Vertical Progression and Spread of Phytophthora Leaf Infection in Black Pepper in Areca-Black Pepper Mixed Cropping System
DSpice at Indian Institute of Spices Research
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Creator |
RAMACHANDRAN, N
SARMA, Y R ANANDARAJ, M |
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Date |
2002-07-17T10:45:20Z
2002-07-17T10:45:20Z 1990 |
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Identifier |
Indian phytopath. Vol.43(3) : 414-419 (1990)
http://hdl.handle.net/123456789/169 |
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Description |
Vertical progression and lateral spread of foliar infections caused by 'phytophthora palmivora' MF4 in black pepper, Piper nigrum L., vis-a-vis the role of rain splash were studied in a pepper garden mix-cropped with arecanut (Areca catechu L.). Infections first appeared on the tender leaves and terminal portions of runner shoots creeping on the ground indicating that soil was the primary source of inoculum. The infection gradually spreads upwards in a step - wise manner and also across the adjacent vines. In a few vines, the infection was recorded even at heights over 9 m. The splash water collected at 1,2 and 3m away from the infected vines and at heights of 0,0.5 and 1 m contained 'p. palmivora' MF4 (P. capsici). This confirmed the spread of the pathogen through rain splashes.
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Format |
323237 bytes
application/pdf |
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Language |
en
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Publisher |
Indian Phytopathological Society
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Subject |
'Phytophthora palmivora' MF (P. capsici)
Black pepper Mixed cropping Progression and spread |
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Title |
Vertical Progression and Spread of Phytophthora Leaf Infection in Black Pepper in Areca-Black Pepper Mixed Cropping System
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Type |
Article
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