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Full Length Research Paper
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Effects of solarization
and vesicular arbuscular mycorrhizal fungus (VAM) on
phytopthora blight (Phytophthora capsici leonian) and
yield in pepper
Ismail Cimen1,
Vedat Pirinc2*, Abuzer Sagır1, Cagdas
Akpinar3 and Sadettin Guzel1
1Dicle
University, Agricultural Faculty, Department of Plant
Protection, 21280, Diyarbakır, Turkey.
2Dicle
University, Agricultural Faculty, Department of
Horticulture, 21280, Diyarbakır, Turkey.
3Çukurova
University, Agricultural Faculty, Department of Soil, 01330,
Adana, Turkey.
*Corresponding author. E-mail:
vedpir@dicle.edu.tr.
Accepted 31 August, 2009 |
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Abstract |
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In this
work, effects of soil solarization and vesicular arbuscular
mycorrhizal (VAM) fungus, Glomus intraradices on
diseases caused by Phytophthora capsici Leonian in
pepper plants and crop yields were studied. At the end of
the growth season, 82.5% mortality of plants and 47.7% of
yield loss caused by P. capsici were obtained in
control plots. At the beginning of the vegetative period,
plant mortality caused by P. capsici in solarized
plots was less than that in non-solarized plots, but it was
higher at the end of the experiments. The total crop yield,
however, increased to 20.9% by solarization. At the
beginning of the growth season,
anthocyanin production,
early flowering and fruit settings were observed in the
seedlings inoculated with VAM. Plant mortality caused by
P. capsici was inhibited by 69.4% in plants inoculated
with VAM fungus, but this rate decreased to 14.9% at the
end of the
experiment. On
the other hand, total yield increased to 40.4% in plots
infested with P. capsici, but treated with VAM. The
total yield increased to 49.9% in pathogen free solarized +
VAM inoculated grown plants plots in comparison to pathogen
free non-solarized + non-VAM inoculated grown plants plots.
This increase was 42.8% in solarized + VAM inoculated grown
plants plots, which were infested with P. capsici.
Total yield was 22.7% in solarized + VAM inoculated grown
plants plots without P. capsici in comparison to non-solarized
plots + non-VAM inoculated grown plants plots but infected
with P. capsici. The yield loss caused by P.
capsici in pepper was decreased by means of long-term
effect of soil solarization with artificially VAM
inoculation.
Key
words:
Soil solarization, vesicular arbuscular mycorrhizal,
Glomus intraradices, Phytophthora capsici, yield,
phytopthora blight, pepper. |
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