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Response of barley (Hordeum vulgare L.) genotypes to different nitrogen levels under irrigated late sown conditions

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Title Response of barley (Hordeum vulgare L.) genotypes to different nitrogen levels under irrigated late sown conditions
 
Creator Todar Mal
 
Contributor Phogat, S.B.
 
Subject Nitrogen, Yield, Barley,Genotypes, Malt recovery
 
Description A field experiment was conducted during winter (rabi) season of 2011-2012 at Research Farm
of Chaudhary Charan Singh Haryana Agricultural University, Hisar, to study the response of barley
(Hordeum vulgare L.) genotypes to different nitrogen levels under irrigated late sown conditions. The
experiment was laid out in split plot design with three replications keeping five nitrogen levels (0, 30,
60, 90 and 120 kg N/ha) in main plots and five genotypes (DWR 91, DWRUB 64, DWRUB 52, DWR
73 and BH 885) in sub-plots.
The growth parameters (plant height, dry matter accumulation, number of tillers) increased
significantly with every addition of 30 kg N/ha up to 90 kg N/ha at all the periodical stages of growth
except 30 DAS. Application of 120 kg N/ha resulted in higher values of growth parameters but it was
statistically at par with 90 kg N/ha. More nitrogen application resulted in delays in phenophases.
Application of 120 kg N/ha delayed the heading and maturity of barley as compared to lower doses of
nitrogen application.
Nitrogen application resulted in significant enhancement in effective tillers, spike length,
grains per spike and 1000-grain weight over control (no nitrogen application) and the maximum values
of yield attributes were recorded with 120 kg N/ha. The maximum grain yield (4596 kg/ha) was
recorded with application of 120 kg N/ha which was significantly higher than 0, 30 and 60 kg N/ha but
at par with 90 kg N/ha. Application of 90 kg N/ha resulted in 53.59, 24.37 and 8.58 per cent increase in
grain yield as compared to control, 30 and 60 kg N/ha. The quality parameters of barley i.e. protein
content, bold grains percentage, hectoliter weight was improved with application of nitrogen. The malt
recovery revealed strongly negative correlation with nitrogen application and recorded the highest with
control treatment (0 kg N/ha). Application of 120 kg N/ha resulted in higher net return (`27631) and
benefit cost ratio (1.99), however, it was closely equal to 90 kg N/ha (1.98)
There was significant variation among genotypes in respect of growth and yield. Plant height
and dry matter accumulation was maximum in DWR 91 as compared to rest of the genotypes. The
yield attributes as spike length and 1000-grain weight were significantly superior in DWR 91 but grains
per spike were higher in DWRUB 64.
The genotype DWR 91 proved significantly superior in terms of grain yield as compared to
DWR 73 and DWRUB 64, moreover, DWRUB 52 and BH 885 were non-significant to it. The protein
content was recorded lowest in DWR 91, whereas, malt recovery was maximum in DWR 91. The
higher net return (` 23297) and benefit cost ratio (1.86) was attained in DWR 91 as compared to rest of
the genotypes tested.
 
Date 2016-09-03T14:11:19Z
2016-09-03T14:11:19Z
2013
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/75358
 
Language en
 
Format application/pdf
 
Publisher CCSHAU