root rot

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root rot

[′rüt ‚rät]
(plant pathology)
Any of various plant diseases characterized by decay of the roots.
References in periodicals archive ?
Breeding for resistance to root rot in red clover, p.
The crown and root rot or wilt of birdsfoot trefoil is complex, and resistant cultivars are not available.
parasitica Dastur) are commonly associated with root rot of citrus (Booth, 1971; Timmer &Menge, 1988).
Many scientists had recorded the relationship between the presence of the citrus nematode and the increase in root rot disease on citrus rootstocks (Van Gundy and Tsao, 1963; O'Bannon et al., 1967, Labuschagne et al., 1989, Combrink et al., 1996; El- Mohamedy et al., 2005).
Key words: Fusarium, Root rot, Phaseolus vulgaris, Host Range.
Integrated management strategies of bean root rot with Bacillus subtilis and Rhizobium in Minnesota.
Field trial evaluations conducted in Eastern Washington revealed shifts in grain yield rankings among spring wheat and spring barley cultivars under severe pressure from Rhizoctonia root rot, depending on location and management system, suggesting that different levels of avoidance, escape, recovery from, or tolerance to Rhizoctonia root rot may exist among spring cereal cultivars (Kidwell et al., 1998).
The objectives of this study were to (i) determine whether current spring wheat cultivars and advanced experimental breeding genotypes vary in levels of susceptibility to Rhizoctonia root rot in inoculated field trials; and (ii) evaluate whether disease ratings obtained in growth chamber evaluations are predictive of, and consistent with, disease ratings in the field.
Improvement of root rot resistance, especially in large-seeded and snap bean types, has been limited, in spite of considerable research efforts to elucidate the genetic control of resistance in bean to FSP.
While the control of environmental variation through replicated field trials is important for analyzing resistance to root rot, the actual scoring method is equally significant.
The objectives of this study were to (i) use IBL populations to introgress Fusarium root rot resistance into the large-seeded Andean kidney and cranberry beans using a small-seeded black bean from the Middle American gene pool as the source of resistance; and (ii) identify significant QTL-marker associations which could be used to facilitate indirect selection for Fusarium root rot resistance in common bean.
& Magnus) Lams.-Scrib.], but is highly susceptible to Michigan isolates of root rot caused by F.