Mummineni Sunitha | University of Agricultural Sciences,GKVK,Bangalore (original) (raw)
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Papers by Mummineni Sunitha
Journal of experimental agriculture international, Jan 31, 2024
Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by A... more Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by Alternaria brassicae is the most destructive disease at the curd stage and seed setting stage, attributed to causing 30-50% losses and in severe cases reaching up to 98% in seed crop. In the present investigation, the pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by a yellow chlorotic halo. Later on, lesions were found to coalesce forming irregular, brown to dark brown patches with concentric rings. The disease is difficult to manage alone with fungicides or bio agents or botanicals. Hence the present study was undertaken to manage the disease effectively by application of fungicides, bio agents, botanicals and their combinations. During the investigation on integrated management under sick pot conditions, the combination of T. viride + Neem + Azoxystrobin (10.81% Percent Disease Index) was found most effective with inhibition of disease by 79.02%. This was followed by T. viride + Azoxystrobin (11.63% Percent Disease Index) with inhibition of the disease by 77.40% compared to the control 51.52% Percent Disease Index.
trends in agriculture science, 2023
vignan varta, 2023
The majority of plant diseases are caused by microorganisms of which fungi are the most common fo... more The majority of plant diseases are caused by microorganisms of which fungi are the most common followed by bacteria and viruses. Endophytic fungi reside in the tissues beneath the epidermal cell layers and live within a plant for at least part of its life without causing apparent diseases. An alternative for chemical control is the application of biocontrol agents, which includes the application of fungal endophytes in the biocontrol of a wide array of plant pathogens. Endophytes' ability to successfully colonize a host plant depends on several variables, including the plant's tissue type, genotype, microbial taxon and strain type, and biotic and abiotic environmental conditions. Crops with endophyte colonization have a higher propensity to withstand diverse stresses than those without this relationship. Through antibiosis or induced systemic resistance, endophytes are crucial for maintaining the health of plants since they can shield or prepare the plant for biotic challenges while also promoting growth and productivity. The primary filamentous fungi investigated and employed as biological control agents against nematodes as resistance inducers are endophytic fungi. Overall, endophytes are viewed as extremely significant plant partners with the ability to increase agricultural output by reducing yield loss through the provision of better stress tolerance to the host in a sustainable manner.
Journal of Experimental Agriculture International, 2024
Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by A... more Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by Alternaria brassicae is the most destructive disease at the curd stage and seed setting stage, attributed to causing 30-50% losses and in severe cases reaching up to 98% in seed crop. In the present investigation, the pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by a yellow chlorotic halo. Later on, lesions were found to coalesce forming irregular, brown to dark brown patches with concentric rings. The disease is difficult to manage alone with fungicides or bio agents or botanicals. Hence the present study was undertaken to manage the disease effectively by application of fungicides, bio agents, botanicals and their combinations. During the investigation on integrated management under sick pot conditions, the combination of T. viride + Neem + Azoxystrobin (10.81% Percent Disease Index) was found most effective with inhibition of disease by 79.02%. This was followed by T. viride + Azoxystrobin (11.63% Percent Disease Index) with inhibition of the disease by 77.40% compared to the control 51.52% Percent Disease Index.
Vigyan Varta An International E-Magazine for Science Enthusiasts, 2022
Plant parasitic nematodes are one of the major biotics pose threat to the agricultural output of ... more Plant parasitic nematodes are one of the major biotics pose threat to the agricultural output of many crops across the world. Considering the extremely hazardous nature of chemical nematicides, new nematode control measures must be developed. In this regard, nematophagous fungus can be an intriguing biocontrol option. These fungi reduce nematodes damage directly by mechanisms of parasitism, paralysis, antibiosis and also through lytic enzyme production. Nowadays, these biocontrol agents are commercialized under a various trade name, reflecting the public's interest in understanding more about biocontrol agents.
Biological Forum – An International Journal, 2023
Cauliflower belongs to the family Brassicaceae and is one of the most important winter vegetable ... more Cauliflower belongs to the family Brassicaceae and is one of the most important winter vegetable after cabbage in terms of area and production across the globe. Alternaria leaf spot is the most destructive disease of cauliflower crop at vegetable curd stage and seed setting stage. It has been attributed to cause 30-50% losses and in most severe cases, the losses in yield may reach up to 98% in seed crop. The pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by yellow chlorotic halo. Severely affected seedlings showed dark brown spots with damping off symptoms. During the present investigation, different inoculum levels of the pathogen-Alternaria brassicae were evaluated to assess their effect on development of Alternaria leaf spot disease on cauliflower. The lowest Percent Disease Index (7.41%) was noticed with 5g of inoculum load whereas 40g of inoculum load caused maximum disease development with Percent Disease Index (50.81%).
Drafts by Mummineni Sunitha
Books by Mummineni Sunitha
Current Research in Plant Pathology, 2021
The author/publisher has attempted to trace and acknowledge the materials reproduced in this publ... more The author/publisher has attempted to trace and acknowledge the materials reproduced in this publication and apologize if permission and acknowledgements to publish in this form have not been given. If any material has not been acknowledged please write and let us know so that we may rectify it.
Journal of experimental agriculture international, Jan 31, 2024
Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by A... more Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by Alternaria brassicae is the most destructive disease at the curd stage and seed setting stage, attributed to causing 30-50% losses and in severe cases reaching up to 98% in seed crop. In the present investigation, the pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by a yellow chlorotic halo. Later on, lesions were found to coalesce forming irregular, brown to dark brown patches with concentric rings. The disease is difficult to manage alone with fungicides or bio agents or botanicals. Hence the present study was undertaken to manage the disease effectively by application of fungicides, bio agents, botanicals and their combinations. During the investigation on integrated management under sick pot conditions, the combination of T. viride + Neem + Azoxystrobin (10.81% Percent Disease Index) was found most effective with inhibition of disease by 79.02%. This was followed by T. viride + Azoxystrobin (11.63% Percent Disease Index) with inhibition of the disease by 77.40% compared to the control 51.52% Percent Disease Index.
trends in agriculture science, 2023
vignan varta, 2023
The majority of plant diseases are caused by microorganisms of which fungi are the most common fo... more The majority of plant diseases are caused by microorganisms of which fungi are the most common followed by bacteria and viruses. Endophytic fungi reside in the tissues beneath the epidermal cell layers and live within a plant for at least part of its life without causing apparent diseases. An alternative for chemical control is the application of biocontrol agents, which includes the application of fungal endophytes in the biocontrol of a wide array of plant pathogens. Endophytes' ability to successfully colonize a host plant depends on several variables, including the plant's tissue type, genotype, microbial taxon and strain type, and biotic and abiotic environmental conditions. Crops with endophyte colonization have a higher propensity to withstand diverse stresses than those without this relationship. Through antibiosis or induced systemic resistance, endophytes are crucial for maintaining the health of plants since they can shield or prepare the plant for biotic challenges while also promoting growth and productivity. The primary filamentous fungi investigated and employed as biological control agents against nematodes as resistance inducers are endophytic fungi. Overall, endophytes are viewed as extremely significant plant partners with the ability to increase agricultural output by reducing yield loss through the provision of better stress tolerance to the host in a sustainable manner.
Journal of Experimental Agriculture International, 2024
Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by A... more Cauliflower is widely grown throughout the world. Alternaria leaf spot of Cauliflower caused by Alternaria brassicae is the most destructive disease at the curd stage and seed setting stage, attributed to causing 30-50% losses and in severe cases reaching up to 98% in seed crop. In the present investigation, the pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by a yellow chlorotic halo. Later on, lesions were found to coalesce forming irregular, brown to dark brown patches with concentric rings. The disease is difficult to manage alone with fungicides or bio agents or botanicals. Hence the present study was undertaken to manage the disease effectively by application of fungicides, bio agents, botanicals and their combinations. During the investigation on integrated management under sick pot conditions, the combination of T. viride + Neem + Azoxystrobin (10.81% Percent Disease Index) was found most effective with inhibition of disease by 79.02%. This was followed by T. viride + Azoxystrobin (11.63% Percent Disease Index) with inhibition of the disease by 77.40% compared to the control 51.52% Percent Disease Index.
Vigyan Varta An International E-Magazine for Science Enthusiasts, 2022
Plant parasitic nematodes are one of the major biotics pose threat to the agricultural output of ... more Plant parasitic nematodes are one of the major biotics pose threat to the agricultural output of many crops across the world. Considering the extremely hazardous nature of chemical nematicides, new nematode control measures must be developed. In this regard, nematophagous fungus can be an intriguing biocontrol option. These fungi reduce nematodes damage directly by mechanisms of parasitism, paralysis, antibiosis and also through lytic enzyme production. Nowadays, these biocontrol agents are commercialized under a various trade name, reflecting the public's interest in understanding more about biocontrol agents.
Biological Forum – An International Journal, 2023
Cauliflower belongs to the family Brassicaceae and is one of the most important winter vegetable ... more Cauliflower belongs to the family Brassicaceae and is one of the most important winter vegetable after cabbage in terms of area and production across the globe. Alternaria leaf spot is the most destructive disease of cauliflower crop at vegetable curd stage and seed setting stage. It has been attributed to cause 30-50% losses and in most severe cases, the losses in yield may reach up to 98% in seed crop. The pathogen Alternaria brassicae was found to produce typical symptoms of the disease as small, irregular brown spots with concentric rings, also surrounded by yellow chlorotic halo. Severely affected seedlings showed dark brown spots with damping off symptoms. During the present investigation, different inoculum levels of the pathogen-Alternaria brassicae were evaluated to assess their effect on development of Alternaria leaf spot disease on cauliflower. The lowest Percent Disease Index (7.41%) was noticed with 5g of inoculum load whereas 40g of inoculum load caused maximum disease development with Percent Disease Index (50.81%).
Current Research in Plant Pathology, 2021
The author/publisher has attempted to trace and acknowledge the materials reproduced in this publ... more The author/publisher has attempted to trace and acknowledge the materials reproduced in this publication and apologize if permission and acknowledgements to publish in this form have not been given. If any material has not been acknowledged please write and let us know so that we may rectify it.