Genetic Variation for Nitrogen Use Efficiency Traits in Global Diversity Panel and Parents of Mapping Populations in Pearl Millet

Pujarula, V and Pusuluri, M and Bollam, S and Das, R R and Ratnala, R and Adapala, G and Thuraga, V and Rathore, A and Srivastava, R K and Gupta, R (2021) Genetic Variation for Nitrogen Use Efficiency Traits in Global Diversity Panel and Parents of Mapping Populations in Pearl Millet. Frontiers in Plant Science (TSI), 12 (625915). pp. 1-17. ISSN 1664-462X

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Abstract

Nitrogen (N) is one of the primary macronutrients required for crop growth and yield. This nutrient is especially limiting in the dry and low fertility soils where pearl millet [Pennisetum glaucum (L.) R. Br] is typically grown. Globally, pearl millet is the sixth most important cereal grown by subsistence farmers in the arid and semi-arid regions of sub-Saharan Africa and the Indian subcontinent. Most of these agro-ecologies have low N in the root zone soil strata. Therefore, there is an immense need to identify lines that use nitrogen efficiently. A set of 380 diverse pearl millet lines consisting of a global diversity panel (345), parents of mapping populations (20), and standard checks (15) were evaluated in an alpha-lattice design with two replications, 25 blocks, a three-row plot for 11 nitrogen use efficiency (NUE) related traits across three growing seasons (Summer 2017, Rainy 2017, and Summer 2018) in an N-depleted precision field under three different N levels (0%-N0, 50%-N50, 100%-N100 of recommended N, i.e., 100 kg ha

Item Type:	Article
Divisions:	Research Program : Genetic Gains
CRP:	CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC)
Uncontrolled Keywords:	Pearl millet, Nitrogen use efficiency, Genotypic variations, Phenotyping, Nitrogen-responsive
Subjects:	Mandate crops > Millets > Pearl Millet Others > Crop Yield Others > Genetics and Genomics Others > Food and Nutrition Others > Fertilizer Applications Others > Plant Growth
Depositing User:	Mr Arun S
Date Deposited:	20 May 2021 15:21
Last Modified:	20 May 2021 15:22
URI:	http://oar.icrisat.org/id/eprint/11811
Official URL:	https://doi.org/10.3389/fpls.2021.625915
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We are grateful to Nagaraj Goud N., Ravinder T., and Shyam U. for data collection at the experimental site. We are also thankful to soil science laboratory technicians for Nitrogen (N) analysis in different samples and tissues.
Links:	Google Scholar

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