Effects of climatic stress on the severity of date palm fruits pests and diseases damages

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LATIFIAN MASOUD

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Journal: Iranian Journal of Plant Protection Science Year:2020 | Volume:51 | Issue:1 Page(s): 39-53

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Title

Effects of climatic stress on the severity of date palm fruits pests and diseases damages

Author(s)

LATIFIAN MASOUD | Issue Writer Certificate

Keywords

Date palmQ2

damage causing factorsQ1

weather stressQ1

Abstract

Fruits dropping, the lesser moth (Batrachedra amydraula Meyrick), spider mite (Oligonychus afrasiaticus McGregor), Date bunch fading, and Date palm inflorescence rot diseases (Mauginiella scaettae Cavara) are important injurious factors of the Date palm. This research was carried out in the Abadan region from 2005 to 2014 to study the effects of temperature and humidity stresses on injury severity and simulation of Date palm damages prediction model. Four different Date palm orchards from four villages were selected and sampled monthly for the percentage of the date fruit damage until harvest. Climatic data were obtained from the Abadan meteorology station. Multivariate regression, thermal, and humidity models were used to design the system. Results showed that fruits dropping, the lesser moth, spider mite, Date bunch fading, and Khamedje diseases damages reached maximum at the months of April, June, July, September, and April, which coincided with the phenological stage of the Hababok, Kimri, Khark, turning Khark into Rotab, and Hababok, respectively. The damage of these factors started at temperature 21. 4, 21, 26. 7, 30. 2, and 21. 4 oC and relative humidity 14. 7, 20, 14. 7, 21. 3, and 27. 9 gradually increased to 40. 9, 36, 50, 50, and 37. 6 ° C, respectively. Forecasting model of damage factors has been significant at levels of 1, 5, 5, 5, and 5 percent, respectively. All of the forecasting models had a coefficient higher than 0. 7 and the detection error less than 25 percent. Among the meteorological indices, relative humidity and rainfall had the most influence on the variations in the severities of damages.

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APA: Copy

LATIFIAN, MASOUD. (2020). Effects of climatic stress on the severity of date palm fruits pests and diseases damages. IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 51(1 ), 39-53. SID. https://sid.ir/paper/369512/en

Vancouver: Copy

LATIFIAN MASOUD. Effects of climatic stress on the severity of date palm fruits pests and diseases damages. IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2020;51(1 ):39-53. Available from: https://sid.ir/paper/369512/en

IEEE: Copy

MASOUD LATIFIAN, “Effects of climatic stress on the severity of date palm fruits pests and diseases damages,” IRANIAN JOURNAL OF PLANT PROTECTION SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 51, no. 1 , pp. 39–53, 2020, [Online]. Available: https://sid.ir/paper/369512/en

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