{"title":"Influence of Seaweed (Padina antrillarum) Extract Foliar Application on Growth and Flowering of Roses Variety ‘Local’","authors":"M.A.T.R. Kularathne, S. Srikrishnah, S. Sutharsan","doi":"10.3126/ijasbt.v9i4.36010","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i4.36010","url":null,"abstract":"The Seaweed (Padina antrillarum) abundantly found in the coastal region of Eastern Sri Lanka. Seaweed contains a wide range of nutrients and hormones for plant growth. An experiment was conducted at the Crop Farm, Eastern University, Sri Lanka to assess the effects of seaweed (Padina antrillarum) extract on the flowering of roses var. ‘Local’ from July to September 2020. Four treatments were used in this experiment viz. 10% (T1), 20% (T2), and 30% (T3) seaweed extracts with control treatment (T4). Treatments were applied at once-a-week interval. The experimental design was a completely randomized design with three replications. All other management practices were followed uniformly. Measurements were done at once a month. Collected data were analyzed. The higher performances in measured parameters (plant height, leaf area, plant biomass, number of flowers per plant) were observed in T2. It showed that once a week application of 20% seaweed liquid extract had the potential to increase growth and flower production in roses. It might be due to the presence of nutrients and the growth hormones in seaweed extract and optimum concentration of seaweed extract received by plants at T2. In T1 and T3, plants received sub-optimum and higher concentration respectively. It could be the reason for the lowest performances in these treatments. From this experiment, it could be concluded that once a week application of 20% seaweed liquid extract of Padina antrillarum is suitable to increase flowering in roses of treatment tested. \u0000 ","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79573754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of Trap Crops for The Wheat Bug, Nysius huttoni Management: A Cage Study","authors":"S. Tiwari","doi":"10.3126/ijasbt.v9i4.41893","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i4.41893","url":null,"abstract":"The wheat bug, Nysius huttoni, is an endemic New Zealand insect pest. Its feeding can seriously reduce crop establishment in forage A cage study was conducted in Lincoln University, New Zealand to evaluate the pest’s host preferences on four plant species. Kale plants (Brassica oleracea) were used as a potentially susceptible control and other four trap plants were tested to evaluate as potential trap-plants. These were: Lobularia maritima (alyssum), Triticum aestivum (wheat), Coriandrum sativum (coriander) and Trifolium repens (white clover). The alyssum plant was more attractive to the wheat bug. The survival rate and preferences of the wheat bug was significantly better than other four plants. The deployment of such flowering trap crops can potentially trap the wheat bug and also provide multiple ecosystem services (ES) in an agro-ecosystem. The findings can be used to develop the wheat bug management protocol and also potentially provide ecosystem services in brassica fields.","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83694290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Regmi, Tirtha Raj Binadi, Sarb Narayan Jha, Rajib Kumar Chaudhary, B. R. Poudel, S. K. Gautam
{"title":"Antibacterial and Antioxidant Studies of Green Synthesized Silver Nanoparticles using Azadirachta indica (Neem) Leaf Extract","authors":"B. Regmi, Tirtha Raj Binadi, Sarb Narayan Jha, Rajib Kumar Chaudhary, B. R. Poudel, S. K. Gautam","doi":"10.3126/ijasbt.v9i3.39069","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.39069","url":null,"abstract":"Silver nanoparticles (AgNPs) have been synthesized by green synthesis using Azadirachta indica leaf extract as both reducing and stabilizing agent. Synthesis of colloidal AgNPs was monitored by UV- visible spectroscopy. The UV- visible spectrum showed a peak at 455 nm corresponding to the plasmon absorbance of the silver nanoparticles. Crystallite structure of silver nanoparticles was studied using X-ray diffraction (XRD) analysis which revealed the face-centered cubic structure (FCC) with average particle size of 8.9 nm, calculated using Debye-Scherrer’s equation. Transmission electron microscopy (TEM) image revealed the agglomeration of small grain with particle size ranging from 2 to 14 nm. FCC crystalline nature was also evident from selected area electron diffraction (SAED) analysis. High purity of as-synthesized AgNPs was analyzed using energy dispersive X-ray (EDX) spectroscopy. Band gap energy was calculated to be 2.7 eV from UV- Visible spectra. 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay was stabilized by AgNPs which reveals its antioxidant efficacy. Well diffusion method showed 7 mm to 12 mm zone of inhibition (ZOI) against Gram-positive and Gram-negative bacteria, respectively confirming the antibacterial potential of AgNPs.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 220-226.","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"171 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76633598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mycotoxins in Foods: Occurrence, Challenges and Management in Context of Nepal","authors":"Prateek Joshi, T. Maneeboon, Chayanee Cheerakupt","doi":"10.3126/ijasbt.v9i3.38758","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.38758","url":null,"abstract":"Incidence of mycotoxins in principal foods and grains is a major threat to achieving food safety but still remains one of the most underrated and ignored sources for food borne diseases, particularly in less developed countries. Furthermore, food insecurity together with ineffective government regulations and environmental conditions that favor fungal proliferation and toxin production merge together to make the people’s life even harder in countries like Nepal. Apart from wasting huge quantities of food every year, mycotoxins are associated with various acute and chronic health disorders including carcinogenic, mutagenic, estrogenic, digestive, vascular and nervous defects. Staple diets in less developed countries like Nepal are largely based on crops like maize, susceptible to mycotoxins which may ultimately lead to chronic health problems in large population. Although there is an immediate need to address the food safety challenges caused by mycotoxin contamination in cereal grains, studies so far in Nepal has been conducted mainly in aflatoxins in limited commodities only and very less efforts have been made to manage and mitigate the problems caused by mycotoxins in Nepal. Therefore, a thorough control of mycotoxins in overall food chain is essential to safeguard the health of the population which could be achieved by implementing stricter regulations, modern and scientific post-harvest operations, effective monitoring programs and raising necessary awareness among stakeholders.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 152-159.","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83848228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pramod Gairhe, S. Bhandari, Hom Prasad Sitaula, Beautina Karki, H. Manandhar
{"title":"In Vitro Evaluation of Effect of Different Essential Oils in Management of Post-Harvest Fruit Rot of Banana (Musa Paradisiaca) Caused by Colletotrichum spp","authors":"Pramod Gairhe, S. Bhandari, Hom Prasad Sitaula, Beautina Karki, H. Manandhar","doi":"10.3126/ijasbt.v9i3.38614","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.38614","url":null,"abstract":"A study was conducted to evaluate the in vitro efficacy of different essential oils in the management of post-harvest fruit rot of banana. It was carried out in completely randomized design (CRD) with three replications and six treatments at Nepal Plant Diseases and Agro Associates (NPDA). The each of six treatments: cinnamon oil (Cinnamomum verum), mustard oil (Brassica oleracea), castor oil (Ricinus communis), neem oil (Azadirachta indica), coconut oil (Cocos nucifera) and control were used at concentrations 200ppm, 500ppm and 1000ppm respectively. The radial growth of mycelium (mm) and percent growth inhibition (%) of Colletotrichum spp. was recorded. The decrease in the radial growth and increase in the percent growth inhibition was found in all the treatments except control as their concentration was increased, in which the lowest radial growth and the highest percent growth inhibition was found at 1000 ppm concentration. At 1000 ppm concentration, cinnamon oil shows the lowest radial growth and the highest percent growth inhibition (1.67mm and 98.15%) followed by mustard oil (54.00mm and 40.00%), neem oil (55.17mm and 38.70%), castor oil (55.83mm and 37.96%), coconut oil (61.17mm and 32.04%) and control (90mm and 0.00%) respectively.Thus, cinnamon oil is considered as a good essential oil in regards to a management of post-harvest disease of banana.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 187-192.\u0000 \u0000 ","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89536147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Integrated Nutrient Management (INM) in Soil and Sustainable Agriculture","authors":"Sangam Panta, Dipika Parajulee","doi":"10.3126/ijasbt.v9i3.39275","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.39275","url":null,"abstract":"The world vision of no hunger target, food security, and zero poverty followed by raising standards of living of rural people through agricultural transformation is the greatest challenges faced by the agricultural planners worldwide. Due to the alarming state of population growth and cultivable land scarcity, change in agronomic practices which could bring a significant effect on crop production and productivity is urgently needed. The concept of using different sources of plant nutrients combined to check nutrient depletion, maintain soil health, and crop productivity, called INM, has a bright solution in this area. Recently several researchers introduced that integrated use of inorganic fertilizers, organic fertilizers, green manure, and bio-fertilizers is becoming an effective practice not only for increasing crop production and productivity but also for the better crop and soil health. In addition, INM helps to increase the activity of soil microorganisms and improves the soil physical, chemical and biological properties. So, INM create an economic eco-friendly environment by reducing the dependence on inorganic chemical fertilizers and improving the soil fertility, optimizing crop yield, maximizing profitability and ultimately making the agriculture sustainable. Lastly, INM is one of the good agricultural practices which needs to be followed by every conscious individual in order to maintain soil health, nutrient balance and to make the agriculture and environment more sustainable. \u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 160-165 ","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88739707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Landrace Diversity and Production Systems of Cowpea (Vigna unguiculata L. Walp.) in Southern Chad","authors":"Nadjiam Djirabaye","doi":"10.3126/ijasbt.v9i3.39869","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.39869","url":null,"abstract":"In Chad, cowpea (Vigna unguiculata (L.) Walp.), is increasingly becoming a cash crop. The objective of this work is to assess the varietal diversity, analyze the traditional management of landraces and the production systems of cowpea in southern part of Chad. An inventory and an ethnobotanical survey was conducted through a participatory approach in 17 villages corresponding to two agro ecological zones. Thirty-four vernacular names and 45 landraces are inventoried. On average, 2 names are assigned per village. The number of landraces varies from 4 to 13 with an average of 9.00 per region and 2.70 per village. The highest diversity is observed in Mayo Kebbi. Sixteen morphotypes have been identified and their distribution varies according to the agro ecological zones. Productivity (31.10 %), taste (25.92 %) and grain size (18.34 %) are the farmer main preferred criteria. Farmers use leaves (47 %), pods (29.50 %) and seeds (14.75 %) to identify landraces. Cowpea cultivation is practiced on small areas and in intercropping system (78.60 %). Conservation of seeds (36.07 %), low fertility of the soils (27.85 %) and drought (17.77 %) were the main production constraints. Cowpea is stored mainly in traditional granaries (34.96 %) and on racks (22.93 %). For seeds treatment, farmers use mainly traditional means (32.37 %) and chemical products (6.67 %). Several cowpea-based dishes are identified. Cowpea has also therapeutic virtues. To improve cowpea production, appropriate actions must be considered against the constraints inventoried. The interesting landraces should also be used in a breeding program.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 176-186.","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87676223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prevalence of Thyroid Disorder in Residents of Western Region of Nepal","authors":"Preeti Sharma, Namarata Thapa Magar, Mahesh Bk","doi":"10.3126/ijasbt.v9i3.39863","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.39863","url":null,"abstract":"Thyroid disorder, such as goiter, hypothyroidism, and hyperthyroidism, are leading health problems in Nepal. Owing to geographical and environmental factors, iodine deficiency is prime cause of thyroid disorder. The objective of study to estimate the prevalence of thyroid disorder in residents of western region of Nepal (Pokhara valley). Materials & Methods: The study design was hospital based retrospective study. The data of T3, T4, TSH was collected from subject visiting Department of Biochemistry at Gandaki Medical College Teaching Hospital and Research Centre, Nepal. The samples was collected, serum was separated and thyroid hormones was assayed by Enzyme linked Immunosorbent assay kit from RFLC (India). Result: The total study population was 2248 cases of which 580 (male) and 1668 (female) were enrolled in the study. The prevalence of thyroid disorder was 22.42 % in western region. Subject with hypothyroidism was 12.41% (279) & subject with hyperthyroidism were 10.41% (234) respectively. Female subject of age (15-44) years had a hypothyroidism, i.e. 52.83% (112). About 73.15% (109 out of 149 subjects) were female cases suffered from subclinical hypothyroidism. The thyroid disorder found most prevalent in reproductive age group in female residents in our study. Conclusion: Hypothyroidism is prevalent in all age group of female residents of western region of Nepal.Our study conclude that hypothyroidism and subclinical hypothyroidism found more prevalent in reproductive age group in residents of western region of Nepal.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 169-175\u0000 ","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73891161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficacy of Nitrogen on Growth and Yield of Radish (Raphanus sativus L.) from Different Sources of Organic Manures","authors":"K. Pant, B. Oli","doi":"10.3126/ijasbt.v9i3.39120","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i3.39120","url":null,"abstract":"For the quantitative evaluation of the efficacy of Nitrogen through different plant nutrient sources in the growth and yield of radish, the field experiment was conducted from March 2020 to June 2020 in an Inceptisol with sandy loam soil of the research field of G. P. Koirala College of Agriculture and Research Centre, Gothgaun, Morang, Nepal. The experiment was carried out in a Randomized Complete Block Design with eight treatments (Biogas Byproduct, Poultry Manure, Goat Manure, Farmyard Manure, Vermicompost, Packaged Organic Manure, Recommended Dose of Chemical Fertilizer, and Control) and four replications. Forty Day (released in 1994 AD) variety of radish was used as a test crop. The recommended 100 kg N per hectare was supplied from each treatment, calculated based on the nitrogen content of each nutrient source. Results showed that there was a significant difference in almost all studied parameters from all treatments over control (P≤ 0.05). The highest total fresh biomass yield (123.415 Mt/ha) and highest delta fresh shoot yield (22.806 Mt/ha) were recorded from the application of a recommended dose of fertilizer, and the highest delta fresh root yield (30.127 Mt/ha) was obtained from the application of FYM. The experiment suggests that the application of FYM significantly increased root yield and was positively correlated with other parameters, which might be a good alternative for chemical fertilizers.\u0000Int. J. Appl. Sci. Biotechnol. Vol 9(3): 203-212.","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79899783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"COVID-19 Pandemic Knowledge & Perception: A Quiz Based Survey on Students in India","authors":"A. Pathania, A. Saini, S. Tandon","doi":"10.3126/ijasbt.v9i2.36095","DOIUrl":"https://doi.org/10.3126/ijasbt.v9i2.36095","url":null,"abstract":"Emergence and spread of COVID-19 pandemic which is caused by novel coronavirus (SARS-CoV-2) is threatening the whole world. The virus originated in bats and was transmitted to humans through unknown intermediate animal host in Wuhan, Hubei province, China in December 2019. Coronavirus disease 2019 (COVID-19) outbreak needed to be put to an end and we can do this by understanding the situation better. It was of prime importance that masses particularly youngsters should have maximum knowledge of this disease in detail to check its rapid spread. Thus, this study aimed to investigate the knowledge and perceptions of students about COVID-19. With this kind of awareness, each respondent updating one’s scientific realization about this deadly virus and how to cope with this. For this purpose, an online survey was conducted using a semi-structured questionnaire using a multiple-choice questions method. A total of 1,111 responses were received. total 840 (75.60%) students from different colleges/universities and 271 (24.39%) school students have participated in this survey. The responders had a moderate level of knowledge about the COVID-19 infection and adequate knowledge about its preventive aspects. The attitude towards COVID-19 showed students' willingness to follow government guidelines on quarantine and social distancing. There is a need to intensify the awareness and address the issues of safety of students about this COVID-19 pandemic as this is still spreading at an alarming rate in India. \u0000Int. J. Appl. Sci. Biotechnol. Vol 9(2): 133-137. \u0000 ","PeriodicalId":13876,"journal":{"name":"International Journal of Applied Sciences and Biotechnology","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91261469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}