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Effect of plant growth regulators on growth and yield characters of sesamum

KrishiKosh

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Title Effect of plant growth regulators on growth and yield characters of sesamum
 
Creator Behera, Srikrushna
 
Contributor Hota, B
 
Subject growth regulators such as NAA, GA & I AA, sesame varieties viz. Uma, Amrit, Smarak, Prachi & Nirmala, seed germination, yield
 
Description The present experiment was conducted in the Central
farm OUAT during Rabi season
2014-15 with five sesame varieties viz. Uma, Amrit,
Smarak, Prachi & Nirmala to study the
efficiency of growth regulators such as NAA, GA & I
AA in two Conc. (10 ppm & 20 ppm )
sprayed at 30 & 45 DAS. The experiment was laid out
in split-plot design with three
replications. The morpho - physiological and bio-ch
emical observations were recorded at
different stages of growth of all the varieties due
to effect of growth regulators.
Significant increase was observed in response to gr
owth regulator on germination of
seeds and the highest percentage of seed germinatio
n was recorded in GA
3
20 ppm. Due to
spraying of growth regulators there was increase of
plant height, number of branches & leaf
area per plant in all the treatments irrespective o
f varieties and the highest value was exhibited
by Nirmala as regards to above characters. The chlo
rophyll content both chlorophyll-a,
chlorophyll-b and total chlorophyll increased due t
o spraying growth regulators over the
control. The LAI, RGR, NAR, CGR & LAD were found to
be increased in PGRs treatments
over the control. Among the varieties Nirmala exhib
ited highest value followed by Amrit. The
yield attributing characters such as total dry matt
er, number of capules/ plant, number of
seeds per capsules and 1000 seed weight were signif
icantly increased among the treatments as
well as varieties. Due to the spraying of Plant gro
wth regulators the percentage of increase in
yield ranged from to a tune of 0.5 % in GA 10 ppm c
onc. to 24 % in GA 20 ppm conc. over
the control. Among the varieties highest yield was
noted in Nirmala (5.60 q/ha) followed by
Amrit (5.08 q/ha).
In view of the present findings Nirmala was found t
o be highest yielder and higher
concentration of Plant growth regulators were foun
d to be more significant over the control
 
Date 2017-01-03T12:26:41Z
2017-01-03T12:26:41Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94128
 
Language en
 
Relation Th;4440
 
Format application/pdf