TIME OF FUNGICIDE APPLICATION AGAINST POLYSTIGMA AMYGDALINUM IN ALMOND BASED ON ASCOSPORE DISCHARGE IN CHAHAR MAHAL VA BAKHTIARI PROVINCE

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SAHRAGARD N.; ESHAGHI R.; AFLAKI M.R; BANIHASHEMI Z.A.D.

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Paper Information

Journal: IRANIAN JOURNAL OF PLANT PATHOLOGY Year:2007 | Volume:43 | Issue:2 (170) Page(s): 219-239

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Title

TIME OF FUNGICIDE APPLICATION AGAINST POLYSTIGMA AMYGDALINUM IN ALMOND BASED ON ASCOSPORE DISCHARGE IN CHAHAR MAHAL VA BAKHTIARI PROVINCE

Author(s)

SAHRAGARD N. | ESHAGHI R. | AFLAKI M.R | BANIHASHEMI Z.A.D. | Issue Writer Certificate

Keywords

ALMOND RED LEAF BLOTCHQ3

BORDEAUX MIXTUREQ2

CHAHAR MAHAL VA BAKHTIARIQ3

POLYSTIGMA AMYGDALINUMQ2

AND PRUNUS DULCISQ3

Abstract

During 2005-2006 effect of environmental conditions on ascospores discharge of POLYSTIGMA AMYGDALINUM ,the causal agent of almond leaf blotch, and time of spraying to manage the disease was investigated in CHAHAR MAHAL VA BAKHTIARI province. Two infected almond orchards of cultivar Mamaee were selected along Zayande-Rood (Emamea) and Ardal (Rostam-Abad). Ascospore discharge was monitored using slide traps and 2-year-old Mamaee almond seedlings a cultivar susceptible to the pathogen. BORDEAUX MIXTURE at the rate of 1.5% was used at different intervals (twelve treatments) based on phenology of the host (time after petal fall). The results of two years of experiment showed that the earliest disease symptoms appeared as small pale leaf spots five to six weeks after ascospore discharge. Based on the appearance of disease symptoms under natural and greenhouse conditions the incubation period was estimated about to be 40-45 and 35-40 days respectively. The peak of ascospore discharge was 2-3 weeks after petal fall and was dependent on rain fall. Two applications of BORDEAUX MIXTURE at 2 and 4 weeks after petal fall was found to be the most efficient control treatment in both years and both locations. A single spray two weeks after petal fall also reduced the disease significantly.

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APA: Copy

SAHRAGARD, N., ESHAGHI, R., AFLAKI, M.R, & BANIHASHEMI, Z.A.D.. (2007). TIME OF FUNGICIDE APPLICATION AGAINST POLYSTIGMA AMYGDALINUM IN ALMOND BASED ON ASCOSPORE DISCHARGE IN CHAHAR MAHAL VA BAKHTIARI PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY, 43(2 (170)), 219-239. SID. https://sid.ir/paper/48226/en

Vancouver: Copy

SAHRAGARD N., ESHAGHI R., AFLAKI M.R, BANIHASHEMI Z.A.D.. TIME OF FUNGICIDE APPLICATION AGAINST POLYSTIGMA AMYGDALINUM IN ALMOND BASED ON ASCOSPORE DISCHARGE IN CHAHAR MAHAL VA BAKHTIARI PROVINCE. IRANIAN JOURNAL OF PLANT PATHOLOGY[Internet]. 2007;43(2 (170)):219-239. Available from: https://sid.ir/paper/48226/en

IEEE: Copy

N. SAHRAGARD, R. ESHAGHI, M.R AFLAKI, and Z.A.D. BANIHASHEMI, “TIME OF FUNGICIDE APPLICATION AGAINST POLYSTIGMA AMYGDALINUM IN ALMOND BASED ON ASCOSPORE DISCHARGE IN CHAHAR MAHAL VA BAKHTIARI PROVINCE,” IRANIAN JOURNAL OF PLANT PATHOLOGY, vol. 43, no. 2 (170), pp. 219–239, 2007, [Online]. Available: https://sid.ir/paper/48226/en

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