Vivek GuptaCCS Haryana Agricultural UniversityHisar-125001, Haryana, IndiaEmail: email@example.com
Host: Triticum aestivum L. (wheat)Disease name: Powdery mildew Pathogen name: Blumeria graminis (DC.) E.O. Speer f. sp. tritici Em. Marchal (syn. Erysiphe graminis DC. f. sp. tritici Em. Marchal)
Small, white pustules appear on the upper leaf surface; very rarely pustules are seen on the underside. The pustules form a cottony growth of fungal mycelium containing asexual conidia (oidia) often surrounded by cholorosis (prominent on the underside). As the infection progresses, the pustules coalesce and cover the whole leaf lamina. As the leaf matures, dark, roundish chasmothecia (cleistothecia) develop into a fungal mass. Ascospores develop in the chasmothecia and serve as long-term survival structures of the fungus.
Picture your photograph as the APSnet Featured ImageClick here to find out more
License to Copy. This notice hereby grants permission to APSnet users to copy the image featured for noncommercial, personal use. All components of APSnet are copyrighted and may not be reproduced or distributed except by express permission of APS. Copyright is not claimed for material provided by United States government employees as part of their work. APSnet copyright extends to images, text, graphics, photographs, illustrations, audio, video, computer software, and all other elements of the site.Instructions to Copy. For PC, position your mouse cursor on the featured image, click the right mouse button, and choose "Save Picture As..." or "Save this Image as..." whichever is the case. For Mac, click the only mouse button and follow the same steps. Users may want to set up a specific directory and file naming scheme for storing images; otherwise, they will be saved using your system defaults. Images may be used in any software application that supports JPEG file format or viewed in an Internet browser as local files.