Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. OF WHEATSCAB. FIG. 83. WHEAT KERNELS AFFECT-ED BY SCAB. ers into the main axis ofthe head on which the kernel and inclosing chaff areborne. The functions of this part of the plant soonbecome locally deranged, and, in consequence, the sup-ply of nutriment for the portion of the head above the 200 FUJfGI AND FUNGICIDES affected part is cut off, causing it to stop growing andlose its green color. As the fungus develops it j^roducesgr
Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . FIG. OF WHEATSCAB. FIG. 83. WHEAT KERNELS AFFECT-ED BY SCAB. ers into the main axis ofthe head on which the kernel and inclosing chaff areborne. The functions of this part of the plant soonbecome locally deranged, and, in consequence, the sup-ply of nutriment for the portion of the head above the 200 FUJfGI AND FUNGICIDES affected part is cut off, causing it to stop growing andlose its green color. As the fungus develops it j^roducesgreat numbers of spores, which give the pinkish color tothe affected ^larts. As a rule, the disease is worse onWTak-growing varieties, and those fields which are sowedlatest. Consequently, vigorous growth and early blos-soming are thought to be the chief safeguards againstthe maladv. The Wheat Rust Puccinia ruhigo-vera Probably no disease of cereals causes a greater lossto American farmers than the rust of wheat. It appearsto be known wherever wheat is grown, and is oftenresponsible for the destruction of a large percentage ofthe crop. It has, until recently, been quite gene
Size: 1745px × 1432px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
