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Bihar Agricultural University, Sabour

Bihar Agricultural University, Sabour established on 5th August, 2010 is a basic and strategic institution supporting more than 500 researchers and educationist towards imparting education at graduate and post graduate level, conducting basic, strategic, applied and adaptive research activities, ensuring effective transfer of technologies and capacity building of farmers and extension personnel. The university has 6 colleges (5 Agriculture and 1 Horticulture) and 12 research stations spread in 3 agro-ecological zones of Bihar. The University also has 21 KVKS established in 20 of the 25 districts falling under the jurisdiction of the University. The degree programmes of the university and its colleges have been accredited by ICAR in 2015-16. The university is also an ISO 9000:2008 certified organisation with International standard operating protocols for maintaining highest standards in teaching, research, extension and training.VisionThe Bihar Agricultural University was established with the objective of improving quality of life of people of state especially famers constituting more than two third of the population. Having set ultimate goal of benefitting society at large, the university intends to achieve it by imparting word-class need based agricultural education, research, extension and public service.

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20181
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Subject: Plant Pathology × Author: Kriti, Aakanksha ×
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    ThesisItemOpen Access
    Determination of Morphological and Biochemical Changes upon Application of Nanoparticle in Plant Pathosystem
    (Department of Plant Pathology, BAU, Sabour, 2018-06) Kriti, Aakanksha; Ghatak, Abhijeet
    A large number of fungicides for foliar disease management are developed with sulphur and copper compounds as the basic ingredient. These ingredients are known for environmental pollution with its degradation issue. With a very limited research results it is accepted that plant diseases can be managed by application of nanoparticle (NP) that could replace the mentioned ingredients from the agricultural system. The present investigation was undergone in order to explore the morphological and biochemical variation on nanoparticle application in two plant-pathosystems i.e. Bipolaris-sorokiniana-barley and Alternaria brassicicola-mustard. The laboratory synthesised NPs [25-32 nm for silver (Ag) and 29-37 nm for zinc (Zn)] at 100 ppm revealed almost 75-100% spore germination of B. sorokiniana and A. brassicicola was inhibited. Similarly, the same concentration found best to restrict mycelial growth of the two pathogens. NP-applied leaves produced smaller lesion size in comparison to the leaves devoid of NP application. Overall, lesion size was reduced by ~70% in barley and ~45% in mustard leaves when they received NP application 30 minutes before pathogen inoculation. However, in some genotypes this trend was not constantly evident. Similar result was observed for phenol estimation; the greater phenol was quantified in infected leaves where NP was applied before pathogen inoculation. In comparison to only pathogen inoculated leaves, higher level of phenol expression was seen in leaves treated with NP+P by ~19% and ~13% in barley and mustard, respectively. Higher amount of chlorophyll was harvested in leaves with NP application with or without pathogen infection in comparison to the infected leaves (no NP applied). This indicates the applied NP might catalyze a pathway for chlorophyll production. At the end, the effect of NP at field scale was determined. AgNP showed significantly lower disease severity of B. sorokiniana infection compared to ZnNP across genotypes. However, no definite trend was established for the two NPs in A. brassicicola infected mustard genotypes. The information generated in this work needs the further in-depth study in order to identify the mechanism of respective NP for reducing infection in the two plant pathosystems.