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Fe and Zn concentrations in sorghum - datasets

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Title Fe and Zn concentrations in sorghum - datasets
 
Identifier http://hdl.handle.net/11038/10081
 
Creator A Ashok Kumar
Belum VS Reddy
B Ramaiah
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2012-10-06
 
Relation Ashok Kumar, A and Reddy, B V S and Ramaiah, B (2012) Database for grain Fe and Zn in sorghum – A proposal. Journal of SAT Agricultural Research, 10. pp. 1-7
Ashok Kumar, A and Reddy, B V S and Ramaiah, B and Sahrawat, K L and Pfeiffer, W H (2013) Gene effects and heterosis for grain iron and zinc concentration in sorghum [Sorghum bicolor (L.) Moench]. Field Crops Research, 146. pp. 86-95. ISSN 0378-4290
 
Subject Biofortification
Sorghum
Iron and Zinc
 
Description The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) conducts research on sorghum biofortification to enhance the grain Fe and Zn concentrations. Preliminary studies by Reddy et al. (2005) indicated limited variability for grain Fe and Zn concentrations in sorghum hybrid parents, advanced breeding lines and germplasm accessions. Large genetic variability for grain Fe and Zn concentrations however, was reported in sorghum land race accessions and hybrid parents and commercial hybrids (Ashok Kumar et al 2009 and 2012). Significant positive correlation was observed between grain Fe and Zn concentrations (Reddy et al. 2010; Ashok Kumar et al. 2011). In a field study conducted at ICRISAT-Patancheru, India to enhance grain Fe and Zn under balanced nutrient application, nitrogen (N), phosphorus (P), potassium (K) along with sulfur (S), boron (B), iron (Fe) and zinc (Zn) were applied to the soil. However, these did not increase grain Fe and Zn concentrations, probably because the inherent availability of these nutrients in the soil was not limiting (Ashok Kumar et al. 2010).
Therefore, genetic enhancement for grain Fe and Zn concentrations is of critical importance. Availability of genetic variability and an understanding of the nature and magnitude of gene help in developing an effective breeding program to improve Fe and Zn concentrations. In attempting this, ICRISAT evaluated large number of landraces (2246), hybrid parents (>500 B-lines and 100 R-lines), breeding lines and commercial sorghum cultivars (67) over the years from 2005 to 2011 for assessing grain Fe and Zn concentrations and important agronomic traits. This paper is an attempt to present the vast variability observed in sorghum for grain Fe and Zn concentrations and to keep the entire information in public domain in the form of a database so that researchers interested in improving sorghum grain Fe and Zn concentrations make use of the information and the material. In addition to Fe and Zn, this database also contains informationon traits like days to 50% flowering, plant height, grain yield and grain size which are critical in any crop improvement program.
Citation: A Ashok Kumar; Belum VS Reddy; B Ramaiah, 2012-10-06, "Fe and Zn concentrations in sorghum - datasets", http://hdl.handle.net/11038/10081 International Crops Research Institute for the Semi-Arid Tropics [Distributor] V6 [Version]
 
Coverage Time Period Covered: 2005 - 2011
Date of Collection: 2005 - 2011
Country/Nation: India
Geographic Unit: Patancheru
 
Type Breeding
 
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A Ashok Kumar; Belum VS Reddy; B Ramaiah, 2012-10-06, "Fe and Zn concentrations in sorghum -datasets ", http://hdl.handle.net/11038/10081 International Crops Research Institute for the Semi-Arid Tropics