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2023 Volume 2 Issue 1
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CHEN Tian-cai, WANG Qin, WANG Ke, et al. Effects of Different Leaf Clipping Times on Growth and Resistance of ‘K326’ Tobacco Plant[J]. PLANT HEALTH AND MEDICINE, 2023, (1): 57-66. doi: 10.13718/j.cnki.zwyx.2023.01.008
Citation: CHEN Tian-cai, WANG Qin, WANG Ke, et al. Effects of Different Leaf Clipping Times on Growth and Resistance of ‘K326’ Tobacco Plant[J]. PLANT HEALTH AND MEDICINE, 2023, (1): 57-66. doi: 10.13718/j.cnki.zwyx.2023.01.008
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Effects of Different Leaf Clipping Times on Growth and Resistance of ‘K326’ Tobacco Plant

  • 1. Fengjie Branch of Chongqing Tobacco Company, Chongqing 404600, China;

  • 2. College of Plant Protection, Southwest University, Chongqing 400715, China;

  • 3. China Tobacco Guangxi Industry Corporation Limited, Nanning 530001, China

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  • Received Date: 16/11/2022

  • MSC: S572

  • In order to explore the effects of different leaf clipping times on tobacco seedlings before transplanting and the effects on the growth and resistance of tobacco plants after transplanting in Chongqing area, this study took flue-cured tobacco variety ‘K326' as the material to carry out the analysis of different leaf clipping times on the growth and resistance of tobacco leaves at later growing stage. The results of laboratory and field experiments showed that leaf clipping treatment could activate SOD and POD activities of tobacco seedlings, up-regulate the expression of resistant genes ERF, GST, Oxidea and Pr1, and promote root length, dry matter accumulation and reduce the occurrence of red spot disease, wildfire disease at seedling stage. The effect was most significant with two times leaf clipping. Therefore, the economic benefit of cutting leaves twice in production is the best.
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Effects of Different Leaf Clipping Times on Growth and Resistance of ‘K326’ Tobacco Plant

  • Received Date: 16/11/2022

Abstract: In order to explore the effects of different leaf clipping times on tobacco seedlings before transplanting and the effects on the growth and resistance of tobacco plants after transplanting in Chongqing area, this study took flue-cured tobacco variety ‘K326' as the material to carry out the analysis of different leaf clipping times on the growth and resistance of tobacco leaves at later growing stage. The results of laboratory and field experiments showed that leaf clipping treatment could activate SOD and POD activities of tobacco seedlings, up-regulate the expression of resistant genes ERF, GST, Oxidea and Pr1, and promote root length, dry matter accumulation and reduce the occurrence of red spot disease, wildfire disease at seedling stage. The effect was most significant with two times leaf clipping. Therefore, the economic benefit of cutting leaves twice in production is the best.

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