Research List

No.	Researcher	Title	Abstract	Year
2581	Moe Sandar Shein1 , Khin Swe Swe Htun2	PRELIMINARY STUDY ON SOME WILD ORCHIDS AT NAT MA TAUNG WILDLIFE SANCTUARY, KAN PET LET TOWNSHIP IN SOUTHERN CHIN STATE*	This research paper was concerned with some wild orchids of natural habitat in Nat Ma Tung Wildlife Sanctuary in Kan Pet Let Township. These wildlife Sanctuary was located in Kan Pet Let Township of Min Tet District in Southern Chin State and also east part and 2.5 miles distance aways from Kan Pet Let city. In this study (9) genera and (10) species were recorded in study area. Nat Ma Taung is hill evergreen forest and rain forest type. Various wild orchids are stretch out around the Nat Ma Taung Montain hill and rich in diversed flora and fauna. All collected species are epiphyte, terrestrial and lithophyte. Collected genera namely Anthogonium, Arundina, Cymbidium, Dendrobium, Habenaria, Obeionia, Paniisea, Peristylis, Pleione and Spathoglottis, were recorded and have been taken photographs in natural habitat of orchids. The collected specimens were classified, identified and described with color photographs also found unknown species in study area. The morphological characters have been emphasized and artificial keys from the tribe to the species have been constructed and location was mention by Global Positioning System (GPS).	2025
2582	Su Su Hlaing1, Soe Soe Aung2, Hlaing Nwe Thynn3	INVESTIGATION ON CULTIVATION OF FOUR PERENNIAL RICE CULTIVARS IN FIELD UNDER MANDALAY CLIMATE	This study deals with the climatic adaptation of four perennial rice (PR) cultivars (PR 23, PR 25, PR 101, PR 107) for five growing seasons using Single Trial Design, and their growth and yield characters were studied in the Mandalay area, Patheingyi Township. The cultivation was carried out in the field conditions at Let Thit Village, Patheingyi Township, Mandalay Region from 2021 to 2022. The seeds were provided by the Research Center of Perennial Rice Engineering and Technology in Yunnan, School of Agriculture (SOA), Yunnan University (YNU) in China. Plant height and number of tillers were collected every 15-days after transplanting [DAT (Day After Transplanting)] until harvesting. At the harvesting times, number of panicles, panicles lengths, numbers of spikelets, filled-grains weight, filled-grains percentages and 1000 grains weight were collected and measured from ten sampling plants of each plot, and the yield data were collected from the 6.6 x 6.6 ft2 of two sampling plots. In the growth characters, PR 101 resulted in the tallest plant height during the five growing seasons. The maximum numbers of tillers were found in PR 23. In the yield characters, the maximum numbers of panicles, filled-grains weight, filled-grains percentages and highest yields were found in PR23. The longest panicle lengths were found in PR 107, maximum numbers of spikelets in PR 101, maximum straw dry weight in PR 25 and highest 1000 grains weight in PR107 were obtained respectively. In according of these findings indicated the capability of perennial rice cultivation, well-adaptable growth characters and high yields of perennial rice cultivars over their successive regrowth seasons starting from the first growing seasons until the fifth growing seasons, short duration of life span, low cost of labor and cultural management system in field preparation during rice cultivation. Therefore, the cultivation of PR cultivars would provide many benefits for the efficient food supply and security, and also for the socio-economic development of Mandalay Region.	2025
2583	Su Hlaing Htwe1, Aye Nann Han2	TAXONOMIC STUDY ON TEN WILD MUSHROOMS FROM NGALAIK RESERVED FOREST IN NAYPYITAW UNION TERRITORY	The taxonomic study on wild mushrooms was undertaken from Ngalaik Reserved Forest in Naypyitaw Union Territory. The study areas are situated between North latitude 19� 59.974' and East longitude 96�16. 795'. Ten species were collected during the year from July to October in 2022. The 10 species belonging to 6 genera, 4 families and 2 order were collected, preserved, classified and identified. The collected species were identified as Agaricus arvensis Schaeff., Agaricus bitorquis (Quel.) Sacc., Lepiota castaneidisca Murrill., Termitomyces bulborhizus T.Z.Wei, Termitomyces clypeatus R.Heim., Termitomyces eurhizus (Berk.) R.heim, Termitomyces heimii Natarajan., Podaxis pistillaris (L.)Fr., these 8 species are growing on the soil Podoscypha petalodes (Berk.) Boidin.and Ganoderma lucidum (Curtis) P. Krst., are growing on decaying wood and root. In the present study, the edible, inedible, and medicinal wild mushrooms species were also found. Among them 7 species were edible 2 species were inedible and 1 species were usable for medicinal mushroom. The edible mushrooms were found under genus of Agaricus arvensis Schaeff., Agaricus bitorquis (Quel.), Podaxis pistillaris (L.), Termitomyces bulborhizus T. ZWei, Termitomyces clypeatus R. Heim, Termitomyces eurhizus (Berk.) R.Heim, Termitomyces heimii Natarajan. Inedible 2 species are Lepiota castaneidisca Murrill., Podoscypha petalodes (Berk.) Boidin. Ganoderma lucidum (Curtis) P.Karst. was usable for the medicinal purpose. An artificial key to the studied species was constructed and presented.	2025
2584	Theint Thandar Htet1	MANGROVE VEGETATION DIVERSITY IN TWO VILLAGES OF KYAUKTAN TOWNSHIP, YANGON REGION	Mangrove forest vegetation analyses were carried out from December 2022 to September 2023 at Kayin Chaung (KC) and Kalartan (Shwe Pyi Thit, SPT) Villages, Kyauktan Township, Yangon Region. A total of 36 quadrats (10 � 10) m2 were established at two different sites (11 quadrats in Kayin Chaung Village and 25 quadrats in Kalartan Village). A total of 23 species belong to 22 genera of 14 families were recorded in Kayin Chaung Village and 20 species belong to 19 genera of 14 families were recorded in Kalartan Village. Species diversity, species richness and evenness were calculated by Shannon-Wiener and Simpson�s indices. The quantitative analysis of species richness showed that the species richness in Kayin Chaung Village (23.83) was higher than that of Kalartan Village (20.92). The results of species diversity showed that Kayin Chaung Village was relatively diverse (H = 2.90, D = 0.93) than Kalartan Village (H = 2.55, D = 0.90). As a result of Shannon-Wiener evenness, the plant species in Kayin Chaung Village (E = 0.92) was more evenly distributed than Kalartan Village (E = 0.85). The Important Value Index (IVI) for tree species was determined by the sum of relative density, relative frequency and relative dominance by using the methods of Curtis. According to the IVI value, the ecologically successful species were Sonneratia caseolaris (L.) Engl. (La-mu) and Sonneratia apetala Banks (Kan-pa-la) in both of the villages.	2025
2585	San Win1, Nilar2	IN VITRO SEED GERMINATION AND SEEDLING DEVELOPMENT OF THE ORCHID PHOLIDOTA ARTICULATA LINDL.	In this experiment, the plantlets were initiated from seeds of Pholidota articulata Lindl. (Kwyetmeee pan myokywe). The experiment was carried out at Plant Tissue Culture Laboratory of the Htone Bo Agricultural Research Farm, Taunggyi, Department of Agricultural Research from October, 2022 to March, 2023. This study was focusing on evaluating the effect of natural additive as plant growth regulators (PGR). The additive used in this study was 100 ml of coconut water (CW) that supplemented in Murashige and Skoog (MS) medium. Four treatments such as T1 (MS only), T2 (half MS), T3 (Full MS and CW) and T4 (half MS and CW). Each treatments of 6 replications and experimental design was set up using Completely Randomized Design (CRD). Murashige and Skoog (MS) and Half MS media were used to study their effects in seed germination and protocorm development. Maximum percentage of seed germination was observed in Half MS and coconut water (T4) medium and minimum percentage of seed germination was in MS only medium (T1). The best protocorms for plantlet development i.e MS media was supplemented with various combinations of Cytokinins (BAP) and Auxin (NAA). Therefore, in vitro developed protocorms were sub-cultured on the Murashige and Skoog (MS) medium, supplemented with coconut water and different concentrations of 6-benzylaminopurine (BAP) and ?-naphtalene acetic acid (NAA). The highest number of shoot and number of leaves was observed in MS medium supplemented with 3mg.l-1 BAP.	2025
2586	Myint Myint Khaing 1, Aye Nu Yin2	EFFECTS OF HORMONES AND COCONUT WATER ON CLONAL MULTIPLICATION OF POTATO (SOLANUM TUBEROSUM L.)	Shoots were produced from tissue culture of Solanum tuberosum L. Two experiments were carried out at the Plant Tissue Culture Laboratory, Department of Agricultural Research, Htone Bo, Agricultural Research Farm, Taunggyi during March to June, 2022. The shoot tips of potato cultivar Markies were inoculated in Murashige and Skoog (MS) media supplemented with the different concentration of alpha-Naphthalene acetic acid (NAA), 6-benzylaminopurine (BAP) and coconut water. Hormonal effects on plant height, shoots, leaves and roots formation were studied. The maximum plantlet height and the highest number of root formation were observed in potato cultivar Markies on MS + 200 ml coconut water. The highest leaves formation were observed in � MS + 200 ml coconut water medium. The highest number of shoot were found in 0.05 mg/L NAA + 1.0 mg/l BAP +200 ml coconut water supplemented with MS medium.	2025
2587	Khin Myo Win1, Htet Ei Ei Chaw2, Shoon Lae Yee Htwe3	DISTRIBUTION OF BLUE GREEN ALGAE FROM PADDY FIELD IN BO TAUG KONE VILLAGE OF PATHEINGYI TOWNSHIP, MANDALAY REGION	Blue Green Algae perform as a bioindicator for paddy field and play the important roles in agricultural soils. The algae specimens and soil samples were collected from paddy field of Bo taug kone village, Patheingyi Township during the months from June 2022 to January 2023. A total of twenty-four species belonging to eleven genera of division Cyanophyta were identified according to their morphological characteristics. The soil pH, electrical conductivity, nitrogen, phosphorus, potassium, moisture and soil texture were measured. Nitrogen fixation blue green algae such as Anabaena ambigua, A. orientalis, A. variabilis, Cylindrospermum muscicola, Nostoc ellipsosporum, N. microscopicum, N. commune, N. paludosum, N. spongiforme, Gloeotrichia raciborskii and others blue green algae species were found in the paddy field soil. The present study concludes that the blue green algae enhances soil fertility and is capable of nitrogen fixation for agriculture soil.	2025
2588	Hnin Yu Maw1, Nwe Nwe Yi2, Swe Swe Linn3	A STUDY ON POLLEN MORPHOLOGY OF SAPINDALES AND BRASSICALES FROM MANDALAY AND BAGO REGIONS	The pollen morphology of 10 species belonging to 10 genera of 5 families in Sapindales and Brassicales were studied. The specimens were collected from Mandalay and Bago Regions from May 2018 to December 2020. The collected species were 6 species of Sapindales and 4 species of Brassicales. The morphological characters of pollen grains of each species were also studied. The pollen grains of all species examined in this study are generally monads. The types of pollen grains were colpate and colporate. One, nine species were colpate and colporate respectively. The shapes of pollen were oblate spheroidal, spheroidal, suboblate and subprolate. The smallest pollen (9.0 � 14.0 �m) was found in Limonia acidissima L. and the largest pollen (30.0 � 32.6 �m) was observed in Hypselandra variabilis (Collett & Hemsl.) Pax & K. Hoffm. The sculpture patterns of pollen grains were psilate in 1 species, reticulate in 4 species and obscurely reticulate in 5 species. The pollen photomicrographs of each species were observed by polar view and equatorial view. The pollen morphology provides for identification and future systematic research work of orders Sapindales and Brassicales.	2025
2589	Phyo Wai Khaing1, Nu Yin Aye2, Thet Thet Mar3	EFFECT OF CULTURE CONDITION ON PROTEASE PRODUCTION OF PROTEOLYTIC FUNGI FROM BEAN CROP SOIL AND PADDY MILL SOIL	The present study is based on the characterization of protease producing fungi from the bean crop soil in Vegetable and Fruit Research Development Centre (Hlegu Township) and paddy mill soil in Daik-U Township. Screening of fungi was done by employing skim milk agar (SMA) plating technique at room temperature and the zone of proteolysis was noted. The two isolates that gave high positive protease activity results in screening identified as Penicillium sp. (V2) and Cladosporium sp. (D12) by analyzing the macroscopic and microscopic morphological criteria. These fungi were used for protease production via submerged fermentation (SmF). Effects of four different fermentation media (Medium I, Medium II, Medium III and Medium IV), different fermentation period, 1% carbon sources, 1% nitrogen sources, different substrate and casein substrate concentration on protease production were investigated. The highest enzyme activity was obtained with production medium II at four days with 1% casein as best substrate, 1% glucose as carbon source and yeast extract as nitrogen source.	2025
2590	May Myat Theingi Kyaw1, Kathy Myint2	ISOLATION OF ENDOPHYTIC FUNGI FROM THE LEAVES OF STEPHANOTIS VOLUBILIS (L.F.) S. RUESS, LIEDE & MEVE AND THE STUDIES OF ANTIMICROBIAL ACTIVITIES & SOME FERMENTATION PARAMETERS	Endophytes are microbes (mostly bacteria and fungi) present in plants asymptomatically. Endophytic fungi are known to produce a wide range of metabolites of pharmaceutical importance. This research paper deals with the endophytic fungi isolated from the leaves of Stephanotis volubilis (L.f.) S.Ruess, Liede & Meve. It is a well-recognized medicinal plant in traditional medicine. A total of 31 fungal species were isolated from the leaves. The morphology of endophytic fungi was studied and antimicrobial activities of these fungi were carried out by using paper disc diffusion method on six test organisms. All isolated fungi showed antimicrobial activities on Bacillus pumilus, Bacillus subtilis, Candida albicans, Micrococcus luteus, Pseudomonas sp., Staphylococcus aureus. According to the results, MM-25 showed the best antimicrobial activity against six test organisms. As a result of morphological and microscopical characters, this strain may be Rhizoctonia sp. In the study of fermentation parameters, the age of seed culture and the size of inoculum were investigated under two different states such as static and shaking. It was resulted that three-day old cultures provided the highest antimicrobial potentials on six test organisms. Moreover, 25% size of inoculum in fermentation was also observed the best antimicrobial activity on Staphylococcus aureus in both static and shaking states.	2025

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