pärast. Enne kevadist mahapanekut kasutada puhtimist. 11 2.6 Kartuli – süvikkärn (Spongospora subterranea) Kartuli-süvikkärn kuulub suuremate kahjustajate sekka kartulikasvatuses. Positiivne on,et kahjustusi saab vähendada juba kasvuajal. Selleks tuleks vältida üleniisutamist, mis on üheks haiguse põhilisemaks põhjustajaks. Niisutamisega tagatakse kartuli parem säilivus. (Resistance to Powdery Scab in Potato, C.R.Brown) Kartuli- süvikkärna iseloomustavad kartulimugulal olevad tumedamad kärnad (Joonis 7). Joonis 7.Kartuli – süvikkärn (A potatoe tuber) Antud haigus levib nakatunud mugulate ja mulla kaudu. Nakatumisele annab hoogu juurde suur mullaniiskus, madalad temperatuurid ja mulla
· Secretory processes are thought to help in defense response in plant-pathogen interaction. Site- specific, localized increase of an antimicrobial secondary metabolite (phytoalexin) was found in the apoplast of S. bicolor in response to the fungal pathogen · Colletotrichum graminicola. The accumulation of phytoalexin starts with the occurrence of spherical cytoplasmic inclusions of about 1 m in diameter that merge to form a large entity of ~ 20 m diameter. · Similarly, during barley-powdery mildew interaction the deposition of H2O2 containing vacuole struc tures were observed. · Ultrastructural analysis showed that these vesicle-like bodies consist of a broad range of cellular structures that includes miniature cell wall appositions, para-mural bodies, and multivesicular bodies. · This condition reflects the specialized transport of different antimicrobial proteins, regulatory polypeptides, cell wall components, and other defense-related cargo.
Table 3: Major sunflower diseases and symptoms. Downy mildew Cottony fungus on underside of leaves. Dwarfing, Plasmopara halstedi contrasting discoloration of yellow-green and green. Blackening and sometimes swelling at base of stem. Disease most severe when rain occurs before and after emergence. Powdery mildew Cottony fungus on green leaves late in summer - not largely Erysiphe cichoracearum damaging. Leaf spot Dead blotches on flower leaves before heading. Has not Septoria helianthi caused appreciable loss. Verticillium wilt Before heading, dead areas along leaf veins, bordered by Sclerotinia sclerotiorum light yellow-green margins. Decayed vascular tissue in cross-section of stem.
be more apparent on light coloured upholstery) bodywork has taken place, the first task is to paste. use a little liquid detergent and a soft nail brush pull the dent out, until the affected bodywork Wire brush the affected area to remove the to scour the grime out of the grain of the almost attains its original shape. There is little powdery rust from the surface of the material. Do not forget to keep the headlining point in trying to restore the original shape remaining metal. Paint the affected area with clean in the same way as the upholstery. When completely, as the metal in the damaged area rust inhibiting paint; if the back of the rusted using liquid cleaners inside the vehicle do not will have stretched on impact and cannot be area is accessible treat this also.
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