Indian Society of Genetics & Plant Breeding

Selection index and selection criteria for green ear maize (Zea mays L.) over environments

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Selection indices were constructed for green ear of normal
field maize
(Zea mays L.) utilizing fifteen important
characters in three different environments separately and
over environments. Comparison of three different methods
of assigning weight to generate selection criteria indicated
that inbred parents differed in performance in each
environment. While single cross hybrid 1 x 3 was observed
to be consistent over all the three environments, among
other crosses 5 x 7 at Pantnagar and Almora; 3 x 7, 4
x 5 at Almora and Gorakhpur; and 3 x 4 at Pantnagar
and Gorakhpur were consistent in index value for green
ear characters. The behaviour of inbred parent and single
cross hybrids was influenced by genotype by environment
interaction as evidenced from alteration of ranking
according to specific environment

Keywords: Green ear maize, selection index, environment, inbred, single cross hybrid


Year: 2006
Volume: 66
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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