Effect of Foliar Application of Different Chemicals on the Growth of Field Pea (Pisum sativum var. arvense L.) under Terminal Heat Sress
Narang Kapoor
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
C.L. Maurya *
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
V.K. Yadav
Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Pranava Praanjal
Department of Vegetable and Spice Crops, Uttar Banga Krishi Vishwavidyalaya, Pundibari Cooch Behar, West Bengal-736165, India.
Mridulata Pant
Department of Horticulture, Assam Agricultural University, Jorhat, Assam-785013, India.
Aparna Jyoti
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Amrit Kumar Nayak
Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Amit Kumar
Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Jay Singh
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Yogendra Pratap Singh
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Ajay Pratap Singh
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
Sanjay Babu
Department of Seed Science and Technology, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (Uttar Pradesh)-208002, India.
*Author to whom correspondence should be addressed.
Abstract
Heat stress is one of the main factors that restrict crop production and field pea (Pisum sativum L.) is one of the most affected crops. A temperature beyond the optimum for the crop causes irreversible damage to the growth and whole plant development. The objective of this study was to assess the different exogenous chemicals in terms of their effectiveness in counteracting high-temperature stress in field pea. A field trial was held during the rabi seasons of 2023-24 and 2024-25 at the Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. The experimental design adopted was randomized block design with twelve treatments and three replications. The results showed that salicylic acid foliar application (400 ppm) significantly increased the plant height, reduced the days to 50 % flowering, and days to maturity under high temperature stress conditions. Salicylic acid and thiourea, in general, enhanced plant growth and productivity due to enhanced antioxidant defense mechanism. Thus, the foliar application of these types of exogenous chemicals could be a practical and highly effective method to reduce heat stress and maintain the production of field peas even in conditions of increasing temperatures.
Keywords: Field pea, plant growth, salicylic acid, thiourea, terminal heat stress