http://localhost:8080/handle/123456789/2716 Sat, 18 Apr 2026 14:31:38 GMT 2026-04-18T14:31:38Z http://localhost:8080/handle/123456789/4236 EFFECT OF MANUAL SEED SORTING, SEED SOLARIZATION AND SEED TREATMENT WITH VITAVAX AND HOT WATER ON LEAF SPOT (Bipo/arls sorokiniana) AND GRAIN YIELD OF WHEAT MD. ZOBAER, ABU SAYED In vitro and in vivo experiment were carried out to determine the effect of manual seed sorting, seed solarization and seed treatment with Vitavax and hot water on leaf spot (Bipolar is sorokiniana) and grain yield of wheat during the period from November-200S to April, 2006 at the farm of Sher-e-Bangla Agricultural University, Dhaka. The experiment was laid out in the Randomized Complete Block Design (RCBD) with three replications, The highest reduction of incidence of seed-borne Bipolaris sorokiniana was obtained by manually sorted healthy looking seeds treated with Vitavax-200 (T4). Significant reduction of incidence of same fungus was achieved by treating seeds with hot' water and solar heat. Treatment of apparently healthy seed with Vitavax-200 (0.4%) was found best in reducing the leaf infection, increasing seed germination and increased seed yield which was followed by treatment of unclean seeds with Vitavax-200 (0.4%). Out of four physical seed treatment methods, solar heat treatment of apparently healthy seeds was found to be the best in reducing leaf infection, increasing seed germination and seed yield. Apparently healthy seed treated with hot water increased seed germination, seed yield and also reduced the leaf infection. Apparently healthy seeds showed more or less similar performances to that of apparently healthy seed treated with hot water. The rest of the treatments have some remarkable effect in controlling the disease and increasing seed yield of wheat. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka in Partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY Sun, 01 Jan 2006 00:00:00 GMT http://localhost:8080/handle/123456789/4236 2006-01-01T00:00:00Z http://localhost:8080/handle/123456789/4235 ROLE OF ARBUSCULAR MYCORRHIZAL (AM) FUNGI ON GROWTH AND NUTRIENT UPTAKE OF SOME LEGUMES ALAM, MD. SAIFUL A pot experiment was conducted in the net house of the Department of Plant Pathology, Sher-e-Bangla Agricultural Unive~lty, Dhal?a during the period from May 2006 to December 2006 with a view to study the role of Arbuscular Mycorrhizal ~i\M) fungi on growth and nutrient uptobe of some legumes. A positive growth responseto AM was observed in all the selected legumes. The seedling emergence, plant height, shoot length and root length of inoculated legumes were comparatively higher then that of uninoculated control. The mycorrhizal inoculation suppressedroot rot, damping off and leaf blight disease of BARI Mungbean and suppressedroot rot, damping off, leaf blight and leaf spot disease of Lentil and ChicRpea. The inoculated plants showed early flowering and fruiting in comparison to uninoculated control. Mycorrhizal root colonization differed among the crops ranging from 20.00 to 49.75% and mycorrhizal dependency varied from 8.85 to 55.22%. Increasednutrient (N, P, K, $, 8 and Zn) uptal?e was recorded with the inoculated plants. Among the inoculated legumes comparatively higher N, P and K nutrient uptal?e was observed in Pigeonpea, Cowpea and ChicRpea respectively; where as S in Pigeonpea, B in Cowpea and Zn in Soybean. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka in Partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY Sun, 01 Jan 2006 00:00:00 GMT http://localhost:8080/handle/123456789/4235 2006-01-01T00:00:00Z http://localhost:8080/handle/123456789/4234 VARIETAL REACTION OF LEAF BLIGHT OF WHEAT CAUSED BY Bipolaris sorokiniana LAlLA, LUTFUN NAHER Subsequently three experiments were conducted in the Seed Pathology Laboratory, net house and experimental field of Sher-e BangIa Agricultural University, Dhaka, Bangladesh during the period from October 2005 to April 2006 to study the varietal reaction of leaf b1ight of wheat caused by Bipolaris sorokiniana. The wheat seeds of varieties Sonalika, Kanchan, Barkat, Shatabdi, Aghrani, Pavon- 76, Akbar, Gourab, Sourav and Protiva were collected from Bangladesh Agricultural Research Institute (BARl), Gazipur. In laboratory experiment the maximum number of conidia/seed (320) was recoded for the variety Sonalika and minimum number of conidia/seed (100) was recorded in variety Shatabdi. Maximum lesion length (11.67 em) on inoculated root was recorded from the variety Sonalika. No lesion i.e. infection (0.00 em) was recorded in the varieties Shatabdi and Akbar. In blotter test maximum germination (92.00%) was recorded in the variety Shatabdi, Sourab and Agrani and minimum (72.00%) was recorded in the variety Sonalika. Maximum (37%) incidence of seed borne Bipolaris sorokiniana was recorded in the variety SonaIika and minimum (17%) in Shatabdi, At panicle initiation stage, flowering stage, milking stage and hard dough stage minimum disease severity was recorded in the variety Shatabdi and maximum in the variety SonaJika. The highest grain yield/pot (5.97 g) was recorded in the variety Gourab. In the field maximum disease severity in all the counting periods was recorded in the variety Sonalika and minimum in the variety Shatabdi. The highest number of healthy spikelets/ear (26.77), number of grains/ear (38.66), number of healthy grains/ear (37.41) and IOOO-seedweight (42.12 g) were recorded in the variety Shatabdi. The highest grain yield/plot (391.77 g) was recorded in the variety Shatabdi and the lowest yield/plot (183.08 g) was recorded in the variety Aghrani. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka in Partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY Sun, 01 Jan 2006 00:00:00 GMT http://localhost:8080/handle/123456789/4234 2006-01-01T00:00:00Z http://localhost:8080/handle/123456789/4233 SCREENING OF EGGPLANT AGAINST WILT DISEASE RAHMAN, MD. ASHRAFUR An experiment was conducted in the Field of SAU (Sher-e-Bangla Agricultural University) farm allotted for the Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka to screen out the resistant cultivars of eggplant against wilt disease. Eight cultivars viz. Nayantara, Singhnath, Dhundul, Kazla, Marich Begun Luffa, Kata Begun and Uttara were used as treatments. At 55 days after transplanting (DA T) the cultivar Luffa exhibit the highest bacterial wilt incidence (800/0) and the lowest wilt incidence was recorded in the cultivar Kata Begun (30%). At 90 OAT the highest Fusarium and Nemic wilt incidence was recorded in the cultivar Luffa and the lowest wilt incidences were recorded in the cultivar Kata Begun. The highest shoot height was recorded in the cultivar Kata Begun and the lowest shoot height was recorded in the cultivar Singhnath. The highest gall number was recorded in the cultivar Luffa and the lowest gal1 number was recorded in the cultivar Kata Begun. The highest yield per hectare (29.84 t/ha) was recorded in the cultivar Nayantara and the lowest yield (10.50 t/ha) was recorded in the cultivar Dhundhul, Among the cultivars Kata Begun graded as resistant for both Bacterial, Fungal and Nemic wilt. A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka in Partial fulfillment of the requirements for the degree of MASTER OF SCIENCE (MS) IN PLANT PATHOLOGY Sun, 01 Jan 2006 00:00:00 GMT http://localhost:8080/handle/123456789/4233 2006-01-01T00:00:00Z