Effects of Environmental Factors on the Growth and Quality of the Tobacco Variety Zhusha 2: A Case Study in Yunan, China

文献类型： 外文期刊

第一作者： Zhang, Yihan

作者： Zhang, Yihan;Zhao, Xinlin;Cheng, Qian;Luan, Mingbao

作者机构：

关键词： Altitude; Ecological conditions; Nicotiana tabacum L; Precipitation; Soil nutrient

期刊名称：PAKISTAN JOURNAL OF AGRICULTURAL SCIENCES （ 影响因子：0.6； 五年影响因子：0.7 ）

ISSN： 0552-9034

年卷期： 2024 年 61 卷 3 期

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收录情况： SCI

摘要： The geographical environment can significantly impact the growth and quality of tobacco leaves. Therefore, the objective of this study was to assess the response of a new tobacco variety (Zhusha 2), to different geographical environments and to identify the best site for its cultivation. Field experiments were conducted in 17 different counties in Yunnan using Zhusha 2. The physical properties, chemical components, and quality of the tobacco leaves were determined and assessed. Soil nutrients, pH, organic matter, altitude, precipitation, and monthly average temperature were shown to significantly affect tobacco quality. The physical properties of the tobacco leaves varied significantly between sites, and the chemical components of the tobacco leaves also differed markedly across locations. No significant relationships were found between environmental factors and the sensory quality of tobacco leaves. Soil available nutrient content was significantly and negatively related to appearance quality, but soil pH showed a notable positive relationship with appearance quality. Climatic factors and altitude did not significantly affect appearance quality. Based on the Chinese standard (YC/T 138-1998), the tobacco leaves from Yongren (County) and Gejiu scored the highest with 134.9 out of 150 points for appearance and sensory qualities, followed by those from Shidian, but the leaves from Longyang scored the lowest with 125.8. However, the scores did not differ significantly among the 17 sites. Considering nicotine content, tobacco leaf from the 17 sites were further classified into three clusters: low nicotine leaf, < 0.5 g/kg (Luliang, Shilin, Chuxiong, Yongren), middle nicotine leaf, >0.5 g/kg & < 2 g/kg (Shuangbai, Mile, Shidian, Chengjiang, Longling, Gejiu, Jianshui, Malong, Xuanwei, Shizong), and high nicotine leaf, >2 g/kg (Changning, Tengchong, Longyang). Therefore, based on quality and toxic nicotine content scores, Luliang, Shilin, Chuxiong, and Yongren were identified as more suitable locations for cultivating Zhusha 2.

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