| Effects of biological agent application on leaf physiological characteristics, potassium and chlorine contents of flue\|cured tobacco |
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| DOI：10.7606/j.issn81000-7601.2020.03.23 |
| Key Words: biological agent flue\|cured tobacco physiological characteristics potassium and chlorine contents economic characteristic |
| Author Name | Affiliation | | MAO Jiawei | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | ZHANG Xiang | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | LI Liang | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | YU Qiong | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | SI Xianzong | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | SUO Yanyan | Institute of Plant Nutrition, Resources and Environmental Sciences, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China | | WU Junlin | Tobacco Company of Zhumadian, Zhumadian, Henan 463000, China | | KONG Dehui | Tobacco Company of Luoyang, Luoyang, Henan 471000, China |
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| Abstract: |
| In order to discuss the effects of biological agent application on flue\|cured tobacco, a field experiment was carried out in 2016 using Qinyan 96 and Yuyan 6 as materials in Luoyang (DA: arid cultivation tobacco planting areas) and Zhumadian (RA: rain\|fed tobacco planting areas ). The experiment included CK (T1), biological agent A (T2), biological agent B (T3), biological agent C (T4), biological agent D (T5), and biological agent E (T6). The effects of biological agent application on leaf physiological characteristics, potassium and chlorine contents of flue\|cured tobacco were studied. The results showed that biological agent application treatments increased soluble sugar content by 0.38%~1.43%, while the content of MDA decreased by 0.3~7.36 μmol·g-1 compared with CK. Except the treatment T5 in RA, compared with CK, the activity of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD) of biological agent application treatments were increased by 2.1~26.2 μmol·min-1·g-1, 0.6~40 U·g-1, and 546~2 531 U·g-1, respectively. The nutrient test of middle leaves analysis showed that：at 45 days after transplanting, biological agent application treatments (except treatment T4 in RA ) could increase the potassium content in middle leaves by 0.42%~1.32%, while that increased by 0.03%~1.00% at 60 days after transplanting. According to the economic characters, the output value and supper tobacco rate of flue\|cured tobacco with treatment T3 increased by 14 708 yuan·hm-2 and 23.1% in RA, while that of treatment T2 increased by 7 849 yuan·hm-2 and 13.7% in DA compared with CK treatment. Chemical component analysis indicated that the potassium content in flue\|cured tobacco leaves of treatment T3 in RA and treatment T2 in DA increased by an average of 0.40% and 0.57%, respectively. Biological agent application improved the chemical components coordination. |
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