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Genetic variability and plant character association of grain Fe and Zn in selected core collection accessions of sorghum germplasm and breeding lines

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Title Genetic variability and plant character association of grain Fe and Zn in selected core collection accessions of sorghum germplasm and breeding lines
 
Creator Ashok Kumar, A
Reddy, B V S
Ramaiah, B
Sanjana Reddy, P
Sahrawat, K L
Upadhyaya, H D
 
Subject Sorghum
 
Description Sorghum is the third most important food crop in India after rice and wheat and is the staple food in Central India. It is also the staple for large tribal populations across the country. The poor and vulnerable groups in the society depend upon sorghum for their calorie and micronutrient requirement and in the absence of access and affordability to nutrient-rich foods like vegetables,
fruits and animal products, biofortification of sorghum helps in enhancing the nutritional security of this group. Research efforts at ICRISAT and elsewhere showed that there is considerable genetic variability and high heritability for grain Fe and Zn contents and it is possible
to genetically enhance the grain micronutrient content (Fe and Zn) in sorghum and other major staples. of variability in the sorghum germplasm accessions and breeding lines and the character association between grain Fe and Zn contents and with other agronomic traits.The main aim of this study was to identify promising donors in the core collection of sorghum germplasm accessions and breeding lines with the objective to use those with high grain Fe and Zn contents in the genetic enhancement program to develop biofortified sorghum cultivars. Significant positive correlation was observed between grain Fe and Zn contents (r=0.75) in the study. The five accessions, IS 5427, IS 5514, IS 55, IS 3760 and IS 3283, identified from the study with high grain Fe (>50 is on a continuing basis.
mg kg-1) and Zn (>37 mg kg-1) contents can be utilized to increase the diversity and micronutrient density of
sorghum hybrid parents in the future
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2009
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/1991/1/Geneticvariability7%25281%2529.pdf
Ashok Kumar, A and Reddy, B V S and Ramaiah, B and Sanjana Reddy, P and Sahrawat, K L and Upadhyaya, H D (2009) Genetic variability and plant character association of grain Fe and Zn in selected core collection accessions of sorghum germplasm and breeding lines. Journal of SAT Agricultural Research, 7. pp. 1-4. ISSN 0973-3094