Turcicum leaf blight

Maize is considered to be the third most important cereal after rice and wheat in India. It is being cultivated worldwide in a wider range of environmental conditions, because of its greater adaptability. It is known to be affected by more than 62 diseases. Among them, turcicum leaf blight caused by Exserohilum turcicum (Pass.) Leonard and Suggs is of significant importance as it drastically reduces the yield by reducing photosynthetic activity of the plant.

8p chauchaungayxua11 23-03-2021 9 2   Download

An investigation was undertaken to detect the genetic architecture of resistance of maize Turcicum leaf blight using six generation mean analysis in the two crosses viz., B-104 × CML-124 (C-I) and CML-124 × B-104 (C-II) at College of Agriculture, V. C. Farm, Mandya during Kharif 2014-15.

6p cothumenhmong9 18-01-2021 6 2   Download

The yield losses in maize due to turcicum leaf blight were determined by using two susceptible maize cultivars viz., CM-202 and CM-219 J under artificial epiphytotic condition. The experimented was conducted with two treatments i.e., inoculated with Exserohilum turcicum pathogen culture (conidiospores) through leaf whorl inoculation starting from 25 days after sowing and protected with spray of Hexaconazole @0.2 per cent. The maximum grain yield loss recorded in CM-219 J (37.64 %) followed by CM-202 (30.94 %).

4p gaocaolon9 22-12-2020 4 1   Download

Twelve fungicides including systemic and non-systemic, five bioagents and eight plant extracts were evaluated in vitro against Exserohilum turcicum, the causal agent of Turcicum leaf blight of maize. All the test fungicides, bioagents and plant extracts showed fungistatic action and significantly inhibited mycelial growth of the test pathogen over untreated control.

9p angicungduoc8 07-11-2020 9 1   Download

Turcicum leaf blight (TLB) caused by Exserohilum turcicum is a major foliar disease affecting maize. The aims of this study were to: assess tebuconazole (folicure 250 EC) spray schedules on disease severity of TLB, determine optimum growth stage of the crop for tebuconazole spray and amount of spray solution of fungicide to be applied for cost effective TLB management.

10p caygaocaolon6 30-07-2020 4 1   Download

Evaluation of new different fungicides, using the susceptible maize genotype CM-202 for the management of turcicum leaf blight caused by Exserohilum turcicum revealed that the combi products Azoxystrobin 18.2% + Difenoconazole 11.4% SC @ 0.250 ml /liter was found more effective in reducing the severity of disease followed by Azoxystrobin 18.2% + Difenoconazole 11.4%) SC @ 0.125 ml /liter were found effective in reducing the disease severity and also contributed for higher grain yield and The treatment which received a foliar spray of systemic fungicide Tebuconazole 250 EC @ 1.

5p angicungduoc6 22-07-2020 4 0   Download

Sweet sorghum is an important fodder crop, besides which can be used for the multiple purposes like grain, jaggery making and ethanol production. Leaf blight caused by the Exserohilum turcicum is an important disease affecting the sorghum. Studies on epidemiology of the disease were conducted at Main Agricultural Research station, UAS, Dharwad during kharif 2017.

7p angicungduoc6 22-07-2020 4 0   Download

Turcicum leaf blight (TLB) or Northern Corn Leaf Blight (NCLB) is a ubiquitous foliar disease of corn (maize) caused by Exserohilum turcicum, the anamorph of the ascomycete Setosphaeria. The TLB fungus survives through the winter on infected maize residue at the soil surface. As temperatures rise in the spring and early summer, the fungus produces spores on residue, and then the spores are splashed or wind-blown onto leaves of the new maize crop. Infection occurs during periods of moderate (64° to 81°F), wet and humid weather.

7p chauchaungayxua6 26-06-2020 13 1   Download

In the present study conducted at AICRP Maize, University of Agricultural Sciences, Dharwad, sixty single cross hybrids were produced by crossing twenty female inbred lines to three divergent inbred male testers in line x tester design. The parental inbred lines along with test cross hybrids, resistant check, susceptible check and hybrid checks were evaluated for their disease reaction against turcicum leaf blight under artificial epiphytotic condition.

8p nguathienthan5 04-06-2020 11 1   Download

Systemically acquired resistance (SAR) and Induced systemic resistance (ISR) agents can trigger host system to produce phenolic compounds, PR proteins, sugars which impart resistance in plants against invading pathogens. The application of different concentrations of salicylic acid and Trichoderma viride (Tri-25) viz., single inoculation, combination inoculation with challenge inoculation of Exserohilum turcicum on the enhancement of growth and management of disease with special emphasis to ISR and SAR against turcicum leaf blight disease.

14p nguathienthan5 04-06-2020 8 0   Download

Northern corn leaf blight (NCLB) caused by Exserohilum turcicum is a destructive disease in maize. Using host resistance to minimize the detrimental effects of NCLB on maize productivity is the most cost-effective and appealing disease management strategy.

11p vihashirama2711 21-05-2020 7 0   Download

Northern Corn Leaf Blight (NCLB or NLB) caused by Exserohilum turcicum is a common disease of maize in many parts of the world including India. Resistance to NCLB is complexly inherited and controlled by several quantitative trait loci (QTL) distributed across the genome. Phenotype as well as linked DNA marker based selection for resistance to NCLB is expected to be effective. Hence an investigation was carried out involving a total of 569 F2:3 families derived from two crosses viz., PH234 X PHBP3 and PH234 X PH84K, where PH234 is resistant parent and PHBP3 and PH84K are susceptible parents.

7p chauchaungayxua5 08-05-2020 7 1   Download

Exserohilum turcicum is an important pathogen of both sorghum and maize, causing sorghum leaf blight and northern corn leaf blight. Because the same pathogen can infect and cause major losses for two of the most important grain crops.

11p viharuno2711 21-04-2020 4 1   Download

Among biotic stresses affecting maize, the pre-harvest aflatoxin contamination produced by Aspergillus flavus and turcicum leaf blight (TLB) caused by Excerohilum turcicum are most important diseases in India. Resistance of maize to aflatoxin contamination and TLB, is a penultimate goal in breeding programs that screen for these important traits with the aim of developing resistant commercial hybrids. Hence a study on reaction of 26 inbred lines of heat tolerant maize to both the diseases was conducted under artificial epiphytotic field conditions for two seasons.

9p kethamoi4 16-04-2020 6 0   Download

Studies on Biochemical basis of resistance to turcicum leaf blight of maize caused by Exserohilum turcicum revealed that the total sugar content was more in resistant genotypes Nithyashree and Hema as campared with susceptible genotypes, 219J and CM-202 when estimated following Nelson‟s modification of Somogyi‟s method.

11p caygaocaolon4 04-04-2020 6 0   Download

c Sorghum [Sorghum bicolor (L.) Moench] belongs to family Poaceae. It is termed, as 'poor man's crop' as it performs well even in marginal lands under moisture stress conditions, low availability of fertilizers and other inputs as compared to other crops. The foliar pathogens are potential yield reducers, and may cause substantial yield losses when occur in epidemic form.

13p nguaconbaynhay4 22-03-2020 9 1   Download

Maize (Zea mays L.) is a major food crop of global importance is greatly affected by turcicum leaf blight commonly called as northern leaf blight caused by fungal pathogen Exserohilum turcicum. The morphological and molecular screening of maize genotypes for resistance against turcicum leaf blight is very crucial in maize crop improvement programme. Morphologically genotypes were classified based on the disease severity as resistance and susceptible genotypes.

17p chauchaungayxua4 18-03-2020 3 0   Download

Regeneration protocol is pre-requisite for the development of transgenic plants. Maize (Zea mays L) crop is severely affected by fungal disease turcicum leaf blight. In the present study, standardizing the regeneration protocol for maize genotype was carried for the development of transgenic maize against turcicum leaf blight. The direct regeneration of maize involved nodal explants from the maize coleoptiles.

11p chauchaungayxua4 18-03-2020 4 0   Download

A new Baby corn hybrid, GAYMH-1 involving two diversified inbred parents was evaluated across the locations all over India during kharif 2015 to kharif 2017. It yielded on an average 14.36 Q/ha baby Corn yield and found 12.6 % superior in yield over the check HM-4 in the Peninsular Zone (PZ). It yielded on an average 22.99 Q/ha baby Corn yield and it is found 18.6 % superior in yield over the check HM-4 in Central West Zone (CWZ). From the quality point of view, this hybrid contains 87.25% moisture, 3.62 % total carbohydrate, 1.82% total soluble sugar, 1.52% reducing sugar, 0.

6p caygaocaolon3 09-03-2020 10 1   Download

Among fungicides treated plots the grain and fodder yield of maize were significantly higher and disease severity is minimum than control. Among tested fungicide minimum disease severity (18.15%), maximum grain yield (38.71 q/ha) and fodder yield (182.75 q/ha) was recorded in azoxystrobin 18.2% + difenoconazole 11.4% SC followed by tebuconazole 25.9 EC and hexaconazole 5 SC. Least effective fungicide is azoxystrobin 23 SC with 25.71%, 23.77 and 90.29 q/ha of disease severity, grain yield and fodder yield, respectively.

7p cothumenhmong3 22-02-2020 9 0   Download