Pakistan journal of biotechnology最新文献

{"title":"ARTIFICIAL INTELLIGENCE TECHNIQUES FOR THE PEST DETECTION IN BANANA FIELD: A SYSTEMATIC REVIEW","authors":"Shahzad Nasim, Munaf Rashid, Sidra Abid Syed, Imtiaz Brohi","doi":"10.34016/pjbt.2023.20.02.746","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.746","url":null,"abstract":"Purpose: This systematic review details the diseases that influence banana production and their detection. A common method for identifying plant diseases in plants is image processing. Segmentation is one method for using image processing to establish medical diagnosis. The main objective of this study is to identify, categorize, and evaluate several image processing techniques used to control pests in a banana crop. Methodology: An electronic search was conducted using relevant keywords on openly available databases including IEEE Xplore, PubMed, Science Direct, and Google Scholar. 104 items were discovered by the search engine. After removing the duplicates, there were 56 research papers remained, but 22 of them were discarded after title and abstract checks since they did not address insect detection in banana fields. Results: 22 papers that come under the headings of image classification, AI/ML, deep learning, and mobile applications provide usable and reliable detection techniques in this systematic review","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135004268","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":"BARKAT: A NEW HIGH FODDER YIELDING OAT (AVENA SATIVA L.) VARIETY WITH BETTER NUTRITIONAL VALUE","authors":"Imtiaz Akram Khan Niazi, Muhammad Aslam, Muhammad Nadeem, Muhammad Shakeel Hanif, Sikandar Hayat, Raees Ahmed, Muhammad Jamil, Abdul Basit, Ahmad Hussain, Ahmad Raza, Ghulam Ahmad, Aftab Ahamd Khan, Muhammad Tanveer Ahmad Kalyar, Suleman Raza","doi":"10.34016/pjbt.2023.20.02.790","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.790","url":null,"abstract":"Oats are utilized primarily as feed for domestic animals and is also fourth most important cereal crop of the world. The Fodder Research Center, Sargodha, used conventional breeding techniques to generate the general cultivar \"Barkat\" of oat (Avena sativa L.). It will be launched in 2021. The \"FRI-01\" commercial cultivar is a highly uniform off spring of the crosses between parental accessions (No. 970 and No. 288) and subsequent selections in multiple segregating populations (F2 through F6) using pedigree procedures. The cultivar outperformed the commercial check \"Sargodha-Oat 2011\" by 10% and 12.76% in forage yield during 2014-2015 and 2015-2016 station trials, respectively, and by 13.32% in fodder yield during 2016-17 at the zonal level. It is a late-maturing green cultivar that produces light brown seed and has a tall, multi-tillering plant form. It gave 7.13% higher fodder yield during 2017-18 and 22.38% increase over check variety during 2018-19 in national trials. Forage qualities include high palatability (85%), protein content (10.6%), and tolerance to biotic and abiotic stresses. The flowers bloom roughly ten days after the reference variety. Barkat (FRI-01) sown on 1st October and 15th October gave highest fodder yield in comparison with other tested sowing dates while maximum green fodder yield 87 ton ha-1 at 80 kg per ha seed rate and 30 cm row spacing. Barkat (FRI-01) will be extremely valuable cultivars in both irrigated and desert region of Punjab Province due to its high yield, great palatability, higher protein contents than standard check, and tolerance to biotic and abiotic stress. Also, the cultivar can serve as a parental line in future efforts to enhance oat genetics.","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135004266","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":"MACHINE LEARNING TECHNIQUES APPLIED IN SURFACE EMG DETECTION- A SYSTEMATIC REVIEW","authors":"Sidra Abid Syed, Hira Zahid, Saifullah Bullo, Sarmad Shams, Sania Tanvir, Syed Jamal Haider Zaidi, Shahzad Nasim","doi":"10.34016/pjbt.2023.20.02.804","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.804","url":null,"abstract":"Surface electromyography (EMG) has emerged as a promising clisnical decision support system, enabling the extraction of muscles' electrical activity through non-invasive devices placed on the body. This study focuses on the application of machine learning (ML) techniques to preprocess and analyze EMG signals for the detection of muscle abnormalities. Notably, state-of-the-art ML algorithms, including Support Vector Machines (SVM), k-Nearest Neighbors (KNN), Artificial Neural Networks (ANN), Random Forests (RF), and Naive Bayes (NB), have been harnessed by researchers in the biomedical sciences to achieve accurate surface EMG signal detection. Within this paper, we present a meticulously conducted systematic review, employing the PRISMA method to select relevant research papers. Various databases were thoroughly searched, and multiple pertinent studies were identified for detailed examination, weighing their respective merits and drawbacks. Our survey comprehensively elucidates the latest ML techniques used in surface EMG detection, offering valuable insights for researchers in this domain. Additionally","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"383 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135004269","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":"COMPARATIVE STUDY OF ROOTSTOCKS AND THEIR EFFECTS ON STIONIC ESTABLISHMENT OF THE MANGO SEEDLINGS","authors":"Ishtiaque Hussain Kubar, Noor un nisa Memon, Naseem Sharif, None Memoona Islam Majeedano, None Muzamil Farooque Jamali, Hube Ali Magsi, Farha Feroz Abbasi, Komal Aslam","doi":"10.34016/pjbt.2023.20.02.778","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.778","url":null,"abstract":"To explore the quality rootstock which impart better stionic establishment of the mango seedlings, we studied the comparative effect of scion and rootstock using three mango scion varieties (Sindhri, Chaunsa and Neelum) grafted on three rootstocks i.e. Ratam, Pado and Sindhri. Parameters including seed germination (%), seedling height (cm), leaves seedling rootstock-1, seedling vigor index (SVI), fresh biomass of shoot and roots (g), dry biomass of shoot and roots (g), chlorophyll content (rg), rootstock diameter (mm), scion diameter (mm), stionic ratio, leaves graft-1 and sturdiness quotient were studied. Results showed the best seed germination (88.33%), seedling vigor index (5158.74), and sturdiness quotient (3.89) in Pado rootstock. However maximum fresh biomass of shoot (20.67 g), fresh biomass of roots (16.2 g), dry biomass of shoot (12.65 g), dry biomass of roots (8.33 g) and scion diameter of the rootstocks were observed in Sindhri rootstocks. Regarding grafting data, the best stionic ratio (0.93) was observed from the scion and rootstock combination of Neelum and Pado rootstock. It was concluded that Pado rootstock performed better in terms of seedling rootstock and for successful stionic establishment of the mango seedlings","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135051315","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":"Effect of PGPR and Biogas Slurry on Growth and Yield Parameters of Pea under Salt Affected Conditions","authors":"Nafeesa Muslim, Naseem Akhtar, Sumreen Saddiq, Muhammad Imran, Kiran Yousaf, Naseem Sharif","doi":"10.34016/pjbt.2023.20.02.792","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.792","url":null,"abstract":"Salt stress is a significant abiotic plant growth restrictive factor; it is becoming a severe environmental threat. The microorganism in the rhizosphere especially fungi and bacteria can increase the plant production under stress conditions both by direct and indirect mechanisms. A field experiment was conducted to evaluate the potential of biogas slurry and plant growth promoting rhizobacteria (PGPR) at different levels of salinity to improve the growth and yield of pea (Pisum sativum ). In field experiment biogas slurry @ 600 kg ha-1 and 800 kg ha-1 and PGPR strain “bacillus subtilis” was applied along with 6 dS m-1 and 8 dS m-1 levels of salt stress in addition to recommended doses of nitrogen, potassium and phosphorus fertilizer. The results revealed that the combined application of PGPR and biogas slurry under normal soil conditions increased shoot length by 30.27% while under saline conditions it increased up-to 65.27%. Soil salinity reduced root length up-to 79.155% at 8 dS m-1 as compared to control. Application of biogas slurry improved 5.93% root length under salt stress as compared to respective control, on the other hand the combined application of PGPR and biogas slurry increased root length by 33.128% under normal conditions and under salinity stress it increased by 73.53%.Soil salinity reduced chlorophyll content 36.54% of pea decrease under salt stress, the application of biogas slurry under the same condition improved 29.26% chlorophyll content of pea but the combined application of PGPR and biogas slurry enhanced the chlorophyll contents 4.68% as compared to solely application of biogas slurry. The results clearly indicated that the combined application of PGPR and biogas slurry is the best source to enhance the growth and yield of pea under normal as well as under salinity stress.
 Key Words: PGPR, Bio gas, Salinity, Peas, Growth, Yield.","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"1204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135051314","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":"BIOCHEMICAL CHARACTERIZATION OF STEVIA ESSENTIAL OIL THROUGH DIFFERENT DRYING METHODS AND SOLVENTS","authors":"Sehrish Ibrar, Najma Yousaf, Umer Habib, Tanveer Hussain, Hassan Shahbaz, Irfan Ali, Syed Muiz Mehdi Naqvi, Tanveer Ahmad, Sana Asghar","doi":"10.34016/pjbt.2023.20.02.781","DOIUrl":"https://doi.org/10.34016/pjbt.2023.20.02.781","url":null,"abstract":"Essential extracts from plants have been used as a food and medicinal cure since ancient times. Some plants have a good portion of carbohydrates e.g., stevia is being used as an excellent alternative to synthetic compounds i.e., sugar. Therefore, it is important to chemically characterize these nutrients and study their various biological properties. This research aimed to extract essential oil from stevia plant by using Soxhlet apparatus and analysis of nutrients present in the oil were performed by high performance liquid chromatography system i.e., HPLC. Two extraction solvents i.e., hexane (60/40; v/v) and ethanol (70/30; v/v) were used to compare the concentration of bioactive compounds. The plant material was subjected to two drying methods i.e., air dry and oven dry. 10 major compounds were identified as a result of the chemical characterization, in which steviol bioside i.e., 317.01615 (m/z) and stevioside (803.2189 m/z) that is obtained from oven drying using ethanol as extraction solvent were slightly greater than steviol bioside i.e., 315.2183 (m/z) and stevioside i.e., 802.8531 (m/z) obtained from oven drying using hexane as extraction solvent. Likewise, plant material subjected to air dry with ethanol as extraction solvent resulted in greater yield of steviol bioside i.e., 317.0717 (m/z) and stevioside i.e., 803. 3179 (m/z) as compared to steviol bioside i.e., 315.1104 (m/z) and stevioside (802.3185 m/z) that is obtained by air dry using hexane as a solvent. While using fresh leaves the concentrations of compounds i.e., stevioside (799.2187 m/z), dulcoside A (787.3759 m/z) and steviol (639.4189 m/z) obtained by using ethanol were greater than concentration of compounds obtained by hexane. While Rebaudioside A (965.3213 m/z), Rebaudioside B (803.3717 m/z), Rebaudioside C (940.4276 m/z), Rebaudioside D (1066.4763 m/z), Rebaudioside E (964.4273 m/z) and Rebaudioside F (789.3857 m/z) obtained by using hexane as extraction solvent were greater as compared to concentration of compounds obtained by using ethanol. Based on these results, we can suggest that Stevia rebaudiana Bertoni can be a natural source of antioxidant, anti-inflammation and antimicrobial properties. It can also be considerd as a potential source of essential oil. These results suggest that the leaves of S. rebaudiana Bertoni can serve as therapeutic agents or in prevention of certain inflammatory diseases through their radical-scavenging capacities.","PeriodicalId":485309,"journal":{"name":"Pakistan journal of biotechnology","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135051312","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}