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Relationship between concentration of ATP in latex and yield potential in seedlings of Hevea brasiliensis and its implications in breeding
Get PDFVariability in cooking time, iron and zinc content in common bean (Phaseolus Vulgaris L.) genotypes
Get PDFProlonged cooking time leads to structural changes at the grain cellular level, resulting in loss of nutrients such as iron (Fe) and zinc (Zn) which are among the main nutrients important in addressing micronutrient malnutrition. The aim of this study was to evaluate the diversity of cooking time, Fe and Zn content in a total of 152 common bean (Phaseolus vulgaris) genotypes from around Eastern Africa, in order to identify short cooking genotypes with high Fe and Zn content. Field trials were conducted at CIAT-Uganda research station over two seasons in 2016. Cooking time was estimated using an automated Mattson cooker at CIAT-Uganda while Fe and Zn content was determined using XRF analysis at Rwanda Agricultural Board (RAB) in Rubona. A wide variability was evident from the test genotypes both for cooking time and mineral concentration. Cooking time exhibited a continuous distribution ranging from 35-100 minutes for the first season and 43–122 minutes for the second season. Seventy-three percent of the test genotypes had Fe levels higher than the low Fe check, CAL 96 (55mg/kg) which is popularly known as ‘Nambale’ and a popular commercial variety in Uganda. A total of 15 genotypes (Amahunja, Awash melka, Bihogo, CAB 2, ECAPAN021, G858, Icaquimbaya, KK20, NABE12C, NABE4, NABE6, ROBA-1, RWR1873, RWV3006) were consistent in short cooking time for the two seasons and had a Fe content above the low Fe check (CAL96 – 55mg/kg). A high correlation (r = 0.71) was observed between Fe and Zn whereas a low correlation between cooking time and Fe (r = -0.04) and Zn (r = 0.04) was observed. Great variability was evident for both traits indicating possible improvement by breeding and thus the possibility of having short cooking common bean genotypes with high Fe and Zn content
Interactive effect of biocontrol agents in the management of Fusarium rot in cardamom and its impact on plant defense mechanism: Biological control of Fusarium rot in cardamom
No full textCardamom plantations are subjected to constant threat due to the Fusarium rot disease caused by Fusarium oxysporum Schlecht which is pronounced during summer months. The current study deals with the identification of an effective and ecofriendly management practice for the disease through the use of biocontrol agents. Survey conducted between February and May 2019 revealed maximum disease severity and incidence in Pampadumpara panchayat of Nedumkandam block (84.40% and 100%) and minimum in Erattaar panchayat of Kattappanablock (50.40% and 60.00%). A pot culture experiment was conducted to study the effect of three bioagents (Glomus fasciculatum, Trichoderma asperellum and Pseudomonas fluorescens) individually as well as in combinations. Root inoculation of G. fasciculatum with basal application and spray with P. fluorescens as well as root inoculation of G. fasciculatum along with basal application of T. asperellum and P. fluorescens spray were identifiedto be effective against the disease. Disease suppression by the above bioagents was facilitated by reduced pathogen antagonist ratio in the soil, high level of mycorrhizal colonization in the roots and enhanced biochemical activity of defense enzymes like peroxidase, poly phenol oxidase and phenylalanine ammonia lyase in the plants
Comparative analysis of nutraceutical potential of turmeric grown in different areas of Almora, Uttarakhand: Nutraceutical potential of turmeric
No full textCurcuma longa (Turmeric) is an important medicinal condiment, which is known for its unique phytochemicals and biological activities. Seven turmeric powder samples obtained from five different locations of Almora District, Uttarakhand were compared for their nutraceutical potential in terms of proximate composition, phytochemical constituents such as phenolics and flavonoids, along with their antioxidant potential, curcumin, minerals etc. The commercial brand was taken for comparison purposes. Total fat was found highest in Jamradi sample (10.07%) while lowest was found in commercial sample (2.72%). The curcumin (5.13%), total phenolic (2.12 mg GAE 100 mg-1 DW) and flavonoid contents (5.43 mg QE 100 mg-1 DW) were highest in the Tani turmeric sample. DPPH activity of Dharad and Market samples were quite comparable (0.24 mg AAE 100 mg-1 DW), and FRAP activity was highest for Hawalbagh sample (0.44 mg AAE 100 mg-1 DW). Total fat, total moisture, phytic acid and oxalate content were identified as main factors causing difference among the turmeric samples
Assessment of physical and mental well-being among students of Bangladesh during COVID-19 Pandemic
Get PDFThe outburst of COVID-19 influenced the lives of all segment of society as people were requested to self-quarantine in their homes to stop the outspread of the virus. The lockdown had consequential impacts on mental health, triggering psychological problems encompassing frustration, stress, and depression. The outbreak of Covid-19 has significantly affected the lives of all parts of the society. One of the most instant changes launched was the closure of educational institutions to decelerate the spreading of the virus. Students no longer had availability of institution-based physical activities such as physical education, recess, and walking to/from universities/colleges/school. Inadequate physical activities and enormous sedentary behavior amid students exhibits a noteworthy problem because health behavior patterns can result in heightened risk for a number of hazardous health conditions (e.g., overweight/obesity, type II diabetes, and metabolic syndrome) in later. The objective of this study was to explore the pervasiveness of physical and mental health condition among Bangladeshi students during the COVID-19 pandemic. It also focuses on recognizing the stimulus of various states of physical and mental conditions throughout COVID-19 pandemic. The cross sectional data was gathered by means of interviews or self-responses among the university students from various districts of Bangladesh on July to August 2020. The study was performed with structured questionnaire. To reduce threats of Covid-19 infection, in this investigation, participants were interviewed over telephone instead of face to face interaction. In order to explore the effects of this pandemic on the lives of students, we performed a survey in which a total of 576 participants were participated. In this survey, among them 377 (66%) are male and 197 (34%) female. It was discovered that 92% of participants appreciate participating in physical activities & rest of them (8%) don’t like to participate in physical activities. In addition, our study also revealed 46% of the students having trouble in sleep and 45% students feels concentration problem. The findings of this study show that greater numbers of the students are not in sound physical or mental conditions. They are bored, helpless, anxious and depressed than previous. This study shows that the mental conditions of female students are more affected by Covid-19 compared to male students. 82% of female students are stressed about their study, future life and so on. 46% female students are feeling helpless, 61% become upset and 60% feel bored during lockdown and close of education institution. COVID-19 is striking threat both on physical and mental health since its outbreak. During this challenging time, it is necessary to continue taking care of physical and mental health. 
Diffuse scattering model for human brain wave (Alpha) propagation prediction during meditation inside a temple, through ray tracing, a hypothetical study
Get PDFElectromagnetic radio waves have been propagating for billions of years through the universe since the beginning of time. Electromagnetic radio wave propagation and the communication revolution it spawned, however are products of the twentieth century. Radio propagation in a particular environment is a complex, multipath phenomenon which involves several different mechanisms. According to a traditional, simplified approach, two major urban propagation mechanisms are identified over-roof-top (ORT) or vertical propagation (VP), where one major radial path undergoes multiple diffractions on building tops, and lateral propagation (LP) where several rays reflect/diffract all vertical building walls/edges according to the geometrical Optics (GO) rules before reaching the receiver
Actual evapotranspiration evaluation based on multi-sensed data
Get PDFThe importance of active and passive remote sensing data integration appears strongly on cloudy days. The lack of passive remote sensing data on cloudy days prevents the benefit of large-scale satellite data in cloudy areas, while the advantage of active remote sensing, it could penetrate the cloud and collect data underneath the cloud. The main objective of this paper is to determine the benefits of combining active and passive remote sensing data to detect actual evapotranspiration (ETa). Sentinel-1 radar data represents active data, while Landsat-8 represents passive data. Multi-date data for Landsat-8 and Sentinel-1 were used during the 2016 summer season. The characteristic soil texture in the study region is clay. The meteorological data were used to estimate ETo based on the FAO-Penman-Monteith (FPM) process, while the Lysimeter data were used to test the estimated ETa. Landsat-8 data are used to measure the Normalized Difference Vegetation Index (NDVI) and the Crop Water Stress Index (CWSI). Crop Coefficient (Kc) is calculated on the basis of NDVI. The CWSI, Kc, and ETo were then used to determine ETa. Backscattering (dB) C-band Synthetic Aperture Radar (SAR) data extracted from the Sentinel-1 satellite was correlated with Kc and used to estimate ETa. The Root Mean Square Error (RMSE) reported relevant results for active and passive satellite data separately and the combination process. For Sentinel-1, Landsat-8 and combination methods, the RMSE reported 0.89, 0.24, and 0.31 (mm/day) respectively
GC analysis of different parts of Tecoma stans (L.) Juss. ex Kunth for fatty acid composition
Get PDFThe study evaluated the fatty acid profile of Tecoma stans (L.) Juss. ex Kunth plant parts. PUFAs were predominant in seed and leaf, except flower, which showed a higher amount of SFAs. Leaf exhibited the highest content of linolenic acid. cis-11,14-Eicosadienoic acid was the major fatty acid observed in leaf and seed. Another health beneficial n-6 FA observed in seed was cis-13,16-Docosadienoic acid. The C18:2n6c: C18:3n3c ratio of 4.75:1 confirms plant seed as an ideal source of n-6 FAs.
 
Genetic status of Centella asiatica (L.) Urb. (Indian pennywort): A review
Get PDFIn recent years, demand for medicinal plants increased due to the rise in attraction towards herbal products which are safer compared to modern drugs. Centella asiatica (L.) Urb is known as an important medicinal plant in herbal medicinal systems. It also used as an active ingredient for many products in the pharmaceutical and cosmetic industry. So far, review on this plant concerns mainly on medicinal, cosmetology and photochemical works reported. This review presents the genetic studies conducted in this herb along with a mention on conservation. Since documenting and studying genetic variation and its composition has an important connection for the understanding of evolution and improving the conservation of this species
Some nutritional properties of Taiwan Napier grass leaves (Pennisetum purpureum) harvested at different time
Get PDFThe effect of different harvesting time on Napier grass's nutrient composition (Pennisetum purpureum) leaves was investigated. Taiwan Napier grass grown under field conditions were harvested at day-15, 30, 45, 60, 75, and 90 after planting. The leaves samples subjected for analyses on dry matter, moisture, ash, crude fibre, crude fat, crude protein and acid detergent fibre, and the data expressed as a percentage. The present study found that the different harvesting time had changed all nutrients composition, except, crude protein where no variation in crude protein during any harvesting time observed. The present study recommends harvesting time for Taiwan Napier grass between 45 and 60 days after planting was the best. This finding is useful as baseline data that provides information on Taiwan Napier's nutritional composition grown at a particular cropping site. It helps plan and strategy for new planting activity, especially when determining the best time for harvesting