eprintid: 11955
rev_number: 8
eprint_status: archive
userid: 3170
dir: disk0/00/01/19/55
datestamp: 2022-02-08 06:09:42
lastmod: 2022-02-08 06:09:42
status_changed: 2022-02-08 06:09:42
type: article
metadata_visibility: show
creators_name: Govindaraj, M
creators_name: Kanatti, A
creators_name: Rai, K N
creators_name: Pfeiffer, W H
creators_name: Shivade, H
icrisatcreators_name: Govindaraj, M
icrisatcreators_name: Kanatti, A
icrisatcreators_name: Shivade, H
affiliation: ICRISAT (Patancheru)
affiliation: Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Cali
affiliation: HarvestPlus Program, International Food Policy Research Institute (IFPRI), Washington
country: India
country: Columbia
country: USA
title: Association of Grain Iron and Zinc Content With Other Nutrients in Pearl Millet Germplasm, Breeding Lines, and Hybrids
ispublished: pub
subjects: S5
subjects: ag2
subjects: s2.17
divisions: GRP_RFFS
crps: crp1.15
full_text_status: public
keywords: Biofortification, Iron, Macronutrients, Micronutrients, Pearl millet, Zinc
note: The authors greatly acknowledge support from Dr. James
Stangoulis, Professor of Plant Science, currently based in Flinders University, Australia, for grain nutrient analysis.
abstract: 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; p<0.01). Fe and Zn were positively and significantly correlated
with Ca (r = 0.26–0.61; p < 0.05) and Mn (r = 0.24–0.50; p < 0.05). The findings indicate
that joint selection for Fe, Zn, and Ca will be effective. Substantial genetic variation
and high heritability (>0.60) 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.
date: 2022-02
date_type: published
publication: Frontiers in Nutrition (TSI)
volume: 8
number: 746625
publisher: Frontiers Media
pagerange: 1-12
id_number: doi:10.3389/fnut.2021.746625
refereed: TRUE
issn: 2296-861X
official_url: https://doi.org/10.3389/fnut.2021.746625
related_url_url: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=10.3389%2Ffnut.2021.746625&btnG=
related_url_type: pub
citation:   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     
document_url: http://oar.icrisat.org/11955/1/fnut-08-746625%20Association%20of%20Grain%20Iron%20and%20Zinc.pdf