Fungous Diseases of Plants : With Chapters On Physiology, Culture Methods And Technique
The book Fungous Diseases of Plants : With Chapters On Physiology, Culture Methods And Technique was written by author Benjamin M Benjamin Minge Duggar Here you can read free online of Fungous Diseases of Plants : With Chapters On Physiology, Culture Methods And Technique book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Fungous Diseases of Plants : With Chapters On Physiology, Culture Methods And Technique a good or bad book?
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Symptoms. The fungus attacks leaves and stems. Upon young plants the older leaves are first affected and later the younger por- tions of the plant. The young leaves become rapidly pale in the 298 FUNGOUS DISEASES OF PLANTS affected areas and then water-soaked, dark and dead. Conspicuous lesions occur at the sheath nodes and upon the stems. When the disease appears at or above the topmost stem node, it is generally most serious. The maturing heads droop or fall to the ground. Leaves affected at ...the tip of the sheath also hang downward. Old leaves may develop spots with ash-colored centers and bright brown borders. The fungus. Conidiophores and conidia of the fungus may be found abundantly upon the affected parts in moist weather. The former emerge from the stomata, generally in clusters of two or three. They are ordinarily simple, fuliginous in color, septate, and they bear in succession several conidia, each from a tip which is for the time terminal. The spores are ovate, two-septate, and measure 24— 29 x 10— 12 /it.
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