Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (4): 72-79.doi: 10.11924/j.issn.1000-6850.2013-1589

Special Issue: 资源与环境 烟草种植与生产 农业生态

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The Response of δ13C Change to Flue-cured Tobacco in Different Ecological Sub-regions

  

  • Received:2013-06-07 Revised:2013-07-04 Online:2014-02-05 Published:2014-02-05

Abstract: In order to investigate that the differences of geographical, such as latitude and longitude and altitude, impact on tobacco planting, Midu County and Xiangyun County ,which in Dali , Camp Street in Yuxi were selected for the test point. The climate conditions, leaf stable carbon isotope composition (δ13C), photosynthetic pigments, resistance physiological characteristics and chemical composition were analyzed. The experiment showed that: temperature is the most important factor to influence flue-cured tobacco. Compared with Xiangyun and Midu, photosynthetic pigment have no obvious differences, Midu’s flavonoid,δ 13 c and LMA is higher. The variation trend of physiological characteristics on Midu and Camp Street is similar with Midu and Xiangyun. Compared the chemical composition of coordination, the Midu’s tobacco chemical composition is better, Xiangyun and Camp Street followed by, but the two are closer. On tobacco and soil’s δ13C ratio for sorting, still Midu's maximum, so Midu ecological environment is the most conducive to Honghuadajinyuan planting. The δ13C is the core of this experiment, and preliminary explanation that why Honghuadajinyuan are widely cultivated in Dali.