A SURVEY ON SPECIES OF PYTHIACEAE, THE CAUSAL AGENTS OF PINK ROT & LEAK OF POTATO IN SEMNAN PROVINCE AND INTRODUCTION OF POTATO AS NEW HOST FOR P. MEGASPERMA AND P. ULTIMUM IN IRAN

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ZAKER M.

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Journal: AGRICULTURAL RESEARCH Year:2008 | Volume:7 | Issue:4 (A) Page(s): 247-255

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Title

A SURVEY ON SPECIES OF PYTHIACEAE, THE CAUSAL AGENTS OF PINK ROT & LEAK OF POTATO IN SEMNAN PROVINCE AND INTRODUCTION OF POTATO AS NEW HOST FOR P. MEGASPERMA AND P. ULTIMUM IN IRAN

Author(s)

ZAKER M. | Issue Writer Certificate

Keywords

POTATOQ3

PINK ROTQ3

PYTHIUM LEAKQ3

PYTHIUM ULTIMUMQ3

PHYTOPHTHORA SPPQ3

Abstract

Pink rot and PYTHIUM LEAK or watery rot of POTATO mainly caused by P. erythroseptica and P. ultimum are two important diseases occurring in several countries. Although other species of Phytophthora may also be the causal agent pf PINK ROT of POTATO tubers. These two diseases were recently observed in some POTATO growing areas of Semnan province. These are more prevelant in fields with heavy soils and poor drainage. Their secondary development takes place in stores with poor storage facilities. During 2002-2003 in a survey for identification of Pythiaceous species, the causal agents of PINK ROT and PYTHIUM LEAK of POTATO tubers in Semnan province of northern Iran, Phytophthora megasperma and PYTHIUM ULTIMUM were found to be new records from POTATO tubers for Iran. In this survey 40 POTATO fields and related stores were inspected for detection of both diseases. Using BNPRA selective medium without hymixazole, 49 isolates belonging to pythiaceae were isolated from disease speciments of some fields and stores. Results showed that 34.70% were Pythium (all having the characteristics of P. ultimum) and 65.30% were Phytophthora (majority belonging to P.cryptogea and remaining being P.erythroseptica and P.megasperma). Majority of Pythium isolates were seprated from stored POTATO tubers while Phytophthora isolates were mainly found on diseased tubers collected at harvesting time. Review of literature indicates that the two species P.megasperma and P.ultimum have not yet been reported from diseased POTATO tubers in Iran and seem to be new causal agents of PINK ROT and POTATO leak for Iran.

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APA: Copy

ZAKER, M.. (2008). A SURVEY ON SPECIES OF PYTHIACEAE, THE CAUSAL AGENTS OF PINK ROT & LEAK OF POTATO IN SEMNAN PROVINCE AND INTRODUCTION OF POTATO AS NEW HOST FOR P. MEGASPERMA AND P. ULTIMUM IN IRAN. AGRICULTURAL RESEARCH, 7(4 (A)), 247-255. SID. https://sid.ir/paper/84690/en

Vancouver: Copy

ZAKER M.. A SURVEY ON SPECIES OF PYTHIACEAE, THE CAUSAL AGENTS OF PINK ROT & LEAK OF POTATO IN SEMNAN PROVINCE AND INTRODUCTION OF POTATO AS NEW HOST FOR P. MEGASPERMA AND P. ULTIMUM IN IRAN. AGRICULTURAL RESEARCH[Internet]. 2008;7(4 (A)):247-255. Available from: https://sid.ir/paper/84690/en

IEEE: Copy

M. ZAKER, “A SURVEY ON SPECIES OF PYTHIACEAE, THE CAUSAL AGENTS OF PINK ROT & LEAK OF POTATO IN SEMNAN PROVINCE AND INTRODUCTION OF POTATO AS NEW HOST FOR P. MEGASPERMA AND P. ULTIMUM IN IRAN,” AGRICULTURAL RESEARCH, vol. 7, no. 4 (A), pp. 247–255, 2008, [Online]. Available: https://sid.ir/paper/84690/en

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