Zinc and iron biofortification in pearl millet cultivars as influenced by different fertifortification strategies in semi arid tropics

Lakshmi, E J and Kumar, M D and Sawargaonkar, G L and Naik, A H K and Dhananjaya, B C (2022) Zinc and iron biofortification in pearl millet cultivars as influenced by different fertifortification strategies in semi arid tropics. Journal of Plant Nutrition, 46 (4). pp. 589-599. ISSN 0190-4167

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Abstract

Two field experiments were conducted during Kharif 2018 and 2019 on clay loam soils at Zonal Agricultural and Horticultural Research Station, Babbur farm, Hiriyur, Karnataka to evaluate the performance of pearl millet cultivars by different zinc (Zn) and iron (Fe) fertifortification methods. Micronutrient (Zn and Fe) management strategies were employed in main plots that include application of recommended NPK, along with recommended NPK supply of Fe and Zn through soil, foliar application and FYM enrichment along with plant growth promoting rhizobacteria (PGPR). Three pearl millet cultivars [Variety - ICTP 8203 Fe (Dhanshakti), Hybrid - ICMH 1202 and local cultivar (variety - WCC 75)] were considered in sub plots laid in split plot design with three replications. Three methods of micronutrient application tested improved the grain Fe and Zn concentrations of both biofortified cultivars Dhanshakti and Hybrid along with grain yield. Enrichment of FYM with Fe and Zn resulted in higher concentration and uptake of Fe and Zn than other modes of micronutrient application. The hybrid ICMH 1202 had obtained significantly higher grain yield (2203 kg ha−1), grain micronutrient concentration of pearl millet (50.52 and 83.88 mg kg−1 Zn and Fe, respectively) with the application of enriched FYM + PGPR along with recommended NPK and found the best.

Item Type: Article
Divisions: Global Research Program - Resilient Farm and Food Systems
CRP: UNSPECIFIED
Uncontrolled Keywords: Biofortified cultivars, Fe concentration, fertifortification, micronutrient uptake and Zn concentration
Subjects: Mandate crops > Millets > Pearl Millet
Others > Semi-Arid Tropics
Others > Biofortification
Depositing User: Mr Nagaraju T
Date Deposited: 23 Apr 2024 08:14
Last Modified: 23 Apr 2024 08:14
URI: http://oar.icrisat.org/id/eprint/12643
Official URL: https://www.tandfonline.com/doi/abs/10.1080/019041...
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: I extend my sincere thanks to Learning Systems Unit (LSU), ICRISAT, for their fellowship during the research tenure.
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