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PERFORMANCE OF SCENTED RICE VARIETIES UNDER DIFFERENT LEVELS OF NITROGEN

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Title PERFORMANCE OF SCENTED RICE VARIETIES UNDER DIFFERENT LEVELS OF NITROGEN
 
Creator REDDEPPA RAJU, V
 
Contributor JAGANNATHAM, A
 
Subject PERFORMANCE, SCENTED, RICE, VARIETIES, DIFFERENT, LEVELS, NITROGEN,
 
Description A field expe r'ime~t was conducted during late K'hari:f' 1987
on a sandy loam soil at Til'U pat1 campus of Andbra Pradesh
.M~ricultural Unive l"sity to study the performance of scented
rice varieties under diffe~nt levels ot nitrogen. Th9
treatments consisted of three varieties (Jeeragasamba,
uasmatbi 217 and Il!lT 8580) and five . levels ot nitro~en(O, :50,
60, 90 and 120 kg N/ha). The t rea.tments we 18 arranged in
· a randomiaed block design with factorial concept and replicated
thrice . ..
Jeeragasamba was taller among the varieties and· had
more number ot tillers, higher LAI and dry matter. A linear
increase in all these characters was recorded upto the bigbest
level (i20 kg/ba) .of n1ilrogen application. Applied nitrogen
increased the crop growth rate which was rapid during the
period between panicle initiation and flowering. variety
Basmathi 217 was characterised by higher NAR.
NUmber ot productive tillers, panicle length, tilled
grains per panicle and sterility percenta~e were higher in
Jeeragaaamba while, the test weight was ver.r low because ot
the medium slendeT grains. aasmathi 217 an~ IE~ 8580 had .
mng slender grains and their test W$ight was bigh. Nitro~en
application increased the number of productive tillers and
panicle length. Filled grains and test. weight were not
influenced by nitrogen application while, it enhanced the
sterility percentage.
In case of Jeeragasamba the grain yield was higher
with 90 kg N/bn which was comparable with 60 kg N/ba and .
the economic optimum dose was found to be 66 kg N/ha. Grain
yields of nasmathi 217 and lET 8580 increased asymptotically
upto 120 kg N/ba. Am•ng tbe varieties, straw yield was
more id Jeeragasamba and it increased significantly with
increase in nitrogen level upto 120 kg/ha resulting in lower
harvest index and grain to straw ratio.
The nitrogen and protein content were more in Basmatbi 217
and increased significantly with the addition ot nitrogen.
Uptake of nitrogen,phospborous and potassium were higher in
Jeeragasamba. ()tltivation of Jeeragasamba appeared to be
promising unde-r low level of nitrogen application (60-70 kg/ba).
The net returns with aaamathi 217 increased linearly with
increase in nitrogen dose and this variety was very much ·
p.referred over Jeeragasamba and IET 8580 based on the &J:'O~a,
taste and appearance. ·
 
Date 2016-08-06T10:58:24Z
2016-08-06T10:58:24Z
1988
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/71187
 
Language en
 
Relation D3079;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD