Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

2019 ( 21 )

2018 ( 22 )

2017 ( 28 )

2016 ( 38 )

Custom range...

Search Results: 1 - 10 of 3072 matches for " Syed Farman Ullah "
All listed articles are free for downloading (OA Articles)
Page 1 /3072
Display every page Item
Multivariate Based Variability within Diverse Indian Mustard (Brassica juncea L.) Genotypes  [PDF]
Noor Saleem, Sohail Ahmad Jan, Muahmmad Jawaad Atif, Haris Khurshid, Shahid Ali Khan, Mohib Abdullah, Muhammad Jahanzaib, Humair Ahmed, Syed Farman Ullah, Azhar Iqbal, Sameena Naqi, Muhammad Ilyas, Naushad Ali, Malik Ashiq Rabbani
Open Journal of Genetics (OJGen) , 2017, DOI: 10.4236/ojgen.2017.72007
Abstract: Indian mustard (Brassica juncea L.) germplasm consisting 167 accessions including one check cultivar was evaluated for qualitative and quantitative traits. The present study was conducted to investigate genetic diversity and correlation among studied genotypes of B. juncea L. based on agro-morphological at NARC, Islamabad, Pakistan. To investigate the genetic diversity based on morphological characters, data was recorded on 20 quantitative and 12 qualitative traits. The calculated data was analyzed through two complementary methods, i.e. PCA (Principal Component Analysis) and cluster analysis. Among all the studied cultivars, significant diversity was recorded for different agro-morphological characters. Among all the parameters, maximum variance was recorded for pod shattering (427.2) followed by plant height (345.6), days to 100% flowering (336.2) and main raceme length (210.0). Among all the characters, the greatest and highly significant association (0.99) was found between days to maturity 50% and days to maturity 100% followed by correlation (0.86) among days to flowering 50% and days to flowering 100%, correlation value (0.71) was calculated among leaf length and leaf width. Using cluster analysis all the genotypes were divided into five major groups. It was observed that 7 out of 20 principal components with an Eigen value of ≥1.0 calculated for 73.92% of the total diversity observed between 167 accessions of Indian mustard (B. juncea L.). The contribution of first three PCs in the total PCs was 23.25, 12.87 and 11.24, respectively. Among all the investigated accessions two genotypes 26,813 and 26,817 showed great potential for seeds/silique, 1000-seed weight and seed yield/plant, respectively, so these genotypes are recommended for future breeding programs for achieving promising results.
New Cholinesterase Inhibitory Constituents from Lonicera quinquelocularis
Dilfaraz Khan, Hidayat Ullah Khan, Farmanullah Khan, Shafiullah Khan, Syed Badshah, Abdul Samad Khan, Abdul Samad, Farman Ali, Ihsanullah Khan, Nawshad Muhammad
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0094952
Abstract: A phytochemical investigation on the ethyl acetate soluble fraction of Lonicera quinquelocularis (whole plant) led to the first time isolation of one new phthalate; bis(7-acetoxy-2-ethyl-5-methylheptyl) phthalate (3) and two new benzoates; neopentyl-4-ethoxy-3, 5-bis (3-methyl-2-butenyl benzoate (4) and neopentyl-4-hydroxy-3, 5-bis (3-methyl-2-butenyl benzoate (5) along with two known compounds bis (2-ethylhexyl phthalate (1) and dioctyl phthalate (2). Their structures were established on the basis of spectroscopic analysis and by comparison with available data in the literature. All the compounds (1–5) were tested for their acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activities in dose dependent manner. The IC50 (50% inhibitory effect) values of compounds 3 and 5 against AChE were 1.65 and 3.43 μM while the values obtained against BChE were 5.98 and 9.84 μM respectively. Compounds 2 and 4 showed weak inhibition profile.
An Analysis of Household Saving and Investment Behavior among Different Income Groups in Urban Area of District Peshawar  [PDF]
Humaira Syed, Shaheen Nigar, Sami Ullah
iBusiness (IB) , 2017, DOI: 10.4236/ib.2017.94013
Abstract: The author conducted a study to analyze the saving and investment behavior among different income groups of the urban households of Hayatabad, Peshawar. A sample of 201 respondents from different phases was interviewed. The proportional allocation method was used to divide sample households according to the plot size. The findings showed that the level of literacy was 97.51% in the study area whereas the employment status of the households was 99.5%. The average household size was 20.5% with an average monthly income of Rs. 87,333. Average household saving was Rs.12,900/month and average investment was Rs.7649/month. The author concluded that households saving and investment over there are affected by a number of variables like income, education, employment status, the number of dependents, assets etc. The study recommended that more employment opportunities should be created to minimize the negative impact of dependents on household saving and investment. Secondly, high expenses of children’s education could be reduced by providing low-cost education; as a result, a large portion of income could be saved and can be invested further. Moreover, risk should be minimized to motivate people to invest in different fields.
Evaluation of cucumber (Cucumis sativus L.) accessions (cultivars and lines) against the two-spotted spider mite (Tetranychus urticae Koch.) and kanzawa spider mite (T. kanzawai Kishida, Acari: Tetranychidae)
Farman Ullah,Joon-Ho Lee,Farhatullh
Songklanakarin Journal of Science and Technology , 2006,
Abstract: Forty three cucumber (Cucumis sativus L.) accessions (cultivars and lines) were tested against the two-spotted spider mite (Tetranychus urticae Koch) and kanzawa spider mite (Tetranychus kanzawai Kishida). The highest number of T. urticae and T. kanzawai eggs /female/ day (5.98, and 6.23 respectively) was recorded on the cucumber genotype Blackish Green while the lowest eggs/female/day (2.95 and 3.31) was recorded on Winter Long Green (WLG) for T. urticae and T. kanzawai respectively. On a scale of 1 to 5, the highest visual damage rating was recorded on Blackish Green (4.75 for T. urticae and 4.78 for T. kanzawai) and the lowest damages rating of 1.50 and 1.70 were recorded on WLG for T. urticae and T. kanzawai respectively. Instead of distinct categories of resistance and/or susceptibility, an array of responses (number of eggs laid/female/ day and damage rating) was recorded on the tested cucumber accessions, suggesting two or more genes with additive effects. Based on our findings, Blackish Green was foud to be a susceptible cultivar and Winter Long Green proved to be a resistant one. These two cultivars could be used as a differential host in further studies. Among the Korean cucumber lines, K-4, K-6, and K-20 where found susceptible while K-1, K-2, K-13, and K-15 exhibited some type of resistance to the two mite species.
Studies on Varietal Resistance and Chemical Control of Whitefly (Bemisia tabaci Genn.) in Cotton
Farman Ullah,Abdul Fateh Baloch,Hayat Badshah
Journal of Biological Sciences , 2006,
Abstract: The present study was conducted to evaluate cotton varieties against whitefly, to investigate its population trend and to evaluate best insecticide for its management. Six varieties were tested to see the level of preference of whitefly on different varieties. Only variety K-68/9 showed some resistance against this pest where as CIM-240 and NIAB-78 were more susceptible to the whitefly. Whitefly made its appearance from last weak of July and continued up to December. Its maximum population was recorded on 21st October. Five pesticides were also tested against this pest; Tamaron 600 SL (methamidophos) gave best control of this pest. The overall cumulative effect of different treatments on different cotton varieties with time interval against this pest showed good response of the treatments after 3 days spray. While overall commutative effect of treatments on the different cotton varieties, good response was observed on CRIS-9.
Silicon Mediated Arsenic Reduction in Rice by Limiting Its Uptake  [PDF]
Muhammad Mohsin Raza, Sami Ullah, Zulfiqar Ahmad, Sohaib Saqib, Sarfraz Ahmad, Hafiz Muhammad Bilal, Farman Wali
Agricultural Sciences (AS) , 2016, DOI: 10.4236/as.2016.71001
Abstract: This study was planned to examine the effects of exogenous silicon supply on growth parameters and arsenic accumulation level in rice. The experiment was conducted in the wire house of Saline Agriculture Research Centre, Institute of Soil and Environmental Science, University of Agriculture Faisalabad. The study was comprised of treatments viz: control; (100 μM Arsenic); (200 μM Arsenic); (5 mM Silicon); (5 mM Silicon + 100 μM Arsenic) and (5 mM Silicon + 200 μM Arsenic). Results revealed that maximum shoot fresh weight, shoot dry weight, root fresh weight and root dry weight were observed in (5 mM Si) solution. In the same way, maximum number of tillers was also recorded in (5 mM Si) solution; while silicon application failed to alleviate arsenic concentration of rice genotype.
Fenugreek (Trigonella foenum-graecum L.) effect on muscle growth of broiler chicks
Farman Ullah Khan,,Asad Ullah,,Sajid Rahman,,Shabana Naz
Research Opinions in Animal & Veterinary Sciences , 2011,
Abstract: The purpose of this research work was to evaluate the aqueous seed extract of Trigonella foenum-graecum L. (Fenugreek) on the weight of breast, thigh and leg of broiler chicks. One hundred and sixty, day old male broiler chicks were randomly assigned to four treatments i.e., A, B, C and D. Each treatment was replicated four times with 10 chicks per replicate. Groups B, C and D received the aqueous extract of fenugreek @ 10, 20 and 30 ml/L, respectively while group A served as a control. Chicks were reared in cages in an open sided house. The data showed that weight of breast, thigh and leg were significantly (P<0.05) heavier in group C compared to control. It was concluded from this study that Trigonella foenum-graecum at the rate of 30 ml/L aqueous extract has a beneficial impact on the growth of these muscle tissues.
A Simple Method to Recover 3-D Rigid Structure from Motion using SIFT, RANSAC and the Tomasi-Kanade Factorization
Samir H. Abdul-Jauwad,Rehmat Ullah,Farman Ullah
International Journal of Computer Science Issues , 2012,
Abstract: Traditionally two frames are used to estimate the 3-D structure, while recent approaches have made use of a long sequence of frames. The latter gives a better recovery of a structure because it amasses temporal information over time. Tomasi-Kanade factorization also assumes all features to be visible throughout the entire image stream. This results in a dense 2-D cloud and therefore allows full recovery of the entire 3-D structure. This paper addresses the problem of 3-D structure reconstruction from motion by using the Tomasi-Kanade factorization method applied to a sequence of frames. Orthographic projection and rigidity is assumed and the singular value decomposition technique is used to factor the measurement matrix (W) into two matrices which correspond to the objects 3-D structure (S) and camera rotation (R) respectively. To construct W, feature correspondences are established by applying a SIFT tracker following which RANSAC is used to discard the false matches detected by the SIFT tracker. The 3-D point-cloud (S) is converted to a mesh of triangles by connecting the nearest three neighboring points. Finally, the mesh of triangles is rendered by means of the Plyview from CyberWare to achieve the final 3-D structure.
Effect of Host and Parasitoid Density on Parasitism Efficiency of Trichogramma chilonis (Ishii)
Muhammad Siddiq Khan,Abid Farid,Farman Ullah,Hayat Badshah
Asian Journal of Plant Sciences , 2004,
Abstract: Studies were carried out at Nuclear Institute for Food and Agriculture in July 2002 to find out the effect of different host and parasitoid density levels on the efficiency of Trichogramma chilonis. Eggs of Sitotroga cerealella were used as a host for Trichogramma chilonis. Four different host densities viz., 5, 10, 20 and 40 eggs were provided to single pair of Trichogramma chilonis. Percent parasitism was highest (48.25%) at 20 eggs/single pair, whereas percent emergence was highest (88.89%) from 5 eggs but all treatments were statistically similar. Female ratio was also highest at 5 eggs/female. The longevity was highest at 20 eggs/pair. So 20 eggs/pair were suggested for rearing at laboratory condition. For parasitoid density, four treatments e.g. 1, 2, 3 and 4 pairs of T. chilonis were compared against 50 eggs of Sitotroga cerealella. Parasitism percentage was highest at 4 pair of Trichogramma, which was 49.6%. Percent emergence and longevity remained similar among all the 4 treatments. Female ratio was highest at 3 pair (49.92%) therefore, 3 pair is suggested for about 50 eggs.
Hydro-meteorological characteristics of Chitral River basin at the peak of the Hindukush range  [PDF]
Salma Khalid, Shafiq Ur Rehman, Syed Mushtaq Ali Shah, Alia Naz, Beena Saeed, Sadia Alam, Farman Ali, Hasina Gul
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.59120

This paper presents the impact of mean maximum temperature on Chitral river basin situated at Chitral district and high altitude (>6000 m) peaks of the Hindukush range under changing climate in Pakistan. The analysis of Chitral River as one of the tributary of Kabul River—the second largest river of Pakistan—revealed that change in temperature has a profound influence on the snow/glacial melt in comparison to the mean monthly rainfall. This is because the studied river is faded by the snow and glacial melt and receives a lot of snowfall from winter (DecFeb) to pre-monsoon (April-May). In monsoon period (Jul-Sep), 30% of the time the discharge rate remains above the mean while 60% of the time the discharge is less than the mean in the pre-monsoon (April-May) period. It means that 10% of the time the discharge is in reach of 300% to 900% of the mean flow, showing a rise in water yield and river discharge rate due to increase in mean monthly maximum temperature. Due to this significant increase (p < 0.05), the glaciers start melting faster and disappear in early summer, hence, reducing their residency period to convert into ice. This shows the signals of changing climate transfer into hydrological changes in Pakistan. Our findings are important for agriculture, hydropower and water management sectors for future planning especially in dry season for sustainable food security and for operation of ydrological installations in the country.

Page 1 /3072
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.