halo blight


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halo blight

[′hā·lō ‚blīt]
(plant pathology)
A bacterial blight of beans and sometimes other legumes caused by Pseudomonas phaseolicola and characterized by water-soaked lesions surrounded by a yellow ring on the leaves, stems, and pods.
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References in periodicals archive ?
Halo blight was a major issue for mungbean growers in southern Queensland in 2015 and 2016, due to the cooler, wet start to the growing seasons.
Only one halo blight infected seed per 10,000 is enough to produce an epidemic under the right environmental conditions.
To minimise the risk of halo blight and tan spot, the recommendations are to use low risk planting seed, plant varieties with higher levels of resistance, clean harvesting equipment, control weeds and volunteers, and use suitable crop rotations, she said.
The pedigree method of selection was used to introgress resistance to BCMV and halo blight from great northern 'Jules' into local landraces with some success (Asensio et al., 1993).
Great northern Harris has low level of resistance to halo blight and an indeterminate prostrate growth habit Type III.
Abbreviations: ALP, abaxial leaf pubescence; APR, adult plant resistance; BCMV, Beancommon mosaic virus; BSA, bulked segregant analysis; CBB, common bacterial blight; cM, centimorgan; FW, Fusarium wilt; GGW, golden gate wax; GN, great northern; HB, halo blight; LG, linkage group; MA, Middle American; QTL, quantitative trait locus (loci); RAPD, random amplified polymorphic DNA; RIL, recombinant inbred line; SR, specific resistance.
The RAPD marker, O[12.sub.900] on LG 2 associated with QTL for seedling stem and field reactions estimated by two methods also explained 11% of the phenotypic variation of halo blight reactions to strain 83-Sc2A (Ariyarathne et al., 1999).
Halo blight and bacterial brown spot of bean in Wisconsin in 1964.
The closest resistance locus is a QTL for halo blight (HB 16) located [approximatley equals] 7 cM away on LG 10 (Ariyarathne et al., 1999).
Aurora is a small white cultivar released by Cornell University and is resistant to CTV, has I gene resistance to BCMV, and has some resistance to halo blight [caused by Pseudomonas syringae pv.
& Magnus) Lams.-Scrib.] and halo blight [caused by Pseudomonas syringae pv.
Negro Otomi is resistant to highland isolates of halo blight [caused by Pseudomonas syringae pv.