scholarly journals Potato late blight disease prediction using meteorological parameters in Northern Himalayas of India

2021 ◽  
Vol 23 (3) ◽  
pp. 310-315
Author(s):  
W. A. DAR ◽  
F. A. PARRY ◽  
B. A. BHAT
Keyword(s):  
Wind Speed ◽  
Relative Humidity ◽  
Late Blight ◽  
Weather Conditions ◽  
Potato Late Blight ◽  
Disease Development ◽  
Potato Blight ◽  
Late Blight Disease ◽  
Weather Parameters ◽  
Blight Disease

Weather parameters play an important role in the spread of potato late blight of caused by Phytophthora infestans (Mont.) de Bary has historically been serious disease of potatoes through worldwide, including India. Due to spatial variation in prevailing weather conditions, its severity varies from region to region. Disease development process and the weather parameters are well understood and have been utilized for disease developing forecasting models and decision support system. Therefore, an experiment was conducted for two consecutive cropping seasons (2017 & 2018) to develop a forecasting model against late blight of potato using stepwise regression analysis for Northern Himalayas in India. Maximum and minimum temperature, relative humidity, rainfall and wind speed appeared to be most significant factors in the potato late blight disease development. The meteorological conditions conducive for the development of potato late blight disease were characterized. Maximum and minimum temperatures in the range of 15.0 – 28.0°C and 2.0 – 12.0°C were found favorable for potato blight disease. Similarly, relative humidity, rainfall and wind speed in the range of 85 - 95 per cent, 15.5 - 20.75 mm and 1.0 - 5.5 Km h-1, respectively, were conducive for potato late blight disease which are helpful in disease development.

scholarly journals Severity of potato late blight under different weather conditions in Mymensingh region of Bangladesh

2020 ◽  
Vol 31 (2) ◽  
pp. 74-80
Author(s):  
MS Monjil ◽  
T Ulfat
Keyword(s):  
Relative Humidity ◽  
Late Blight ◽  
Soil Temperature ◽  
Dew Point ◽  
Disease Symptoms ◽  
Percent Relative Humidity ◽  
Late Blight Disease ◽  
Weather Parameters ◽  
Blight Disease ◽  
Late Blight Of Potato

An experiment has been conducted to observed the disease severity of late blight of potato in the different weather parameters viz., air temperature, soil temperature, dew points, percent relative humidity and period of sunshine. The experiment was conducted in the Net-house, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh during July 2016 to November 2017. Weather data were collected on daily basis from BAU weather station during the experimental period. A significant role of weather parameters was detected in disease development and disease progress. Temperature was strongly linked with the late blight infection in potato. From 15 December, 2016 to 12 January, 2017 air temperature was ranged from 21.00-23.50°C and soil temperature was ranged from 19.00-22.00°C, and this range late blight incidence was not detected in the potato plant. From 13-14 January air and soil temperature suddenly decreased 2°C and from next day again increased the temperature as well as starting late blight disease symptoms. It was observed that dew point and percent relative humidity have a big role on late blight disease severity of potato. In 13-14 January, 2017 dew point decreased from 14°C to 8°C and Percent RH decreased from 80% to 51%. From 14 January, 2017, disease symptoms were observed in potato leaves and rapidly increased. Thus, late blight of potato disease may respond to the variation of temperature, dew point and relative humidity. Progressive Agriculture 31 (2): 74-80, 2020

The Assessment of Potato Late Blight Disease in Western Amhara Region, Ethiopia

2021 ◽  
Author(s):  
Gebremariam Asaye Emrie ◽  
Merkuz Abera Admassu ◽  
Adane Tesfaye Lema
Keyword(s):  
Late Blight ◽  
Potato Late Blight ◽  
Amhara Region ◽  
Late Blight Disease ◽  
Blight Disease

Promoting international collaboration for potato late blight disease management

2000 ◽  
Vol 11 (5) ◽  
pp. 181-185 ◽  
Author(s):  
K. V. Raman ◽  
Niklaus J. Grünwald ◽  
William E. Fry
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
International Collaboration ◽  
Potato Late Blight ◽  
Late Blight Disease ◽  
Blight Disease

Light-induced alteration of leaf sterol content and late blight disease development in tomato

1982 ◽  
Vol 60 (12) ◽  
pp. 2724-2728 ◽  
Author(s):  
B. Bradford ◽  
L. D. Moore ◽  
D. M. Orcutt
Keyword(s):  
Light Intensity ◽  
Late Blight ◽  
Disease Incidence ◽  
Total Sterol ◽  
Disease Development ◽  
Low Light ◽  
Light Intensities ◽  
Intensity Changes ◽  
Late Blight Disease ◽  
Blight Disease

‘Nova’ and 'Beefsteak,' cultivars of tomato (Lycopersicon esculentum Mill.), were grown in chambers under light intensities of 240 or 120 μE∙m−2∙s−1. Thirty-five days after seeding, half of the tomato plants were harvested for sterol analysis and the others were inoculated with a tomato race O isolate of Phytophthora infestons (Mont.) de By. Late blight symptoms were assessed 10 days after inoculation from the number of leaves showing disease (disease incidence) and the amount of blighted area of each leaf (percent colonization). Disease incidence and percent colonization were not influenced by light intensity with 'Nova' plants, but 'Beefsteak' plants grown under low light were significantly [Formula: see text] more diseased than those exposed to the higher light intensity. Changes in free sterol, steryl ester, and total sterol concentrations between plants grown under different light intensities were similar for both cultivars. A significant decrease in the steryl glycoside concentration of low light grown 'Beefsteak' plants correlated with increased disease incidence. The possible role of steryl glycosides and their derivatives in late blight disease development is discussed.

Utility of Hyperspectral Data for Potato Late Blight Disease Detection

2011 ◽  
Vol 39 (2) ◽  
pp. 161-169 ◽  
Author(s):  
Shibendu Shankar Ray ◽  
Namrata Jain ◽  
R. K. Arora ◽  
S. Chavan ◽  
Sushma Panigrahy
Keyword(s):  
Late Blight ◽  
Potato Late Blight ◽  
Hyperspectral Data ◽  
Disease Detection ◽  
Late Blight Disease ◽  
Blight Disease

RESEARCH EXPERIENCE ON POTATO LATE BLIGHT DISEASE MANAGEMENT IN BANGLADESH

2009 ◽  
pp. 175-186
Author(s):  
M. Hossain ◽  
T.K. Dey ◽  
M. Iqbal Hossain ◽  
S.N. Begum ◽  
M.S. Kadian
Keyword(s):  
Disease Management ◽  
Late Blight ◽  
Potato Late Blight ◽  
Research Experience ◽  
Late Blight Disease ◽  
Blight Disease
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