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Genetic variability and regression analysis for yield and quality traits in Brassica napus
Get PDFAn experiment was conducted to estimate the genetic variability and regression analysis for yield and quality traits in a set of eight brassica genotypes in a randomized complete block design with three replications at The University of Agriculture Peshawar, during 2011-12 cropping season. Significant genetic variability was recorded among genotypes for plant height, pods main receme-1, pod length, seed yield plant-1, 1000-seed weight, seeds pod-1, oil content, protein content, glucosinolate content, erucic acid content, oleic acid content and linolenic acid content except for primary branch plant-1 and pods plant-1 which showed non-significant differences. Genotypes, AUP-401, AUP-402, AUP-404 and AUP-407 showed potential performance for glucosinolate content (55.1 µmol g-1), seed yield plant-1 (23.93 g), pods plant-1 (268.83), protein contents (21.1 %), erucic acid contents (42.7 %) and oil contents (53.3 %). Seed yield plant-1 was taken as a dependent variable to study the effects of many morphological yield traits on it. Branches plant-1, pods main raceme-1, pods plant-1, and seed pod-1 showed a positive effect on seed yield plant-1, while 1000-seed weight, pod length, and plant height showed a negative effect on seed yield plant-1. Seed yield plant-1 as an independent variable showed a negative effect on oil content. Protein content as an independent variable showed a positive effect on erucic acid content, while oil contents as independent variables show a negative effect on protein contents, respectively. The developed germplasm could be used in the upcoming brassica breeding programs to release high yielding, disease resistance, stress tolerance, and insect resistance varieties, which will eventually upsurge the productivity and decrease the gap between demand and domestic production of the brassica crop
Perception of change and ethical issues in the use of information and communication technologies in the health sector: Results of an online survey
Get PDFFor several decades, information and communication technologies (ICT) applied to health have undergone a revolutionary development, whether they are e-health, telemedicine or others, these digital changes have marked the global care system. Today, internet is the common source of information to many uses, and it is considered as the wealthiest mine of information for any kind including those of health. This survey, which interviews both Moroccan practitioners and users, is conducted online by distributing two questionnaires. The aim of this study is to discover the perception that Moroccan doctors and users have concerning the change ICTs have been able to bring about without neglecting the ethical and deontological issues involved. The results showed that doctors are already using the web in their daily practice and are open to eHealth practices such as telemedicine. As for users, the practices of eHealth are an asset that should become more widespread. Further research is needed to confirm and further explore the results of this study
Collaborative spaces: organizational, spatial and relational crossover for new ways of working
Get PDFAn investigation into the study habits of distance learners: Implications for personal guidance and counselling at University of Nairobi, Kenya
Get PDFQuality and sustainability have been unresolved issues since the repercussion of the commercialization of distance education. Personal guidance, counseling and study habits, which are critical in maintaining the quality of distance education, have been underrated in most distance education. The study investigated the influence of personal guidance and counseling on study habits of distance learners in Bachelor of Education at the University of Nairobi. 319 respondents participated in the study by filling in questionnaires. The results of the Pearson Correlation Coefficient showed a positive correlation R= 0637 between personal guidance and counseling and study habits. The hypothesis was tested at α=.05 level of significance and the results H01: Personal guidance and counseling do not significantly influence study habits of distance learners was rejected since P=0.000<0.05. Therefore, the study concluded that there is a significant influence of personal guidance and counseling support services on the study habits of distance learners in Bachelor of Education studies of the University of Nairobi. The study recommends a paradigm shift through face to face and digital technology in the provision of personal guidance and counseling for study habits to maintain the quality of distance education
Comparing the efficiency of base and multiplicative selection indices for yield and quality traits in Cassava: Article Retracted by the Authors
No full textThe efficiency of two selection indices; base index and the multiplicative index was compared to determine the effectiveness of each in identifying superior genotypes in cassava (Manihot esculent Crantz) population. Genotypic data on various yield and quality traits among 570 cassava genotypes were used to construct these selection indices. The efficiency of these indices was compared by determining the performance means of each genotype for studied traits and computing selection differentials of each index. Best linear unbiased predictions (BLUPs) for dry matter content and harvest index were also used for comparison of the two selection indices. The base index produced high-performance means of all five studied traits and proved to be more efficient compared to the multiplicative index in the improvement of cassava genotypes. In addition, the base index produced high selection differentials for three out of five studied traits. It was concluded that the base index is useful in cassava germplasm selectio
Blood glucose regulating hormones and their physiological and biochemical roles
Get PDFRegulation and coordination of different body organs is important in multicellular organisms. Hormones and the nervous system participate in this synchronization. Hormones are the compounds and chemical messengers produced by cells, glands, or special tissues called the endocrine system and released into the bloodstream. In addition to the hormones, blood is consist of proteins, sugars, lipids, vitamins, etc. Blood sugar is glucose which produces energy in the body. Regular blood glucose levels vary at different ages and exceed 120-170 mg / dl. It is harmful and even fatal to increase or decrease it from the normal level, so the concentration of glucose dissolved in plasma was subject to tight regulation and various regulatory mechanisms were developed thereon. Hormones cortisol, glucagon, adrenaline, and glucocorticoids are the major regulators. These substances are tracked regularly to prevent blood glucose from rising and dropping. Insulin consists of hyperglycemia, as well as other hormones. The mechanism by which it affects the metabolism of the food (carbohydrates, lipids, proteins) prevents hypoglycemia in several respects
Effects of glycine betaine on plant growth and performance of Medicago sativa and Vigna unguiculata under water deficit conditions
Get PDFManaging water consumption of the crops is one of the strategies which have been adopted locally and worldwide in current trends of sustainable agriculture. In addition to the low level of water resources in UAE because of the rare precipitation, no fresh, free-flowing water, rivers, lakes or streams. The present study was aimed to evaluate the effects of exogenous Glycine Betaine (GB) on Alfalfa (Medicago sativa) and Cowpea (Vigna unguiculata) within different levels of drought stress. A pot experiment was designed on a completely randomized block design (CRBD) with three replicates. Exogenous GB was applied as a foliar spray in three levels (0,100 and 200 ppm) five times with five days intervals. Drought stress starts within the second GB treatment in three levels (24h: 100% well-watered), (48h: 60% water deficit) and (72h: 40% water deficit) depending on the required quantity. Growth characteristics, pigment concentrations, biochemical content and Mineral nutrients levels were measured in response to the treatment variables. Results showed that the GB has a significant increment in Growth parameters, biochemical contents, and Mineral nutrients concentrations. The results of the present investigation suggested that the exogenous application of GB was improved the drought tolerance in Cowpea and has enhanced the Alfalfa performance under drought stress in both concentrations 100 and 200 ppm under drought stress of 60% of irrigations water. In due of comparison of Cowpea and Alfalfa, it’s found from this study that GB has a better effect on the Cowpea under drought stress than Alfalfa
Potential determinants of salinity tolerance in rice (Oryza sativa L.) and modulation of tolerance by exogenous ascorbic acid application
Get PDFRice is a relatively salt-sensitive crop with the reproductive and seedling stages being the most sensitive. Two separate experiments were conducted to isolate potential determinants of salinity tolerance and to investigate the possibility of modulating salt tolerance by exogenous ascorbic acid (AsA) application. Rice plants were imposed to salinity (EC= 10.0 dS m-1) both at the seedling and reproductive phases of growth. Salinity at the seedling stage resulted a sharp decline in shoot and root growth related traits including leaf chlorophyll content, while hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels increased. Plants experienced with salinity at the reproductive phases of growth showed a significant reduction in yield attributing traits while the tissue levels of H2O2 increased. Exogenous AsA application reversed the negative impact of salt stress, modulating the root and shoots growth and yield related traits and lowering H2O2 and MDA levels. FL-478 was identified as the most tolerant genotype at the seedling stage, with Binadhan-10 being the most tolerant at the reproductive stage. Grain yield panicle-1 significantly and positively corrected with number of filled grains panicle-1, panicle length, plant height, and spikelet fertility, and negatively correlated with H2O2 levels. Stress tolerance indices clearly separated the tolerant and susceptible genotypes. A principal component analysis revealed that the first two components explained 87% of the total variation among the genotypes. Breeding efforts could therefore to undertake for developing salinity tolerance by manipulating endogenous AsA content in rice
Host specificity and phytochemical constituents of mistletoe and twigs of parasitized plants: Implications for blanket application of mistletoe as cure-all medicine
Get PDFA study on host specificity and phytochemical constituents of leaves of mistletoe and parasitized twigs of seven host trees/shrubs was conducted in University of Benin, Benin City, Nigeria. Plant height and location were measured with Nikon Laser Rangefinder (Forestry 550) and GPS respectively while occurrence and count of mistletoe on host plants was largely anecdotal/visual. Phytochemical analyses were conducted at Faculty of Agriculture Science/Soil Laboratory, University of Benin, Benin City, Nigeria while data were subjected to One-way Analysis of Variance and means separated using Duncan Multiple Range Test (p=0.05). Results revealed mistletoe were largely generalists, and contained more phytochemicals than host plants. Tapinanthus ogowensis from Moringa oleifera was richest in alkaloid; Phragmanthera nigritana on Citrus sinensis, Tapinanthus ogowensis on Moringa oleifera and Phragmanthera capitata on Calliandra portoricensis recorded highest phenol content and differences among them were not significant (p<0.05). Phragmanthera capitata on Spondias mombin had significantly higher tannins than other mistletoe and host plants (p<0.05). P. capitata on S. mombin recorded best for saponin and flavonoid while P. capitata on Psidium guajava, Loranthus micranthus on Persia americana and P. capitata on C. portoricensis recorded more anthraquinone and were not significantly different from each other p<0.05. While the marked variation in phytochemicals in leaves of mistletoe and twigs of host plants is noteworthy; the study sufficiently established that ecological idiosyncrasies, time/season and varied environmental phenomena strongly influence incidence and/or buildup of secondary metabolites. The foregoing should serve as benchmark in selection and/or use of mistletoe for resolving infirmities
Ethnoveterinary practice followed by Santhal tribes to treat foot and mouth diseases of livestock in Ghatshila Block, Jharkhand, India
Get PDFAn ethnoveterinary study was conducted among the Santhal tribes residing in Ghatshila block of East Singhbhum district in Jharkhand state to document the ethno-medicinal plants, those are used to treat the foot and mouth diseases of livestock. The ethnoveterinary knowledge was documented from the traditional healthcare practitioners in eight villages of the block. The study has resulted use of four plant species belonging to 4 different families to treat foot and mouth disses among livestock. Out of the four plant species, three are tress and one is shrub. The paper describes the plants used for ethno-veterinary practices to treat food and mouth diseases of livestock with botanical names, family, local names, English name, parts used, mode of preparation and administration of herbal drugs