Indian Society of Genetics & Plant Breeding

Evaluation of QPM (Zea mays) genotypes for grain-yield and quality traits under different water stress conditions

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The effects of different moisture stress conditions on
performance of 85 quality protein maize (QPM) genotypes
were measured. Significant variations among the
genotypes were observed for grain yield/plant and quality
traits (protein, lysine & tryptophan).The study showed that
hybrids NP-06-07R-74-10-1-1 x HO6R-6136-64-1-4-1 and
NP-06-07R -73-6-1#1 x HO6R-6136-64-1-4-1 gave superior
performance in all the environments with respect to yield,
economic heterosis and percentage loss in stress. The
inbreds viz., (CML 161 X CLQ-6203) B-4-1-1-B-2-B-1 and
HO6R-6136-64-1-4-1 were best for grain yield, while, the
inbreds NP-06-07R -76-11-2-1, NP-06-07R -73-6-1#1 and
(CML 161 X CLQ-6203)B-4-1-1-B-2-B-1 were best for both
lysine and tryptophan. The correlation between different
moisture stress conditions and quality traits was positive.
A single cross hybrid NP-06-07R -73-6-1#1 x HO6R-6136-
64-1-4-1 was identified as superior for grain yield/plant,
lysine and tryptophan contents in all the environments as
compared to best check HQPM-5

Keywords: QPM (Zea mays), grain yield, combining ability, heterosis, quality traits, correlation, moisture stress.


Year: 2012
Volume: 72
Issue: 3
Article DOI: N/A
Print ISSN: 0019-5200
Online ISSN: 0975-6906


S. L. Godawat info_circle
C. M. Parihar info_circle
K. B. Shukla info_circle

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