Development of a charcoal rot rating index for multilocation trials of sorghum

Sources of Resistance for Charcoal Rot of Sorghum Caused by Macrophomina phaseolina (Tassi) Goid

“…Observations on charcoal rot incidence, mean length of spread (cm), mean number of nodes crossed and charcoal rot index (CRI) were recorded for screening purpose. Charcoal rot percentage and mean length of spread of lesion were used for estimation of charcoal rot index (CRI) using the formula (CRI = CRP × 0.4 + MLS × 0.6).Disease reaction of each genotype was determined following the CRI scales (Das et al, 2018).…”

Deciphering the antagonistic effect of Streptomyces spp. and host-plant resistance induction against charcoal rot of sorghum

“…Charcoal rot of sorghum was reported to be managed by Bacillus altitudinis, Brevibacterium antiquum, Enterobacter ludwigii, Acinetobacter tandoii, Pseudomonas plecoglossicida P. monteilii, P. chlororaphis and Streptomyces spp. under greenhouse conditions (Das et al 2018;Gopalakrishnan et al 2011a;Alekhya et al 2016). In the literature survey, only one study was found which reports the management of charcoal rot of sorghum under field conditions using Amycolatopsis sp.…”

“…However, there are some novel crop management methods in practice to overcome the charcoal rot in sorghum. For instance, application of fungicides such as carbendazim and thiram (Manjeet and Umesh 2013); gamma-ray irradiation for development of disease tolerant varieties (Ashok et al 2018); development of disease-resistant sorghum varieties along with their evaluation in multiple locations (Das et al 2018); application of plant growth-promoting microbes such as Trichoderma sp., Pseudomonas sp., Bacillus sp., Klebsiella sp., Amycolatopsis sp., Acinetobacter sp. and Enterobacter sp.…”

Identification and Characterization of a Streptomyces albus Strain and Its Secondary Metabolite Organophosphate against Charcoal Rot of Sorghum

“…PGPR are widely reported for their secondary metabolite production and root-associated hormonal signaling [28]. Charcoal rot of sorghum has been reported to be managed under greenhouse conditions by Bacillus, Brevibacterium, Enterobacter, Acinetobacter, Pseudomonas, and Streptomyces [12,13,18]. However, under field conditions, there is only one report of managing the charcoal rot of sorghum using Amycolatopsis [17].…”

“…Control of charcoal rot in sorghum is challenging, as no single control measure is fully effective. Advanced sowing date, use of pathogen-free (M. phaseolina-free) seed, solarization of soil, and treatment with thiram and carbendazim are some of the control measures usually employed to manage charcoal rot disease but with limited success [11,12]. Biocontrol of this soil and seed-borne pathogen has also been attempted with beneficial microorganisms such as Bacillus, Pseudomonas, Enterobacter, Trichoderma, Acinetobacter, Amycolatopsis, and Streptomyces [13][14][15][16][17].…”