Improving the performance of Bt-cotton under heat stress by foliar application of selenium. (9th August 2018)

• Record Type: Journal Article
• Authors: Saleem, Muhammad Farrukh; Kamal, Muhammad Asif; Anjum, Shakeel Ahmad; Shahid, Muhammad; Raza, Muhammad Aown Sammar; Awais, Muhammad
• Is Part Of: Journal of plant nutrition. Volume 41:Number 13(2018)
• Page Start: 1711
• Page End: 1723
• Publication Date: 2018-08-09
• Subjects: cotton -- lipid peroxidation -- phenology -- secondary metabolites -- terminal heat -- yield components; Plants -- Nutrition -- Periodicals; Plants -- Effect of minerals on -- Periodicals; Deficiency diseases in plants -- Periodicals; 575.76
• DOI: 10.1080/01904167.2018.1459694
• Languages: English
• ISSNs: 0190-4167

Abstract

ABSTRACT: Heat stress at reproductive stages of cotton is a leading encumbrance to accomplish yield potential. An experiment was conducted to alleviate adversities of terminal heat stress on cotton. Experiment was conducted at University of Agriculture Faisalabad, Pakistan during 2013 and repeated in 2014 using Randomized Complete Block Design (RCBD) with split arrangement. Treatments were comprised of heat stress in main plots, viz., H0 = no heat imposition, H1 = heat imposition at squaring, and H2 = heat imposition at flowering. Selenium was foliar applied in split plot, viz., Se0 = 0, Se50 = 50, Se100 = 100, and Se150 = 150 mg L −1 . Cell membrane thermostability, soluble proteins, and total phenolics were reduced significantly under heat stress leading to reduced cotton yield and related components. Maximum membrane thermostability, total phenolics, soluble proteins, opened bolls, boll weight, sympodial branches, and seed cotton yield were recorded with the application 150 mg Se L −1 .