concentric rings

Listing 1 - 10 from 45 for concentric rings

Mycology - Growth and Development - Hyphal Elongation
... various forms and functions. Growth in periodic light. Colonies in axenic culture often appear as concentric rings around the inoculum. The surface hypha appear to have stalled, and the renewed surface growth ...
bugs.bio.usyd.edu.au

Bitter Rot of Grape HYG-3032-92
... , and unlike black rot, does not infect green berries. This lesion spreads rapidly (often in concentric rings) and within a short period of time the entire fruit is affected. These infected berries ...
ohioline.osu.edu

Virus Diseases of Greenhouse HYG-3065-96
... hosts such as Gloxinia (Figure 2), Cineraria (Figure 3), or Dahlia (Figure 4), INSV induces concentric rings of almost perfect proportion. In New Guinea impatiens, symptoms may not be seen until the ...
ohioline.osu.edu More from this site

Vegetable Crops Pt1
... leaves, later enlarging to one and one-half inch or more in diameter. Definite concentric rings and margins appear giving the diseased area a "bull's eye" appearance. The fungus ... spots. Watermelon plants have shortened internodes and pronounced upright growth of terminals. On fruits, concentric rings and pimples are scattered over the green rind. Watermelon Mosaic Virus (virus): Vein clearing ...
plantpathology.tamu.edu

Vegetable Crops pt 2
... beginning on the lower part of the plant and developing upward. Spots are characterized by concentric rings which give a target appearance. Plants which are well fertilized and irrigated are not as ...
plantpathology.tamu.edu More from this site

On-Line Glossary: R
... . (2) ringspot. A type of local lesion consisting of single or concentric rings of discoloration or necrosis, the regions between the concentric rings being green. The center of the lesion may be chlorotic or ...
ppathw3.cals.cornell.edu

FPHG -
... fruiting bodies of the fungus--appear in the sunken lesion. These might be arranged in concentric rings. Later, they ooze a gelatinous, salmon-pink mass of spores, which is washed by rains ...
ssfruit.cas.psu.edu

FPHG -
... turns black as it increases in size. As the rotted area increases, a series of concentric rings often forms. The flesh of the decayed area remains firm and leathery. Eventually, the apple ...
ssfruit.cas.psu.edu More from this site

New Disease Reports - First report of Alternaria alternata causing leaf spot on Stevia rebaudiana
... grey, while others remained circular with concentric rings or zones. On severely infected leaves several spots coalesced to form large necrotic areas. On older leaves concentric spots were more common at the tips ...
www.bspp.org.uk

New Disease Reports - First report of Alternaria tenuissima causing leaf spot and fruit rot on eggplant (Solanum melongena) in India
... with concentric rings or zones (Fig. 1). In the later stage of infection, these spots coalesced resulting in withering, extensive drying and shedding of leaves. On fruit, the symptoms started as small concentric ...
www.bspp.org.uk More from this site

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