Phenotyping and association analysis of grain zinc content with agro-morphological traits in a core rice germplasm

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.donorInternational Center for Tropical Agricultureen
cg.contributor.donorCGIAR Trust Funden
cg.coverage.countryIndia
cg.coverage.iso3166-alpha2IN
cg.coverage.regionSouthern Asia
cg.coverage.regionAsia
cg.identifier.doihttps://doi.org/10.22271/chemi.2020.v8.i2k.8845en
cg.identifier.projectIFPRI - HarvestPlus
cg.issn2349-8528en
cg.issue2en
cg.journalInternational Journal of Chemical Studiesen
cg.reviewStatusPeer Reviewen
cg.volume8en
dc.contributor.authorTripathy, Swapan K.en
dc.contributor.authorBehera, Suraj K.en
dc.contributor.authorSahu, Dibyabharatien
dc.date.accessioned2025-01-29T12:57:57Zen
dc.date.available2025-01-29T12:57:57Zen
dc.identifier.urihttps://hdl.handle.net/10568/171277
dc.titlePhenotyping and association analysis of grain zinc content with agro-morphological traits in a core rice germplasmen
dcterms.abstractA set of 47 biofortified core germplasm lines of rice were estimated for grain zinc (Zn) content to explore high Zn donors and to determine the degree of association of Zn content with agro-morphological traits including seed yield. The top Zn dense (≥20ppm) genotypes identified were Nagina 22 (28.1ppm), BG 102(25.8ppm), Dudh Kandar (25.6ppm), R-RHZ-7 (24.7ppm) and IR 85850-AC157-1 (24.0ppm). R-RHZ-7 recorded maximum EBT/m2 along with long panicle, while Nagina 22 maintained dwarf plant type with excellent grain fertility (≥92%), thin hull and known high degree of drought tolerance. Among these, IR 85850-AC157-1(24.0ppm) and R-RHZ-7 (24.7ppm) retained high grain zinc content along with moderately high seed yield potential. Grain number/panicle (r=0.757**), days to flowering, days to maturity and fertility percentage revealed strong positive correlation with seed yield. Grain Zn content had non-significant negative association with seed yield indicating genetic enhancement for Zn may not have much yield penalty. Interestingly, Zn content revealed positive significant relationship with grain breadth, but feeble negative association with grain length and kernel length indicating that selection for bold grain types would enrich Zn content. The above Zn rich elite genotypes with desirable ancillary traits may serve as potential donors for biofortification breeding programme.en
dcterms.accessRightsOpen Access
dcterms.available2020-03-01
dcterms.bibliographicCitationTripathy, Swapan K.; Behera, Suraj K.; and Sahu, Dibyabharati. 2020. Phenotyping and association analysis of grain zinc content with agro-morphological traits in a core rice germplasm. International Journal of Chemical Studies 8(2): 685-691. https://doi.org/10.22271/chemi.2020.v8.i2k.8845en
dcterms.extentpp. 685-691en
dcterms.issued2020-03-01
dcterms.languageen
dcterms.licenseOther
dcterms.publisherAkiNik Publicationsen
dcterms.subjectzincen
dcterms.subjectriceen
dcterms.subjectbiofortificationen
dcterms.subjectseedsen
dcterms.subjectyieldsen
dcterms.subjectnutritionen
dcterms.subjectmalnutritionen
dcterms.subjectassociation mappingen
dcterms.typeJournal Article

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