法】2010年在吉林延边地区选择暗棕壤、黑砂土、白浆土等3种土壤为研究对象，以当地主栽烟草品种“吉烟9号”为试材，研究不同土壤类型对烟叶质体色素及其降解产物的影响。【结果】土壤条件对烤烟烟叶质体色素及其降解产物均有不同程度的影响。暗棕壤土质条件下，烟叶的叶绿素含量（42.58 μg/g）、类胡萝卜素含量（265.17 μg/g）及类胡萝卜素降解产物总量（32.15 μg/g）均最高，新植二烯含量（526.44 μg/g）稍低于黑砂土条件下烟叶；黑砂土条件下烟叶中的新植二烯含量最高（540.78 μg/g），其他质体色素和香气物质总量均处于3种土壤的中间水平；白浆土条件下质体色素含量及其降解产物均处于较低水平。【结论】暗棕壤土质更有利于烟叶香气物质的生成，且各香气成分含量较为协调。

Effect of different soil textures on chromoplast pigment and its degradation products in flue cured tobacco

【Objective】 The effects of different soil textures(dark brown soil,DBS;black sand soil,BSS;albic soil,AS) on the contents of chromoplast pigment and its degradation products of flue-cured tobacco leaves were studied in Yanji of Jilin Province.The appropriate soil type was selected and targeted to improve the soil conditions so as to provide reference.【Method】 A tobacco cultivar "Jiyan 9" was selected as the material.The effects of different soil textures on the contents of chromoplast and its degraded products of flue-cured tobacco were researched.【Result】 DBS conditions,the contents of chlorophyll(42.58 μg/g),carotenoids(265.17 μg/g),and carotenoid degradation products(32.15 μg/g) in post-cured tobacco leaf were the highest among these three conditions,and the content of neophytadiene(526.44 μg/g) was at the middle level;In BSS conditions,the content of neophytadiene(540.78 μg/g) was the highest in post-cured tobacco leaf among these three conditions,and the contents of chromoplast pigment and total aroma neophytadiene were at the middle level;AS conditions,the contents of chromoplast pigment and its degradations were in lower level among these three conditions.【Conclusion】 Dark brown soil is more conductive to the production of tobacco aroma,and the contents of flavor component are more coordinated.