DEPARTMENT OF PLANT PATHOLOGY (PLP) http://103.7.193.12:8080/xmlui/handle/123456789/14 2026-06-09T23:50:05Z 2026-06-09T23:50:05Z ROY, APURBA http://103.7.193.12:8080/xmlui/handle/123456789/2136 2026-05-04T05:48:24Z 2023-12-01T00:00:00Z

EFFECT OF SILICON (SiO2) TO CONTROL BIPOLARIS LEAF BLIGHT AND TO IMPROVE SEED HEALTH STATUS OF WHEAT ROY, APURBA The experiment was conducted in the research field of Hajee Mohammad Danesh Science and Technology University, Dinajpur from December 2022 to April 2023 to evaluate the effectiveness of various doses of silicon dioxide (SiO2) as treatment to control leaf blight (Bipolaris sorokiniana) and to improve seed health status of wheat. In this experiment, three treatments were studied, T1 = Silicon dioxide @60 kg ha-1, T2 = Silicon dioxide @120 kg ha-1, T3= Silicon dioxide @180 kg ha-1. Two varieties were used, V1= BWMRI Gom-1 and V2= BWMRI Gom-2 within three replications and the experiment was set up as Randomized Complete Block Design (RCBD). Bipolaris leaf blight severity, seed health (seed number associated with pathogens and percent germination), plant height, spike length, thousands seed weight, biological yield, yield index and yield were significantly varied with different treatments. Minimum disease severity was recorded from Silicon dioxide @60 kg ha-1 on flag leaves at 67 DAS (2.3%), 72 DAS (6.44%), 77 DAS (6.77%), 82 DAS (8.35%) also on flag-1 leaves at 67 DAS (1.54%), 72 DAS (3.31%), 77 DAS (5.97%) and 82 DAS (11.12%). Minimum disease severity was recorded in BWMRI Gom-1 on flag leaf at 67 DAS (1.90%), 72 DAS (4.55%), 77 DAS (5.69%), 82 DAS (9.01%) and also on flag-1 leaves at 67 DAS (0.67%), 72 DAS (2.15%), 77 DAS (5.68%) and 82 DAS (10.19%). As a treatment variety interaction, the lowest disease severity on flag leaf was recorded from BWMRI Gom-1 with silicon dioxide @60 kg ha-1 interaction at 67 DAS (1.39%), 77 DAS (5.12%), 82 DAS (7.03%) and from BWMRI Gom-1 with Silicon dioxide @120 kg ha-1 interaction at 72 DAS (3.80%). Also the lowest disease severity on flag-1 leaves was recorded from BWMRI Gom-1 with Silicon dioxide @60 kg ha-1 at 67 DAS (0.0%), 72 DAS (1.11%), 77 DAS (3.72%) and 82 DAS (5.92%). As a treatment, minimum seed number was affected with Bipolaris sorokiniana was recorded from Silicon dioxide @60 kg ha-1 (10.13%). As a variety, minimum seed number was affected with Bipolaris sorokiniana was recorded from BWMRI Gom-1 (10.92%). Treatment variety interaction of BWMRI Gom-1 with Silicon dioxide @60 kg ha-1 showed minimum (8.18%) seed number was affected with Bipolaris sorokiniana. Highest grain yield (4.72 t ha-1) was obtained from silicon dioxide @60 kg ha-1. Maximum grain yield (4.36 t ha 1 ) was produced from BWMRI Gom-1. The highest grain yield (4.76 t ha-1) was obtained from the interaction of BWMRI Gom-1 with Silicon dioxide @60 kg ha-1. Finally, the research study concluded that using of BWMRI Gom-1 with the application of Silicon dioxide @60 kg ha-1 can be used effectively with lowest leaf blight disease infestation with better yield. EFFECT OF SILICON (SiO2) TO CONTROL BIPOLARIS LEAF BLIGHT AND TO IMPROVE SEED HEALTH STATUS OF WHEAT; A THESIS BY APURBA ROY, Student ID: 1601138, Thesis Semester: July-December, 2023, Session: 2022-2023; MASTER OF SCIENCE (M.S.) IN PLANT PATHOLOGY, DEPARTMENT OF PLANT PATHOLOGY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200; DECEMBER, 2023.

2023-12-01T00:00:00Z SHIMU, SHARMIN AFROZ http://103.7.193.12:8080/xmlui/handle/123456789/2112 2026-05-04T05:48:24Z 2023-12-01T00:00:00Z

FORMULATION OF Bacillus cereus HSTUB 17 FOR THE MANAGEMENT OF FUSARIUM WILT OF CHILLI SHIMU, SHARMIN AFROZ Fusarium wilt of chilli caused by Fusarium oxysporum is a devastating disease responsible for huge yield loss in Bangladesh. The present study was aim to formulate a bio-fungicide composed with Bacillus cereus HSTUB 17 for the management of Fusarium wilt of chilli in field conditions as an alternative means of chemical control. Several substrate viz. charcoal, maize bran, wood dust, soybean bran, and pea bran were employed for the formulation. The prepared bio-fungicides were packaged and kept in two distinct storage environments: (A) a refrigerator (40C); (B) a wooden shelve (at room temperature). The initial populations of B. cereus HSTUB 17 with formulated bio-fungicides were counted up to 240 days after incubation at 30-day intervals. The greatest density of spores was reported even 90 days after storage in wood dust-based bio-fungicide. Among all the formulated bio fungicides, wood dust-based bio-fungicide resulted higher reduction of Fusarium wilt incidence (%) and severity (%) (61.36% and 69.01%) (52.01% and 75.21%) in both Roshni and Bijlee plus, respectively. The same bio-fungicide also demonstrated maximum plant height (103.5 and 101.86 cm), highest shoot weight (420 g and 224 g), highest root length (29 and 28 cm), highest root weight (42.82 and 33 g), maximum number of branches/plant (180.90 and 229.29), highest number of fruit per plant (115.90 and 115.13), highest yield per plot ( 2.67 and 2.69 kg/plot), higher accumulation of phenol content (4.56 and 4.81 mg/100g), higher content of total soluble solids (13.77 and 13.23 °Brix), higher amount of antioxidant (9.15 and 8.13 mg/g), and higher amount of chlorophyll content (0.15 and 0.14 mg/mL) both Roshni and Bijlee plus, respectively. The findings of the study revealed the potentiality of the formulated wood dust-based bio-fungicide for the possible to management of Fusarium wilt of chili effectively. FORMULATION OF Bacillus cereus HSTUB 17 FOR THE MANAGEMENT OF FUSARIUM WILT OF CHILLI; A THESIS BY SHARMIN AFROZ SHIMU, Student No: 1701243, Session: 2022-2023; MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY, DEPARTMENT OF PLANT PATHOLOGY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200; DECEMBER 2023 .

2023-12-01T00:00:00Z http://103.7.193.12:8080/xmlui/handle/123456789/2092 2026-05-04T05:48:24Z 2024-06-01T00:00:00Z

INTEGRATED MANAGEMENT OF FUSARIUM WILT AND COLLAR ROT OF CHICKPEA Wilt and collar rot of chickpea caused by Fusarium oxysporum f. sp. ciceri and Sclerotium rolfsii, respectively is a serious disease responsible for maximum yield loss in Bangladesh. For integrated management of Fusarium wilt and collar rot of chickpea, Trichoderma asperellum HSTUT 1, Neem leaf extract and Autostin 50 WDS were selected. In dual culture, T. asperellum HSTUT 1 inhibited the mycelial growth of F. oxysporum and S. rolfsii by 63.33 and 56.66 %, respectively. Well diffusion assay showed that neem leaf extract and Autostin 50 WDG also inhibited the mycelial growth of F. oxysporum by 38.88, 65.22, 73.00 & 86.66% and S. rolfsii by 35.55, 60.77, 66.33 & 74.88%, respectively over control. In the field conditions, combined application of T. asperellum HSTUT 1, neem extract and Autostin 50 WDG resulted higher reduction of wilt incidence by 9.66, 1.21 & 0.00 % and collar rot incidence by 9.14, 2.33 & 0.00% at 30, 45 and 60 DAS, respectively in comparison to other treatments. Combined application of Trichoderma, neem leaf extract and Autostin 50 WDG also exhibited the highest germination (84.55 & 90.22%), highest shoot length (18.24 & 16.10 cm), highest root length (5.92 & 7.30 cm), highest shoot weight (0.88 & 0.83g), highest root weight (0.32 & 0.32g), highest pod number per plant (26, 49.33), highest nodule number per plant (46.33 & 31.00) and highest yield per plant (4.16 & 7.89g), respectively in Fusarium wilt and collar rot pathogen infected plant. The finding of the present study explored the potentiality of the combination of T. asperellum HSTUT 1, neem leaf extract and Autostin 50 WDG in the eco-friendly management of Fusarium wilt and collar rot of chickpea in field conditions. INTEGRATED MANAGEMENT OF FUSARIUM WILT AND COLLAR ROT OF CHICKPEA; A THESIS BY Student No: 1701314, Session: 2023-2024; MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY, DEPARTMENT OF PLANT PATHOLOGY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR-5200; JUNE 2024 .

2024-06-01T00:00:00Z ZULFIKER, ANTARIN http://103.7.193.12:8080/xmlui/handle/123456789/2088 2026-05-04T05:48:24Z 2024-06-01T00:00:00Z

Enhanced disease resistance in Yard-long bean (Vigna unguiculata) against Brown Rust and Fusarium Wilt diseases using Trichoderma and antioxidants ZULFIKER, ANTARIN Yard-long bean (Vigna unguiculata) is a significant leguminous crop in tropical countries. The vegetable is becoming more and more popular, because of its excellent flavour and high nutritional content. Brown rust and Fusarium wilt disease of yard-long beans caused by Uromyces phaseoli typica and Fusarium oxysporum f. sp. phaseoli are two devastating diseases responsible for maximum yield loss in Bangladesh. The present study was aimed at the bio-control of Brown rust and Fusarium wilt disease as an alternative means of chemical control. For enhancing systemic resistance in yard-long bean plants against Uromyces phaseoli typica and Fusarium oxysporum f. sp. phaseoli as well as for the sustainable and eco-friendly management of Brown rust and Fusarium wilt disease, two previously isolated Trichoderma (T. asperellum and T. harzianum) were used to control these diseases. This study was also concerned with the application of antioxidants; salicylic acid and tartaric acid. In the pot experiment, the triple combination of charcoal-based formulated T. asperellum, salicylic acid (4 mM), and tartaric acid (10 mM) exhibited the highest reduction of Rust incidence (75.02 %) and Rust severity (75.38 %) over control as well as Wilt disease incidence (69.86 %) and Wilt disease severity (80.56 %) over control at 60 days after sowing (DAS). The triple combination of charcoal-based formulated T. asperellum, salicylic acid (4 mM), and tartaric acid (10 mM) resulted in the highest yield in yard long bean (5.3 Kg/plant) compared to other treatments and control. This combination also exhibited the best results in all tested parameters in plant height (199.43 cm), leaf number (60.33), number of pod/plant (84.67) at 90 DAS, and pod length (65.63 cm). Furthermore, this combined application showed maximum total chlorophyll content (151.33 mg/g FW) as well. The study explored the use of charcoal-based formulated T. asperellum, salicylic acid (4 mM), and tartaric acid (10 mM) for the preparation of bio-fertilizer and/or bio-pesticides for the field application to control Brown rust and Fusarium wilt disease of yard-long bean. Enhanced disease resistance in Yard-long bean (Vigna unguiculata) against Brown Rust and Fusarium Wilt diseases using Trichoderma and antioxidants; A THESIS BY ANTARIN ZULFIKER, Student No. 1701185, Session: 2023-2024, Thesis Semester: January-June, 2024; MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY, DEPARTMENT OF PLANT PATHOLOGY, HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR; JUNE, 2024.

2024-06-01T00:00:00Z