The Impact of Certain Growth Treatments on Some Physiological Traits and Vitamin C Content in the Nirvin Pepper Cultivar
محورهای موضوعی : Research On Crop EcophysiologyPezhman Hadiyan 1 , Mehrdad Jafarpour 2
1 - Department of Horticultural Sciences, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran
2 - Associate Professor, Edible and Medicinal Mushroom Research Center and Department of Horticultural Science, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran
کلید واژه: Keywords:Wood vinegar, Biochar, Gibberellic acid, Humic acid, Fulvic acid,
چکیده مقاله :
The Impact of Certain Growth Treatments on Some Physiological Traits and Vitamin C Content in the Nirvin Pepper Cultivar PEZHMAN HADIYAN1, MEHRDAD JAFARPOUR2* 1-MSc., Department of Horticultural Science, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran 2- Associate Professor, Edible and Medicinal Mushroom Research Center and Department of Horticultural Science, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran * Corresponding author E-mail: Mehrdad.jafarpour@gmail.com Received: 15 September 2023 Accepted: 12 January 2024 ABSTRACT Capsicum annuum L. from the Solanaceae family is one of the most important and widely consumed vegetables in the world due to its valuable nutritional content. This study investigates the effects of growth-promoting treatments on certain growth characteristics and vitamin C content in the Nirvin pepper cultivar. The treatments included wood vinegar (1.25- 2.5– 3.33 ml per liter), biochar (100–200-300 g per plant), gibberellic acid (25–50-75 ml per liter), Crecer organic fertilizer (2.5–5-7.5 ml per liter), humic acid (150– 200- 250 mg per liter), fulvic acid (5– 6.5- 8 g per liter), and a mixture of fulvic acid + humic acid (5- 6.5- 8 g and 150– 200- 250 mg per liter, respectively). These were applied in 84 plots (each with two plants), using a randomized complete block design with three replications, alongside a control treatment (distilled water spray). The results showed that growth regulators significantly influenced the number of flowers, fruit diameter, pedicel length, and vitamin C content in bell peppers. The best results in terms of overall physiological traits and vitamin C content were achieved with applying fulvic acid and gibberellic acid. Although other treatments also showed a significant positive effect, leading to an increase in most traits compared to the control, they indicated a clear and substantial impact on growth characteristics and vitamin C content in bell peppers. Therefore, the use of growth regulators is recommended to enhance the quantity and vitamin C content of bell peppers. Keywords:Wood vinegar, Biochar, Gibberellic acid, Humic acid, Fulvic acid
The Impact of Certain Growth Treatments on Some Physiological Traits and Vitamin C Content in the Nirvin Pepper Cultivar PEZHMAN HADIYAN1, MEHRDAD JAFARPOUR2* 1-MSc., Department of Horticultural Science, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran 2- Associate Professor, Edible and Medicinal Mushroom Research Center and Department of Horticultural Science, Isfahan( khorasgan) Branch, Islamic Azad University, Isfahan, Iran * Corresponding author E-mail: Mehrdad.jafarpour@gmail.com Received: 15 September 2023 Accepted: 12 January 2024 ABSTRACT Capsicum annuum L. from the Solanaceae family is one of the most important and widely consumed vegetables in the world due to its valuable nutritional content. This study investigates the effects of growth-promoting treatments on certain growth characteristics and vitamin C content in the Nirvin pepper cultivar. The treatments included wood vinegar (1.25- 2.5– 3.33 ml per liter), biochar (100–200-300 g per plant), gibberellic acid (25–50-75 ml per liter), Crecer organic fertilizer (2.5–5-7.5 ml per liter), humic acid (150– 200- 250 mg per liter), fulvic acid (5– 6.5- 8 g per liter), and a mixture of fulvic acid + humic acid (5- 6.5- 8 g and 150– 200- 250 mg per liter, respectively). These were applied in 84 plots (each with two plants), using a randomized complete block design with three replications, alongside a control treatment (distilled water spray). The results showed that growth regulators significantly influenced the number of flowers, fruit diameter, pedicel length, and vitamin C content in bell peppers. The best results in terms of overall physiological traits and vitamin C content were achieved with applying fulvic acid and gibberellic acid. Although other treatments also showed a significant positive effect, leading to an increase in most traits compared to the control, they indicated a clear and substantial impact on growth characteristics and vitamin C content in bell peppers. Therefore, the use of growth regulators is recommended to enhance the quantity and vitamin C content of bell peppers. Keywords:Wood vinegar, Biochar, Gibberellic acid, Humic acid, Fulvic acid
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