stem canker


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stem canker

[′stem ‚kaŋ·kər]
(plant pathology)
Any canker disease affecting the stem.
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Keywords: Rhizoctonia solani, Potato, Stem canker, Black scurf, animal manures.
As been shown in Table (1), all applied treatments of Trichoderma and different concentration of salicylic acid either separately or in combination treatment protected tomato plants against stem canker disease caused by B.
harzianum at the time of sowing followed by two(T3) and three(T4) dosages at 20 days intervals gave significant protection against soil-borne inoculum of the fungus and significantly less inhibition in eyes germination, reduction in sprouts killing, stem canker index, stolon canker index and black scurf disease index were observed, which ultimately contributed to better crop stand and increased yield as compared to inoculated control and rest of the treatments (Table 1).
Freedom is resistant to southern stem canker, Soybean mosaic virus (Paris, 2000), and race 10 of Phytophthora rot [caused by Phytophthora sojae (Kaufmann & Gerdemann)] (White et al.
Although stem canker infects plants early in the growing season, symptoms--brown lesions on the stems--appear much later," says Tyler, who is also in the Stoneville unit.
In almost every case, varieties doing noticeably better this season are those with the best stem canker resistance.
N54 and N55 are biennial lines that are homozygous for susceptibility and resistance, respectively, to stem canker (gooseneck) disease [caused by Ascochyta caulicola (Laub.
He said: "While the cold weather may delay the progression of the disease, shocking levels of phoma [canker] in susceptible varieties will also need careful management if stem canker is not to compromise their yield and standing ability.
S99-3181 is susceptible to stem canker [caused by Diaporthe phaseolorum (Cooke and Ellis) Sacc.
NKBravour demonstrates several other performance advantages; a rating of seven for stem stiffness at harvest, an eight for resistance to lodging at flowering and a seven for shortness of stem, allow for flexibility in the approach to canopy management and an easier harvest; and a broad spectrum disease resistance, in particular for stem canker with a rating
Hara), stem canker [caused by Diaporthe phaseolorum (Cook & Ellis) Sacc.