Climatic factors determine the yield and quality of Honghe flue-cured tobacco
Autor: | Yali Fu, Xiaolu Sun, Chen Zebin, Xia Tiyuan, Lulu Chen, Tang Zuoxin, Wang Binbin |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Crops
Agricultural 0106 biological sciences China Nitrogen Climate Nicotiana tabacum lcsh:Medicine 01 natural sciences Article Soil Soil pH Tobacco Cultivar Sugar lcsh:Science Analysis of Variance Multidisciplinary Ecology biology Plant Extracts Soil organic matter lcsh:R Soil chemistry Sowing Phosphorus 04 agricultural and veterinary sciences biology.organism_classification Carbon Plant Leaves Horticulture Potassium 040103 agronomy & agriculture Curing of tobacco 0401 agriculture forestry and fisheries lcsh:Q Sugars Climate sciences 010606 plant biology & botany |
Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | Flue-cured tobacco (Nicotiana tabacum L.) is a major cash crop in Yunnan, China, and the yield, chemical components, and their proportions decide the quality of tobacco leaves. To understand the effects of environmental factors (soil and climatic factors) on the yield and quality of flue-cured tobacco and determine the main regulating factors, we selected three flue-cured tobacco cultivars [K326, Yunyan87 (Yun87), and Honghuadajinyuan (Hongda)] grown in the Honghe Tobacco Zone. Indices related to yield and economic traits, chemical component properties, soil physical and chemical properties, and climatic factors at different planting sites, were evaluated. We used variance analysis, correlation analysis, and redundancy analysis (RDA) in this study. The results showed that the yield and chemical component properties of flue-cured tobacco, except for the number of left leaves and plant total sugar (PTS) content, were significantly correlated with climatic factors. Particularly, the yield increased in drier and sunnier weather. In terms of the carbon supply capacity, PTS, petroleum ether (PPE), and starch contents (PS) were higher under high-altitude and high-latitude climatic conditions, whereas for the nitrogen supply capacity, plant nitrogen (PTN) and nicotine (PN) contents improved under low-altitude and low-latitude climatic conditions. PTS, reducing sugar (PRS), potassium (PTK), chlorine (PCL), and PPE contents were negatively related to soil clay content, soil pH, and soil organic matter, whereas PRS and PTK contents were positively correlated with alkali-hydrolyzed nitrogen (AN). According to RDA, the soil clay, AN, available phosphorus (AP), and soil chlorine content (SCL) strongly affected the quality of flue-cured tobacco. The quality of the K326 and Yun87 cultivars was mostly influenced by moisture, whereas the quality of the Hongda cultivar was mostly affected by temperature. In conclusion, compared with soil properties, climatic factors more significantly affect the yield and quality of Honghe flue-cured tobacco leaves. |
Databáze: | OpenAIRE |
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