Development of growth model for Ber powdery mildew in relation to weather parameters

2019 ◽  
Vol 72 (2) ◽  
pp. 235-241
Author(s):  
Rajender Singh ◽  
Manoj Kumar ◽  
Dahiya Mamta ◽  
Satpal Baloda
Keyword(s):  
Powdery Mildew ◽  
Growth Model ◽  
Weather Parameters

Effect of weather parameters on powdery mildew development of wheat at different location in Himachal Pradesh

2018 ◽  
Vol 71 (3) ◽  
pp. 349-353 ◽  
Author(s):  
Amritpal Mehta ◽  
Ashwani Kumar Basandrai ◽  
D. K. Banyal ◽  
Daisy Basandrai
Keyword(s):  
Powdery Mildew ◽  
Himachal Pradesh ◽  
Weather Parameters

scholarly journals Weather Impact on Nursery Diseases of Mango Saplings in Bangladesh

2015 ◽  
Vol 3 (1) ◽  
pp. 42-49
Author(s):  
M. A. H. Khan ◽  
I. Hossain ◽  
M. S. M. Chowdhury ◽  
M. U. Ahmad
Keyword(s):  
Relative Humidity ◽  
Powdery Mildew ◽  
Leaf Spot ◽  
Climatic Factor ◽  
Bacterial Leaf Blight ◽  
Weather Impact ◽  
Weather Parameters ◽  
The Relationship ◽  
Geographical Locations ◽  
Seedling Diseases

The study was carried out during the period of July 2010 to April 2012 to find out the effect of weather prevalence of seedling diseases ofmango in different areas of Bangladesh. The locations were Mymensingh Dinajpur, Rajshahi and Khagrachari. Altogether 12 nurseries in fourdistricts of Bangladesh were surveyed and mango seedling diseases were recorded. Incidence and severity of important seedling diseases ofhas been studied under different geographical locations (viz. Mymensingh, Dinajpur, Rajshahi and Khagrachari) of Bangladesh. The effects oftemperature, rainfall, and relative humidity on the incidence and severity of noted diseases were observed the aforesaid locations of Bangladesh.The studied diseases were anthracnose, leaf spot, red rust, powdery mildew, scab, bacterial leaf blight and malformation of mango seedlings.The graphs of weather parameters and incidence and severity of diseases were performed to determine the relationship between differentcomponents of climatic factor and seedling diseases of mango.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.11846   Int J Appl Sci Biotechnol, Vol. 3(1): 42-49 

Microscopy studies of powdery mildew on summer squash

1991 ◽  
Vol 49 ◽  
pp. 520-521
Author(s):  
John S. Gardner ◽  
W. M. Hess
Keyword(s):  
Powdery Mildew ◽  
Tip Growth ◽  
Hyphal Growth ◽  
Plant Tissues ◽  
Vegetative Hypha ◽  
Powdery Mildews ◽  
Summer Squash ◽  
Conidial Formation ◽  
Polar Tip Growth ◽  
Short Conidiophore

Powdery mildews are characterized by the appearance of spots or patches of a white to grayish, powdery, mildewy growth on plant tissues, entire leaves or other organs. Ervsiphe cichoracearum, the powdery mildew of cucurbits is among the most serious parasites, and the most common. The conidia are formed similar to the process described for Ervsiphe graminis by Cole and Samson. Theconidial chains mature basipetally from a short, conidiophore mother-cell at the base of the fertile hypha which arises holoblastically from the conidiophore. During early development it probably elongates by polar-tip growth like a vegetative hypha. A septum forms just above the conidiophore apex. Additional septa develop in acropetal succession. However, the conidia of E. cichoracearum are more doliform than condia from E. graminis. The purpose of these investigations was to use scanning electron microscopy (SEM) to demonstrate the nature of hyphal growth and conidial formation of E. cichoracearum on field-grown squash leaves.

Chromosomal location of genes for resistance to powdery mildew in Chinese wheat lines Jieyan 94-1-1 and Siyan 94-1-2

Hereditas ◽  
2002 ◽  
Vol 136 (3) ◽  
pp. 212-218 ◽  
Author(s):  
XIU QIANG HUANG ◽  
SAI L. K. HSAM ◽  
FRIEDRICH J. ZELLER
Keyword(s):  
Powdery Mildew ◽  
Chromosomal Location ◽  
Wheat Lines ◽  
Chinese Wheat
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