The aim of this study was to determine the effects of
different nitrogen doses on yield and charcoal rot (Macrophomina
phaseolina) disease of some sesame varieties. In the study; Muganlı, Özberk
and a local sesame varieties were used. The experiment was laid out in
Randomized Complete Block in Split Plot Design with three replications in the
field which was artificially inoculated by pathogen (M. phaseolina). The
experiment area was inoculated as 25
g inoculum per m2 by fungus artificially,
which was grown on wheat growth media before sowing the seeds so that the
disease will be appear abundance and severity.
Ammonium Nitrate (33 % N) was used as nitrogen source
with four different doses as 0, 5, 10 and 15 kg/da, half of that fertilizer was
given to the soil during sowing time and the other was given at the beginning
of blooming time. Also, Triple Super Phosphate fertilizer was used in all the
plots with a dose of 10 kg/da at the sowing period. Sesame seeds were sown in June
2, 2010. Cultural practices were applied throughout the growing season. In the study, plant height, number of branches, number
of capsules, disease percentage and seed yield were
determined.
According to the results; there were significant differences among
varieties in seed yield, plant height, number of branch, number of capsules and
disease percentage. Seed yield ranged from 24.83 kg/da to 69.33 kg/da and local
variety had the highest seed yield. It was found significant differences among
varieties on disease percentage and local variety was higher resistant the
other varieties. Different nitrogen doses influenced plant height, number of
branch and number of capsules significantly. However, nitrogen application did
not affect significantly seed yield and disease percentage.
Journal Section | Articles |
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Authors | |
Publication Date | May 28, 2014 |
Published in Issue | Year 2012 Volume: 41 Issue: 1-2-3 |