Genetic Variability correlation and path Analysis in Finger Millet (Eleusine coracana (L.)]
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Date
2013-04
Journal Title
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Plant Breeding and Genetics Department, N. M. College of Agriculture Gujarat Agriculture University Navsari
Abstract
Genetic variability, correlation coefficient and path
analysis were studied in a set of 35 genotypes of Finge.r millet
IE/tIIsine coracalla (L.) 1 grown in a Randomized Block Design with
three replications during the Kharif season 2011 at Hill millet
Research Station, Waghai (Dangs), N. M. College of Agriculture,
Navsari Agricultural University, Navsari.
Analysis of • vanance revealed significant • genotypIc
differences for all the traits except 1000 seed weight indicating wide
range of variation was apparent in the experimental material.
The genotypic as well as phenotypic variances were high
for days to 50 per cent flowering, days to maturity, plant height and
straw yield where medium for total fingers per plant and grain yield
and low for number of tillers per plant, number of productive tillers
per plant, fingers per main ear, ear head length and test weight.
From the variability study, it could be concluded that phenotypicselection would be effective for days to 50 per cent flowering, days
to maturity, plant height and straw yield.
Association analysis between grain yield per plant and
other ten characters revealed that grain yield per plant showe'd highly
significant and positive correlation with straw yield, days to 50 per
cent flowering, ear head length and fingers per main ear. Grain yield
per plant showed significant and positive correlation with days to
maturity, total fingers per plant and fingers per main car. Negative
correlation was observed between grain yield per plant and number
of tillers per plant and number of productive tillers per plant.
Path coefficient analysis revealed that, the number of
tiller per plant showed that the highest direct effects on grain yield
followed by total fingers per plant, days to 50 per cent flowering and
straw yield showed moderate to low direct effects. Number of
• productive tillers per plant exhibited high negative direct effects,
while fingers per main ear, test weight, plant height, ear head length
and Jays to maturity showed negative direct effects.
Result of grain nutrients composition revealed that, wide
range for carbohydrate, oil, iron and zinc content, while low range
for protein, fiber, total mineral compound, calcium, potassium,
phosphorus and magnesium.
From the result of blast disease appearance, genotypes
WN-8, WN 11, BR-6 and GN-3 reccirdeJ lowest incidence of finger
blast (0%), whereas genotypes GPU-28, GPU-67, YR-708, MR-6,
\'\'N -498, DM-7, G E-406 and G N-l recorded lowest incidence of
•
neck blast (0%), genotypes viz., GPU-48, GPU-67, RAU-8, YR 708,
WN-498, TNAU-I022, DM-7, PPP-2885, OEB-530, WN-8, WN-9,WN-ll, GPU-80, GN-4 and GN-S recorded lowest incidence of leaf
blast (0).
In the prescnt investigation, WN-9, GE-20S, GE-942,
GPU-66, MR-6 and GN-3 found promising genotypes in south
G uiarat condition as they recorded higher seed yield . These
genotypes could be further evaluated for isolating high yicl4ing and
early maturing genotypes,
On the basis of these findings, it can be concluded that
for improving grain yield per plant of finger millet consideration
should be given to the characters namely days to 50 per cent
flowering, number of Productive tillers per plant, Number of Finger
per main ear and Ear head length.
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Citation
CHAUDHARI DHAVALKUMAR RAGHJIBHAI_57837