Relationships between the selenium content in flue-cured tobacco leaves and the selenium content in soil in Enshi, China tobacco- growing area
Xu, Z. (Henan Agricultural Univ., Zhengzhou (China). Coll. of Tobacco Science) | Shao, H. (Henan Agricultural Univ., Zhengzhou (China). Coll. of Tobacco Science) | Li, S. (Henan Agricultural Univ., Zhengzhou (China). Coll. of Tobacco Science) | Zheng, C.
Relationships between the selenium content in flue-cured tobacco leaves and the selenium content in soil in Enshi tobacco-growing area were analyzed. The results indicated that: The selenium content in flue-cured tobacco leaves in Enshi was high, ranging from 0.30 to 29.30 mg·per kg with the mean of (8.37 plus minus 5.83) mg·per kg. The content of selenium in flue-cured tobacco among different positions was X2F greater than C3F greater than B2F among different altitudes was medium altitude (800m Tilde 1200m) greater than high altitude (greater than or equal to 1200m) greater than low altitude. (3) There was significantly positive-correlation between the selenium content in soil and the selenium content of flue-cured tobacco leaves (correlation coefficient was 0.949). Based on the correlation analysis, the regression equation, gamma= -0.1082chi3 + 1.2494chi2 - 1.9628chi + 8.1647 was established between soil available selenium and the selenium content in flue-cured tobacco leaves for 72 samples. Regression equation reached a significant level by F-test.
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