http://oar.icrisat.org/id/eprint/9985 2018-03-02T09:43:33Z info:eu-repo/semantics/descriptiveMetadata http://oar.icrisat.org/9985/ Genetic Variability, Genotype × Environment Interaction, Correlation, and GGE Biplot Analysis for Grain Iron and Zinc Concentration and Other Agronomic Traits in RIL Population of Sorghum (Sorghum bicolor L. Moench) Phuke, R M Anuradha, K Radhika, K Jabeen, F Anuradha, G Ramesh, T Hariprasanna, K Mehtre, S P Deshpande, S P Anil, G Das, R R Rathore, A Hash, C T Reddy, B V S Ashok Kumar, A Sorghum Genetics and Genomics The low grain iron and zinc densities are well documented problems in food crops, affecting crop nutritional quality especially in cereals. Sorghum is a major source of energy and micronutrients for majority of population in Africa and central India. Understanding genetic variation, genotype × environment interaction and association between these traits is critical for development of improved cultivars with high iron and zinc. A total of 336 sorghum RILs (Recombinant Inbred Lines) were evaluated for grain iron and zinc concentration along with other agronomic traits for 2 years at three locations. The results showed that large variability exists in RIL population for both micronutrients (Iron = 10.8 to 76.4 mg kg−1 and Zinc = 10.2 to 58.7 mg kg−1, across environments) and agronomic traits. Genotype × environment interaction for both micronutrients (iron and zinc) was highly significant. GGE biplots comparison for grain iron and zinc showed greater variation across environments. The results also showed that G × E was substantial for grain iron and zinc, hence wider testing needed for taking care of G × E interaction to breed micronutrient rich sorghum lines. Iron and zinc concentration showed high significant positive correlation (across environment = 0.79; p < 0.01) indicating possibility of simultaneous effective selection for both the traits. The RIL population showed good variability and high heritabilities (>0.60, in individual environments) for Fe and Zn and other traits studied indicating its suitability to map QTL for iron and zinc. Frontiers Media 2017-05 Article PeerReviewed application/pdf en http://oar.icrisat.org/9985/1/fpls-08-00712.pdf Phuke, R M and Anuradha, K and Radhika, K and Jabeen, F and Anuradha, G and Ramesh, T and Hariprasanna, K and Mehtre, S P and Deshpande, S P and Anil, G and Das, R R and Rathore, A and Hash, C T and Reddy, B V S and Ashok Kumar, A (2017) Genetic Variability, Genotype × Environment Interaction, Correlation, and GGE Biplot Analysis for Grain Iron and Zinc Concentration and Other Agronomic Traits in RIL Population of Sorghum (Sorghum bicolor L. Moench). Frontiers in Plant Science, 8 (712). pp. 1-13. ISSN 1664-462X http://dx.doi.org/10.3389/fpls.2017.00712 10.3389/fpls.2017.00712 info:eu-repo/semantics/objectFile info:eu-repo/semantics/humanStartPage