Intra-population Variability for Grain Iron and Zinc Densities in Commercial Open-pollinated Varieties of Pearl Millet

Kanatti, A and Radhika, K N and Padma, V and Janila, P and Govindaraj, M and Rai, K N (2015) Intra-population Variability for Grain Iron and Zinc Densities in Commercial Open-pollinated Varieties of Pearl Millet. International Journal of Economic Plants, 2 (4). pp. 171-174. ISSN 2349-4727

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Abstract

Intra-population variability using S1 progenies was studied for grain iron (Fe) and zinc (Zn) densities and 1000-grain weight in two released and commercial open-pollinated varieties (ICTP 8203 and ICMV 221) of pearl millet. Analysis of variance showed highly significant variability for all the traits in both populations. In ICTP 8203, Fe density varied from 44 to 76 mg kg−1 and Zn density from 40 to 60 mg kg−1; while in ICMV 221, Fe density varied from 40 to 78 mg kg−1 and Zn density from 31 to 52 mg kg−1. Higher broad-sense heritability was observed for both micronutrients in both populations (77% in ICTP 8203 and 86% in ICMV 221 for Fe; and 71% in ICTP 8203 and 72% in ICMV 221 for Zn). This substantial genetic variability coupled with high heritability implies good prospects for improvement of both populations for these micronutrients. The highly significant and high positive correlation observed between Fe and Zn densities (r=0.66 in ICTP 8203 and r=0.72 in ICMV 221, p<0.01), suggested that both micronutrients can be effectively improved simultaneously. Both micronutrients had non-significant or small positive correlation with 1000-grain weight, implying these can be improved in large-seeded genetic backgrounds.

Item Type:	Article
Divisions:	RP-Dryland Cereals
CRP:	CGIAR Research Program on Agriculture for Nutrition and Health (A4NH)
Uncontrolled Keywords:	Pearl millet, iron, zinc, open-pollinated varieties, variability
Subjects:	Mandate crops > Millets > Pearl Millet
Depositing User:	Mr Arun S
Date Deposited:	04 Sep 2019 08:49
Last Modified:	04 Sep 2019 08:49
URI:	http://oar.icrisat.org/id/eprint/11280
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	The research reported here forms part of a Ph.D. thesis of Anand Kanatti, submitted to Professor Jayashankar Telangana State Agriculture University, Hyderabad 500 030, Telangana, India. It was supported by a grant from the Harvest Plus Challenge Program of the CGIAR, and conducted under the CGIAR Research Program on Agriculture for Nutrition and Health.
Links:	Google Scholar

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