MODELING AND PROGNOSIS OF POTATO EARLY BLIGHT DISEASE USING METEOROLOGICAL VARIABLES AFFECTING THE SPORE POPULATION

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VARSHAVIAN V.; GHAHREMAN N.; JAVAN NIKKHAH M.; LIAGHAT A.; FARHADI B.

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Journal: Journal of Agricultural Meteorology Year:2015 | Volume:2 | Issue:2 Page(s): 16-23

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Title

MODELING AND PROGNOSIS OF POTATO EARLY BLIGHT DISEASE USING METEOROLOGICAL VARIABLES AFFECTING THE SPORE POPULATION

Author(s)

Keywords

ALTERNARIAQ3

KERMANSHAHQ3

EARLY BLIGHTQ2

POTATOQ2

MODELQ2

Abstract

Early blight disease caused by ALTERNARIA solani spreads well in abundance of humidity and the presence of water on the leaves. The early symptoms of disease are brown to black spots as concentric embowed rings. The fungal spores are distributed by wind and rain to healthy leaves. High humidity and temperatures between 18 and 25oC, dew, rain and sprinkler irrigation increase its spread. The purpose of this study was to study the influence of meteorological variables (Temperature, Relative humidity and Precipitation) on spores’ population of EARLY BLIGHT pathogen of POTATO and possible prognosis of disease in KERMANSHAH province during 2013-2014 crop seasons. To perform the study, POTATO plants were cultivated in Razi University farm and the symptoms of the disease were monitored continuously through the season. Besides, the number of fungi spores were also measured using a standard spore trap. On the other hand, two EARLY BLIGHT prognosis empirical MODELs were developed using on-site meteorological data and those obtained from nearby synoptic station. The correlation between the population of spores in the air and meteorological variables were worked out. The results showed that there exist a significant relation between the spore population and maximum-minimum air temperature (p=0.01) and relative humidity (p=0.05). According to results of this study, the proposed MODEL can be satisfactorily used for EARLY BLIGHT early warning in western region of Iran.

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APA: Copy

VARSHAVIAN, V., GHAHREMAN, N., JAVAN NIKKHAH, M., LIAGHAT, A., & FARHADI, B.. (2015). MODELING AND PROGNOSIS OF POTATO EARLY BLIGHT DISEASE USING METEOROLOGICAL VARIABLES AFFECTING THE SPORE POPULATION. JOURNAL OF AGRICULTURAL METEOROLOGY, 2(2), 16-23. SID. https://sid.ir/paper/249957/en

Vancouver: Copy

VARSHAVIAN V., GHAHREMAN N., JAVAN NIKKHAH M., LIAGHAT A., FARHADI B.. MODELING AND PROGNOSIS OF POTATO EARLY BLIGHT DISEASE USING METEOROLOGICAL VARIABLES AFFECTING THE SPORE POPULATION. JOURNAL OF AGRICULTURAL METEOROLOGY[Internet]. 2015;2(2):16-23. Available from: https://sid.ir/paper/249957/en

IEEE: Copy

V. VARSHAVIAN, N. GHAHREMAN, M. JAVAN NIKKHAH, A. LIAGHAT, and B. FARHADI, “MODELING AND PROGNOSIS OF POTATO EARLY BLIGHT DISEASE USING METEOROLOGICAL VARIABLES AFFECTING THE SPORE POPULATION,” JOURNAL OF AGRICULTURAL METEOROLOGY, vol. 2, no. 2, pp. 16–23, 2015, [Online]. Available: https://sid.ir/paper/249957/en

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