http://localhost:8080/handle/123456789/2722 2026-04-17T12:13:58Z http://localhost:8080/handle/123456789/4316 BIODIVERSITY, HABITAT AND MORPHOLOGY OF MUSHROOM OF DIFFERENT FOREST REGIONS OF BANGLADESH RASHID, MD. HARUN-UR Studies on the biodiversity, habitat and morphology of mushrooms are gaining importance as many macro fungi are becoming extinct and facing threat of extinction because of habitat destruction. Present study deals with the biodiversity, habitat and morphology of mushroom grown in leaved, deciduous and mixed forest of Bangladesh. More than 117 samples were collected from nine selected districts of Bangladesh viz. Bari sal, Borguna, Patuakhali, Perojpur, Jhalokathi, Bandorban, Dhaka, Gazipur and Tangail. More than 85% annual rainfall, mean daily temperature ranges between 29 to 31(Ie and relative humidity more than 80% is received during the monsoon period (June to September). Soil pH ranges in between 6 to 6.5. Sandy clay, .clayand .clay loam soils are suitable for growing of mushrooms. Maximum Mushrooms grown on natural humus of the forest and maximum hard caped mushrooms such as Ganoderma grown on bark of tree or dead plant as parasite or saprophytes. The size of fructification ranges from 3-4x23 to 20-25x8-10 em. The spore size was measured ranging between 5x3.S to 24x9 pm. In total 20 different species were founded under 14 families viz. Amanitaceae ( Amanita hemibapha, Amanita bisporigera, Amanita rubescens), Pyronemataceae (Aleuria aurantia), Boletaceae (Boletus subvelutipes, Tylopilus badiceps, Retiboletus omatipesy; Agaricaceae (Agaricus sp.), Tricholomataceae (Callistosporium sp.), Marasmiaceae (Gymnopus sp.), Sarcosomataceae (Bulgaria inquinans), Russulaceae (Russula crustosa), Roselliniaceae (Rosellinia sp.), Cortinariaceae (Cortinarius corrugatus), Mycenaceae (Mycena epipterygia), Entolomataceae (Nolanea strictia). Ganodermataceae (Ganoderma lucidum, Ganoderma apphannatum, Ganoderma tsuage) and Polyporaceae (Polyporus sp.). The maximum frequency of occurrence was exhibited by Ganoderma tsuage (33.33%) and the maximum density was recorded for Ganoderma tsuage (95%). This informative study shows that the forest of Bangladesh is rich in mushroom diversity. 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 2013-01-01T00:00:00Z http://localhost:8080/handle/123456789/4315 BIO-EFFICACY OF MICROBIAL ANTAGONISTS AGAINST FOOT AND ROOT ROT PATHOGEN(S) OF LENTIL HOQUE, SANZIDA The experiment was conducted in the Disease Diagnostic Laboratory of the Department of Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka during the period of November 2011-February 2013 to determine the bio- efficacy of microbial antagonists against foot and root rot pathogen(s) of lentil. Two fungal genera namely Fusarium oxysporum and Sclerotium rolfsii were isolated from foot and root rot infected lentil plants. Seven seed treatment agents, viz., Rhizobium leguminosarum isolate 1, isolate 2, isolate 3, isolate 4, Pseudomonas fluorescens, Trichoderma harzianum and Control (sterile water) were used in this experiment. In dual culture method, highest zone of inhibition of F. oxysporum (57.37%) was measured against R. leguminosarum isolate 3 and isolate 4. In case of S. rolfsii, 80.00% and 31.85% zone of inhibition were measured' against P. jluorescens and T. harzianum, respectively. In rolled paper towel method, the highest germination (91.00%) and lowest dead seeds (9.00%), no abnormal and diseased seedlings were counted from seeds treated with R leguminosarum isolate I. The maximum vigor index (1390.00) was observed in P. fluorescens treated seeds. In water agar test tube method, the highest germination (88.00010) and lowest dead seeds (11.67%) were counted from R. leguminosannn isolate 4 treated seeds. The maximum number of normal seedlings (84.56) and minimum number of abnormal seedlings (2.00) were counted from seeds treated with R. leguminosarum isolate 1 and isolate 2, respectively. The minimum number of diseased seedlings (0.61) were counted from T. harzianum treated seeds. 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- IN PLANT PATHOLOGY 2013-01-01T00:00:00Z http://localhost:8080/handle/123456789/75 CONTROL OF COTTON BOLL ROT BY USING SOME SELECTED CHEMICALS MAHMOOD, SYED MOAZ An experiment was conducted at the Research Farm of Sher-e- Bangla Agricultural University, Dhaka, Bangladesh during the kharif season of 2013-2014 to study the effect of some selected chemicals to control cotton boll rot disease. The experiment was carried out under in- vitro and in field conditions. The field experiment was laid out in a Randomized Complete Block Design A Thesis Submitted to the Faculty of Agriculture, Sher-e-Bangla Agriculture University, Dhaka, In partial fulfilment of the requirements for the degree of MASTER OF SCIENCE IN PLANT PATHOLOGY SEMESTER: JULY- DECEMBER, 2013 2013-12-01T00:00:00Z http://localhost:8080/handle/123456789/74 CULTURAL, MORPHOLOGICAL, PATHOGENIC AND MOLECULAR CHARACTERIZATION OF Alternaria porri CAUSING PURPLE BLOTCH OF ONION MOHSIN, SAYED MOHAMMAD Purple blotch of onion samples collected from different onion growing regions of Bangladesh and studied their cultural, morphological, pathogenic and molecular characterization. Colony color varied between light to dark olivacious and grayish white. Shapes of colonies were irregular, regular with and without concentric ring. Margin of colonies were entire, irregular and wavy with effuse, fluffy and velvety texture. Isolates impregnated media with color ranging between grey to brown. Growth rate of isolates was between 2.43 to 3.95 mm/day with fast growth in isolate DSTR 02 and least in MMBH. Morphological variation in conidia production was between 7.720×10 3 to 47.02×10 3 per mm 2 with sporulation time 3.33 to 11.00 days. The conidial shape was straight to curve with light to deep brown color. Conidial septation ranged from 3.00 to 6.00 × 1.00 to 2.00 with size from 11.20 to 39.20 × 4.76 to 11.43 µm. Isolates shown variations in lesions size exhibited the pathogenic variation exist in the environment. In molecular study no band were found by using seven 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 IN PLANT PATHOLOGY SEMESTER: JULY-DECEMBER, 2013 2013-12-01T00:00:00Z