TY  - BP
AU  - Prasanna,B.M.
AU  - Mazumdar,S.
AU  - Tyagi,P.
AU  - Chakraborti,M.
AU  - Hossain,F.
AU  - Kanchikeri M. Manjaiah
AU  - Gupta,H.S.
AU  - Aggarwal,P.K.
AU  - Guleria,S.K.
AU  - Plaha,P.
AU  - Pixley,K.V.
ED  - Asian Regional Maize Workshop
TI  - Genetic variability for kernel iron and zinc densities in selected HarvestPlus and Indian maize genotypes
SN  - 978-979-1159-41-8
PY  - 2010///
CY  - Mexico, DF (Mexico)
PB  - CIMMYT
KW  - Maize
KW  - AGROVOC
KW  - Kernels
KW  - Iron
KW  - Zinc
KW  - Genetic variation
N2  - This study was aimed at evaluation of kernel iron (Fe) and zinc (Zn) concentrations in a set of 72 maize genotypes from diverse agroecologies in India, besides CIMMYT, Mexico. A set of 22 selected genotypes were analyzed to understand the stability of kernel iron and zinc concentrations in three different environments,  amely kharif (monsoon season) 2006 and 2007 at New Delhi, and rabi (winter season) at Hyderabad. The study revealed significant variation for the target traits among the genotypes. Kernel iron content among the 72 genotypes analyzed during kharif 2006 varied from 22.92 mg kg-1 to 49.85 mg kg-1, while the range for kernel Zn was found to be from 14.48 mg kg-1 to 37.58 mg kg-1. The genotype BAJIM-06-7 was found to have the highest mean of 55.56 mg kg-1 of kernel iron content across the three environments. V348 (47.96 mg kg-1), IML273 (44.15 mg kg-1), IML403 (43.79 mg kg-1) and BAJIM-06-14 (43.08 mg kg-1) were the other promising genotypes. For kernel zinc content, BAJIM-06-14 (41.37 mg kg-1) was the best performing genotype in all the three environments. VQL1 (38.77 mg kg-1), BAJIM-06-12 (35.07 mg kg-1), IML119 (34.13 mg kg-1) and BAJIM-06-10 (34.13 mg kg-1) were the other promising genotypes for kernel zinc content. Considering both traits, BAJIM-06-6 and BAJIM-06-14 were the most promising. No strong correlation between the kernel iron and zinc contents was found, indicating the need for independent selection for enhancing the concentration for these traits. Stability analysis revealed the significant role of the environment and G kernel Zn content with 30.15 mg kg-1, 33.61 mg kg-1 and 30.77 mg kg-1 during kharif 2006, rabi 2006/07 and kharif 2007, respectively. IML273 and IML288 were the stable genotypes for kernel iron content. SSR polymorphisms grouped 24 and 22 selected inbred lines from diverse sources into three and four major clusters, respectively, indicating the genetic diversity of the inbred lines analyz
T2  - Asian Regional Maize Workshop, 10. Maize for Asia - Emerging Trends and Technologies; Proceedings of The Asian Regional Maize Workshop; Makassar (Indonesia); 20-23 Oct. 2008
ER  -