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Pythium Root Rot/Pythium Root Dysfunction

Pythium Root Rot/Pythium Root Dysfunction

Pythium Root Rot/Pythium Root Dysfunction. caused by. Pythium graminicola, P. torulosum, P. vanterpoolii, P. myriotylum, P. ultimum, P. irregulari, P. rostratum, P. volutum and Several other species. Previously, we covered Pythium Blight, a foliar disease caused

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519 views • 16 slides
Die-back of the Amazon in DGVMs: climate drivers and mechanisms

Die-back of the Amazon in DGVMs: climate drivers and mechanisms

Die-back of the Amazon in DGVMs: climate drivers and mechanisms. David Galbraith, Patrick Meir, Peter Levy, Daniel Metcalfe. What is the best use of Biosphere 2? March 06, 2009. Amazon Die-back Predictions: A Brief History. White and Friend (1999). Cox et al. (2000). Sitch et al. (2008).

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224 views • 14 slides
Plant Characteristics

Plant Characteristics

Plant Characteristics. Boot Camp Sacramento, CA May 15, 2006. Plant Terms. Narrow leaves Parallel veins Can be cool season Can be warm season. Flowers not so showy Can be a bunch Can be a sod-former. Shrubs. Grasses. Plants die back Roots often enlarged

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231 views • 13 slides
Antifungal activities of novel synthetic compounds against Phomopsis azadirachtae- the causative agent of die-back disea

Antifungal activities of novel synthetic compounds against Phomopsis azadirachtae- the causative agent of die-back disea

Seven novel synthetic heterocyclic compounds containing naphthofurans were evaluated for their inhibitory effect on Phomopsis azadirachtae, the causative agent of destructive die-back disease of neem. Twigs of Azadirachta indica (Neem) infected with die-back were collected and were analyzed to determine the pathogen. Phomopsis azadirachtae the causal organism was isolated on malt extract agar from die-back infected neem twigs. They were identified by PCR based molecular methods. Phomopsis genus specific primers (5.8S r-DNA) were then used for the confirmation of P. azadirachtae – the causative agent of die-back of neem by Polymerase chain reaction (PCR). Studies revealed the amplification of expected 141bp DNA in P. azadirachtae isolated from the diseased trees confirming the causal organism of die-back of neem. Studies revealed a very effective in vitro control of P.azadirachtae mycelia growth at very significant concentration.

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94 views • 8 slides
RESIILIENCE OF MANGROVES TO INDIRECT EFFECTS OF CLIMATE CHANGE

RESIILIENCE OF MANGROVES TO INDIRECT EFFECTS OF CLIMATE CHANGE

INTERNATIONAL. SECRETARIAT. Fig. 1. Local fisherman at Mwache setting a fishing trap in the mangroves. Fig. 2. Map of the Kenyan coastline showing the study area, Port Reitz/Mwache Creek. Fig. 3. Mangrove die-back due to massive sedimentation at Mwache Creek.

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107 views • 1 slides

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