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Association of Grain Iron and Zinc Content With Other Nutrients in Pearl Millet Germplasm, Breeding Lines, and Hybrids

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Relation http://oar.icrisat.org/11955/
https://doi.org/10.3389/fnut.2021.746625
doi:10.3389/fnut.2021.746625
 
Title Association of Grain Iron and Zinc Content With Other Nutrients in Pearl Millet Germplasm, Breeding Lines, and Hybrids
 
Creator Govindaraj, M
Kanatti, A
Rai, K N
Pfeiffer, W H
Shivade, H
 
Subject Plant Nutrition
Biofortification
Food and Nutrition
 
Description Micronutrient deficiency is most prevalent in developing regions of the world, including
Africa and Southeast Asia where pearl millet (Pennisetum glaucum L.) is a major
crop. Increasing essential minerals in pearl millet through biofortification could reduce
malnutrition caused by deficiency. This study evaluated the extent of variability of
micronutrients (Fe, Zn, Mn, and Na) and macronutrients (P, K, Ca, and Mg) and their
relationship with Fe and Zn content in 14 trials involving pearl millet hybrids, inbreds, and
germplasm. Significant genetic variability ofmacronutrients andmicronutrients was found
within and across the trials (Ca: 4.2–40.0mg 100 g−1, Fe: 24–145mg kg−1, Zn: 22–
96mg kg−1, and Na: 3.0–63mg kg−1). Parental lines showed significantly larger variation
for nutrients than hybrids, indicating their potential for use in hybrid parent improvement
through recurrent selection. Fe and Zn contents were positively correlated and highly
significant (r=0.58–0.81; p0.60) for multiple grain minerals provide good selection accuracy
prospects for genetic enhancement. A highly positive significant correlation between Fe
and Zn and the nonsignificant correlation of grain macronutrients and micronutrients with
Fe and Zn suggest that there is scope to achieve higher levels of Fe/Zn simultaneously in
current pearl millet biofortification efforts without affecting other grain nutrients. Results
suggest major prospects for improving multiple nutrients in pearl millet.
 
Publisher Frontiers Media
 
Date 2022-02
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11955/1/fnut-08-746625%20Association%20of%20Grain%20Iron%20and%20Zinc.pdf
Govindaraj, M and Kanatti, A and Rai, K N and Pfeiffer, W H and Shivade, H (2022) Association of Grain Iron and Zinc Content With Other Nutrients in Pearl Millet Germplasm, Breeding Lines, and Hybrids. Frontiers in Nutrition (TSI), 8 (746625). pp. 1-12. ISSN 2296-861X