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Journal of Forestry Research 2016年第6期27卷 1385-1390页

作者： Tika khan imtiaz Ahmed khan Abdul Rehman Nisar Ahmed Integrated Mountain Area Research Centre Karakoram International University Department of Biological Sciences Karakoram International University Centre of Agriculture Biochemistry and Biotechnology University of Agriculture Faisalabad

Berberis species medicinal plants in Pakistan are endangered, high-value with important eco-cultural, commercial and livelihood roles in mountain communities. To assess the geographical distribution of Berberis species across the Karakoram Mountain Ranges in Pakistan, we used IUCN Red List Categories and Criteria （2001） to calculate the extent of occurrence （EOO, 〈100 km^2） and the area of occupancy （AOO, 〈10 km^2） of Berberis pseudumbellata subsp, pseudumbellata and B. pseudumbellata subsp. gilgitica. Overgrazing and habitat loss were key population- limiting factors. The two subspecies had contrasting responses to temperature, elevation, precipitation and insect susceptibility. B. pseudumbellata subsp, gilgitica is endemic to Gilgit-Baltistan and grows in single-cropping zone （ar- eas 〉 200 m a.s.1.）. Status evaluation revealed that both subspecies meet the criteria set for critically endangered species. Prolonged disregard of its declining population trend might lead to its extinction; therefore, integrated con- servation efforts are necessary.

关键词： Berberis Ecological zonation Critically endangered Extent of occurrence Karakoram Occupation area Spatial distribution

Evaluation of different formulations of IGRs against Aedes albopictus and Culex quinquefasciatus(Diptera:Culicidae)

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Asian Pacific Journal of Tropical Biomedicine 2016年第6期6卷 485-491页

作者： Gul Zamin khan Inamullah khan imtiaz Ali khan Alamzeb Muhammad Salman Kalim Ullah Entomology Division Nuclear Institute for Food and Agriculture (NIFA) Department of Entomology Faculty of Crop Protection Sciencesthe University of Agriculture Pakistan Central Cotton Committee Cotton Research Station

Objective: To test the relative efficacy of pyriproxyfen and methoprene on mortality,deformity, inhibition and emergence to adult stages of Culex quinquefasciatus and Aedes ***: Serial dilutions(0.01–0.05 mg/L) of methoprene, pyriproxyfen 0.5 water dispersible granules(WDG) and pyriproxyfen 1.0 WDG were used to assess mortality and inhibition of 3rd instar larvae of Aedes albopictus and Culex quinquefasciatus. Each concentration and control was replicated four times in completely randomized *** on larval mortality, growth inhibition, deformities and adult's emergence was recorded weekly. On the basis of best comparative performance, the efficacy of pyriproxyfen 1.0 WDG at 0.1 g/m3 was also tested in the field by collecting treated water samples monthly for 1–6 months after field application. Twenty five 3rd instar larvae of Aedes and Culex spp. of the same cohorts were used for bioassays and compared with larvae in control cups containing 1 L of untreated tap ***: Results revealed variations in fatality of different insect growth regulators(IGRs) to the 3rd instar larvae of Culex and Aedes mosquitoes. Among the IGRs, pyriproxyfen 1.0 WDG was found best that exhibited significantly high emergence inhibition against Culex and Aedes spp. Based on the results, the IGRs were classified in terms of the tested parameters in order of pyriproxyfen 1.0 WDG > pyriproxyfen 0.5WDG > methoprene. In case of field studies, pyriproxyfen 1.0 WDG, pool data of the entire target treated sites showed minimum adult emergence from water sampled of habitats treated with 0.1 g/m3 of pyriproxyfen 1.0 ***: It is thus concluded that IGRs can be utilized as environment friendly control measures for Culex and Aedes spp. of mosquitoes on small and large scale. This will reduce the use of conventional insecticides by the public health authorities and help in reducing selection pressure of insecticides.

关键词： Insect growth regulators Mortality Inhibition Deformities Insecticides Environment friendly

Determination of Essential Fatty Acid Composition among Mutant Lines of Canola (Brassica napus),through High Pressure Liquid Chromatography

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Journal of Integrative Plant Biology 2009年第12期51卷 1080-1085页

作者： Ghulam Raza Aquil Siddique imtiaz Ahmad khan Muhammed Yasin Ashraf Abdullah Khatri Plant Genetic Division Nuclear Institute of Agriculture (NIA) Tando Jam 70060 Pakistan Nuclear Institute for Agriculture and Biology Faisalabad 38000 Pakistan

The present study aimed to quantify the methyl esters of lenoleic acid （LA）, γ-lenolenic acid （LNA） and oleic acid （OL） in the oil of Brassica napus mutants. Five stable mutants （ROO-75/1, ROO-100/6, ROO-125/12, ROO-125/14, and ROO-125/17） of B. napus cv. ＇Rainbow＇（P） and three mutants （W97-95/16, W97-0.75/11 and W97-.075/13） of B. napus cv. ＇Westar＇（P） at M6 stage, exhibiting better yield and yield components, were analyzed for essential fatty acids. The highest seed yield was observed in the mutant （ROO-100/6） followed by ROO-125/14 of Rainbow, that is, 34% and 32% higher than their parent plants, respectively. Westar mutant W97-75/11 also showed 30% higher seed yield than its parent plant. High performance liquid chromatography analysis of the composition of fatty acids indicated that OL was the most dominant fatty acid, ranging from 39.t to 66.3%; LA was second （15.3-41.6%） and LNA was third （18.1-28.9%）. Mutant ROO-125/14 showed higher OL contents than parent （Rainbow）. These results are expected to support the approval of ROO-125/14 in the National Uniform Varietal Yield Trials （NUVYT） as a new variety based on high oil quality.

关键词： Brassica high performance liquid chromatography lenoleic acid lenolenic acid oleic acid.

Recent Insights into Signaling Responses to Cope Drought Stress in Rice

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Rice science 2022年第2期29卷 105-117页

作者： Muhammad Mahran ASLAM Muhammad Abdul Rehman RASHID Mohammad Aquil SIDDIQUI Muhammad Tahir khan Fozia FARHAT Shafquat YASMEEN imtiaz Ahmad khan Shameem RAJA Fatima RASOOL Mahboob Ali SIAL ZHAO Yan Nuclear Institute of Agriculture Tandojam Sindh 70060Pakistan Department of Bioinformatics and Biotechnology Government College University FaisalabadFaisalabad 38000Pakistan Research Center for Perennial Rice Engineering and Technology in Yunnan School of AgricultureYunnan UniversityKunming 650205China Department of Botany Government College for Women UniversityFaisalabad 38000Pakistan National Center of Bioinformatics Quaid-i-Azam UniversityIslamabad 45320Pakistan State Key Laboratory of Crop Biology Shandong Key Laboratory of Crop BiologyCollege of AgronomyShandong Agricultural UniversityTai’an 271018China

Drought is one of the hot topics needing urgent attention in the current era of climate *** massively disturbs the rice growth and productivity and is becoming a serious *** drought avoidance strategies in rice include stomatal closure,cellular adaptation and changes in root ***,the endogenous plant hormones(abscisic acid and jasmonic acid)and reactive oxygen species have paramount importance in drought tolerance in *** drought tolerance induces modification in biochemical,molecular and physiological properties of *** the molecular level,expression of several transcription-factors is modulated which further determine the activation of drought responsive gene *** activated protein kinases and Ca signaling pathways initiate an array of signaling cascade for mediating the gene expression in ***,conventional breeding methods combined with modern emerging techniques such as genetic engineering,to improve rice drought tolerance were *** review provided recent insights into major regulatory factors against drought stress,signaling mechanisms and molecular engineering strategies(including conventional transgenic and recent genome editing approaches)to induce drought tolerance in rice.

关键词： drought stress rice signaling response regulatory factor

Developmental Response of <i>Pieris brassicae</i>(L.) (Lepidoptera: Pieridae) on Different Cauliflower Cultivars under Laboratory Conditions

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American Journal of Plant Sciences 2014年第18期5卷 2611-2616页

作者： Amna Sadozai imtiaz Ali khan Entomology Department Faculty of Crop Protection The University of Agriculture Peshawar Pakistan

Cauliflower is popular vegetable in Pakistan and it is severely attacked by Pieris brassicae (L). There are different cauliflower cultivars available in this area. The aim of this study was to determine the developmental response of Pieris brassicae on ten cauliflower cultivars. An experiment was conducted during 2012-13 at the Entomology section of the Agriculture Research Institute Tarnab Peshawar under laboratory conditions of 20°C ± 2°C, 50% ± 5% RH and 12:12h photoperiod. Pieris brassicae eggs were collected from a cauliflower field ARI Tarnab and the larvae placed after hatching on fresh leaves often cauliflower cultivars. The results showed that the larval development of P. brassicae was short (35 days), longer larval length (32.41 mm), larval mortality was low (6.6%) and pupal weight was high (0.50 g) on Clima cultivar. On the other hand, a longer larval developmental period (37 days), higher larval mortality (86.66%), shorter larval length (24.55 mm) and lower pupal weight (0.42 g) were recorded on cultivar AX-2034.

关键词： Pieris brassicae Biology Cauliflower

Life table and prey consumption by Propyleajaponica Thunberg(Col.,Coccinellidae) of un-parasitized and Encarsia formosa Gahan(Hym.,Aphelinidae) parasitized Bemisia tabaci(Gennadius)(Hom.,Aleyrodidae) biotype B prey

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Life table and prey consumption by Propyleajaponica Thunberg...

Neuro-heuristic computational intelligence for solving nonlinear pantograph systems

第一届全国生物入侵学术研讨会

作者： imtiaz Ali khan State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection(South Campus)Chinese Academy of Agricultural Sciences(CAAS)

Bemisia tabaci(Gennadius)(Homoptera,Aleyrodidae) biotype B has become a major pest, causing serious losses to many agricultural crops *** japonica Thunberg(Coleoptera, Coccinellidae) is an important polyphagous predator of different agricultural pests *** the present study,life table and prey consumption by *** of un-parasitized and Encarsia formosa Gahan(Hymenoptera,Aphelinidae) parasitized *** biotype B prey was determined on fresh tomato leaves as arena of *** was able to develop and reach the adult stage with feeding on *** *** developmental duration of egg,L,L,L,L and pupal stage was 3.6, 2.1,3.0,3.2,3.4,3.3 days for females and 3.4,2.2,2.9,3.0,3.4,3.1 days for males,*** total duration from egg to adult was 18.8 days for females and 18.0 days for *** recorded during embryonic,L,L,L,L and pupal stages was 4.0,3.2,3.2,2.4,3.2 and 5.6%,*** females(58.1 days) lived longer than the males(48.9 days).Fecundity was a mean total number of 542.0 eggs/female,ranging from 475-630 *** results of prey consumption experiments showed that the predator in immature as well as adult stages consumed almost similar number of un-exposed and *** exposed *** eggs and N *** consumed higher number of un-parasitized than the *** parasitized *** N,N,N and pupal *** consumed number of all prey stages increased in the subsequent stages of the predator,where the adult females consumed higher number prey than the males.

关键词： Bemisia tabaci Encarsia formosa life table predation Propyleajaponica

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Frontiers of Information Technology & Electronic Engineering 2017年第4期18卷 464-484页

作者： Muhammad Asif Zahoor RAJA Iftikhar AHMAD imtiaz khan Muhammed Ibrahem SYAM Abdul Majid WAZWAZ Department of Electrical Engineering COMSA Ts Institute of Information Technology Attock 43200 Pakistan Department of Mathematics University of Gujrat Gujrat 50700 Pakistan Department of Mathematics Preston University lslamabad Campus Kohat Islamabad 44000 Pakistan Department of Mathematical Scienees United Arab Emirates University Al-Ain Box 15551 UAE Department of Mathematics Saint Xavier University Chicago IL 60655 USA

We present a neuro-heuristic computing platform for finding the solution for initial value problems （IVPs） of non- linear pantograph systems based on functional differential equations （P-FDEs） of different orders. In this scheme, the strengths of feed-forward artificial neural networks （ANNs）, the evolutionary computing technique mainly based on genetic algorithms （GAs）, and the interior-point technique （IPT） are exploited. Two types of mathematical models of the systems are constructed with the help of ANNs by defining an unsupervised error with and without exactly satisfying the initial conditions. The design parameters of ANN models are optimized with a hybrid approach GA-IPT, where GA is used as a tool for effective global search, and IPT is incorporated for rapid local convergence. The proposed scheme is tested on three different types oflVPs of P-FDE with orders 1-3 The correctness of the scheme is established by comparison with the existing exact solutions. The accuracy and convergence ofthc proposed scheme are further validated through a large number of numerical experiments by taking different numbers of neurons in ANN models.

关键词： Neural networks Initial value problems (IVPs) Functional differential equations (FDEs) Unsupervised learning Genetic algorithms (GAs) Interior-point technique (IPT)

PAIgG and PAIgM levels in secondary dengue virus infections lead to thrombocytopenia in patients from KP, Pakistan

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Asian Pacific Journal of Tropical Biomedicine 2015年第10期5卷 801-805页

作者： Ibrar Alam Said Hassan Iftikhar Alam Rahmat Gul Farhad AliIjaz Ali Sana Ullah imtiaz Ali khan Aasif Awan Department of Biotechnology Bacha Khan University Charsadda Institute of Biotechnology and Genetic Engineering(IBGE) The University of Agriculture Center of Biotechnology and Microbiology University of Peshawar Department of Human Nutrition and Dietetics Bacha Khan University Charsadda Department of Zoology University of Peshawar Department of Entomology The University of Agriculture

Objective: To understand the impact of platelet associated immunoglobulin G(PAIg G)/platelet associated immunoglobulin M(PAIg M) on severity of dengue virus infection leading to ***: In this study we examined a total of 52 patients who were having secondary infection of dengue in acute phase by using competitive ***: A decrease in the platelet count was observed at the acute phase of infection while all along the recovery stage the count of platelet was significantly increased. A significant decrease was observed in PAIg G and PAIg M in these subjects. Inverse correlation was found between platelets count and PAIg G/PAIg M among the subjects studied. In the platelets elution from ten subjects, anti-dengue virus immunoglobulin G and immunoglobulin M were observed. PAIg G and PAIg M with inclined levels were higher in dengue hemorrhagic fever than the classical dengue fever. In the development of dengue hemorrhagic fever PAIg M inclined level was independently associated with high specificity, showing a possible indication of dengue hemorrhagic ***: This study suggests that in secondary dengue virus infection, the PAIg G and PAIg M levels, and the activity of anti-dengue virus play key roles, both in the development and severity of the disease.

关键词： dengue Pakistan immunoglobulin hemorrhagic severit

Analysis of Serum Cholesterol Level in Goats Breeds in Gilgit-Baltistan Area of Pakistan

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Journal of Agricultural Science and Technology(A) 2013年第4期3卷 302-306页

作者： Akbar khan Shama Rehman Raja Imran imtiaz Ahmed khan Karim Dad Pitafi Department of Biological Sciences Karakoram International University Gilgit Pakistan

In goats （Capra hircus） and other ruminants cholesterol is naturally produced in liver and intestinal walls. It is also acquired from supplemental food. Cholesterol is a source of energy and is a precursor of steroid hormones, bile acids and also required for normal cell function. The level of serum cholesterol is generally lower in goat breeds as compared to other cattles. The present study was conducted to estimate level of serum cholestrol in goats （both male and female） commonly reraed in three areas of Gilgit-Baltistan province of Pakistan viz; Ghizer, Baltistan and Hunza-NagarRandom samples of blood were taken from 440 goats （181 male and 259 female） and serum was obtained by centrifugation. Quantity of cholesterol in mg deciliter＂l of serum was determined by analyzing the serum using Micro-lab 300. Distrci wise comparison showed that cholestrol level in the samples from the three districts was highly significant. While the differences between the gender （male and female goats） from the same district were non-significant at P 〈 0.05. Ghizer breed is suggested to be better for human consumption because it had the lowest chlestrol level. The paper aslo discuss the effect of pastures feeding on the level of cholesterol in the serum of goats. Present findings will help formulate better strategies for the imporvement of goat breeds in the area.

关键词： Goat cholesterol level serum Gilgit-Baltistan Pakistan

Disentangling the contributing components of stream water by using environmental tracers

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Journal of Mountain Science 2025年第1期22卷 260-277页

作者： Abul Amir khan Naresh Chandra PANT Amity Centre for Air Pollution Control(ACAPC)&Amity Centre for Ocean Atmospheric Science and Technology(ACOAST) Amity University Haryana(AUH)Gurugram-122413India Department of Geology University of DelhiNorth CampusDelhi-11007India

Identifying the various components contributing to river discharge can be *** study relies on stable isotopes and electrical conductivity(EC)of water as tracers to distinguish the different components contributing to total river ***,we have made an effort to comprehend the processes that may influence glacier ice melt as well as the limits of oxygen-based hydrograph *** distinct geographic domains in terms of climates and topographies were *** first study site represents the upper Ganga catchment(central Himalaya),while the second site is located in the Chandra sub-basin in western *** in estimating the proportion of glacier melt in isotope mixing model are likely if end-member isotopic compositions,are not well defined,particularly for *** separation results indicate that snowmelt is the largest contributor to total river flow in both *** contribution of snowmelt to the total runoff of the upper Ganga ranged from~60%to 70%.The estimated contributions of glacier melt varied from 36%to 63%in upper Ganga headwater to 6%to 15%at Devprayag and~8%at *** the Hamtah River,glacier and snowmelt contributions,quantified using a two-component mixing model,ranged from 10%to 14%during the pre-and postmonsoon seasons of *** significant spatial and temporal variability,coupled with overlapping isotopic signatures,suggests complex glacio-fluvial interactions in these *** slow-moving air masses with whirling motion closer to the study area irrespective of the direction,and air parcels coming through Bay of Bengal branch are characterized by depleted isotopic rainfall compared to air masses originating from the Arabian Sea.

关键词： Snowmelt Glacier melt Oxygen isotopes Bhagirathi River Alaknanda River Hamtah