Maize grain nutritional quality amelioration with seed-applied thiamine and indole-3-acetic acid under arsenic toxicity

Muhammad Atif and Shagufta Perveen ()
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Muhammad Atif: Government College University
Shagufta Perveen: Government College University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 3, No 92, 7827-7855

Abstract: Abstract Human health and sustainable agricultural production are both susceptible to numerous toxic metal(loid)s that cause serious chronic diseases in the human via food chain. There found no conspicuous knowledge which could address the proper strategic measures to limit arsenic (As) uptake in maize grains and improve seed nutritional value. Careful consultation of previous literature explored no single study till present day which could reveal about the contribution of seed-applied THI (thiamine) + IAA (indole-3-acetic acid) under toxic As stress (AsS) levels to enhance the seed nutritional value and minimize the As administered damages in specific context of plant nutrition and crop yield. For this purpose, current study was organized to limit the As-uptake in maize parts (root, shoot and grains) and to magnify the grain nutritional constituents. Seed-applied supplementation of THI (250 mgL−1), IAA (30 µM) and mixture (THI + IAA) under AsS levels (0, 50, 100 mg/kg) was investigated. The results demonstrated the significant (P ≤ 0.001) deteriorations in maize kernel proximate components (kernel sugars, proteins, fiber, oil fat, starch), crop yield and seed micro- and macronutrients when exposed to AsS. In contradiction, the maize plants developed from seed-applied THI and IAA treatments significantly (P ≤ 0.001) increased the maize yield, kernel proximate components and grain nutrients of under AsS and NS. Maximum significant (P ≤ 0.001) improvements of maize kernel nutrients, crop yield and proximate components were evident with combined seed application of THI + IAA as compared to alone applications under AsS and NS conditions.

Keywords: Food security; Malnutrition; Pearl variety; Antioxidant defense; Seed proximate components (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03037-y

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