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| 1 | 旱区农业雨水资源利用与生态系统可持续性:2013干旱农业和生态系统可持续性国际会议综述显示文摘随着全球气候变化的日益凸显,旱区农业和生态系统可持续性发展越来越受到世界各国政府和生态学家的关注。本文综述了2013年10月14—18日在兰州大学举行的干旱农业和生态系统可持续性国际会议全部28场学术报告,围绕'旱区雨水资源高效利用与生态系统可持续管理'的主题,分别从干旱农业面临的机遇和挑战、雨水资源高效利用、旱区生物多样性保护、生态信息系统构建、生态系统可持续管理和加强发展中国家之间的国际合作等几个方面进行了总结。文章最后围绕生态系统圈层管理理论,总结了最近几年在旱区农业水资源利用和生态系统管理方面的最新进展,构建了生态保育和农业生产之间的耦合关系图,为气候变化下旱区粮食安全、农户生计改善、生态系统可持续管理和社会经济协调发展提供理论依据。 | 王慧莉 田涛 王建永 Asfa Batool 赵旭喆 莫非 Nudrat Aisha Akram 熊友才 | 2014 | 生态学杂志2014，33，11： | 12 |
| 2 | Evaluation of the Clinical Relevance of Baseline Left Ventricular Ejection Fraction as a Predictor of Recovery or Persistence of Severe Dysfunction in Women in the United States With Peripartum Cardiomyopathy显示文摘 | Sorel Goland Fahed Bitar Kalgi Modi Jordan Safirstein Angela Ro James Mirocha Nudrat Khatri Uri Elkayam | 2011 | Journal of Cardiac Failure2011，，5： | 1 |
| 3 | Am- inolevulinic acid-induced changes insome key physiological attributes and activities of antioxidant enzymes in sunflow plants under saline regimes显示文摘 | NUDRAT AISHA AKRAM MUHAM- MAD ASHRAF AL-QURAINY F | 2012 | Scientia Horticlturae2012，142，： | 1 |
| 4 | Regulation in Plant Stress Tolerance by a Potential Plant Growth Regulator, 5-Aminolevulinic Acid显示文摘 | Nudrat Aisha Akram Muhammad Ashraf | 2013 | Journal of Plant Growth Regulation2013，，3： | 1 |
| 5 | Appraisal of Improvement in Physiological and Metabolic Processes by Exogenously Applied Natural and Synthetic Ascorbic Acid in Okra(Abelmoschus esculentus L.)Fruit Subjected to Water Deficit Stress显示文摘To counteract the effects of drought stress,scientists have adopted several approaches including the use of different chemicals both inorganic and organic,which is contemplated as a highly efficient and cost-effective shot-gun approach.Ascorbic acid(AsA)is a potential organic substance,which widely occurs in plants,and is considered to be an effective antioxidant to counteract reactive oxygen species(ROS).Thus,a pot experiment was performed to assess the relative mitigating impacts of synthetic AsA and naturally occurring AsA in the form of lemon juice(LJ)and orange juice(OJ)on two cultivars of okra(Abelmoschus esculentus L.)namely Sabz Pari and Bhindi Sanwali under varying water deficit conditions.After 30 days of seed germination,okra seedlings were subjected to different irrigation regimes,i.e.,water deficit stress[(65%and 50%F.C.)and control conditions(100%F.C.)].Different levels of AsA[control(no spray),14 mg L^(−1)LJ,24 mg L^(−1)OJ and 150 mg L^(−1)AsA]obtained from different sources were applied as a foliar spray to control and water-stressed plants.Drought stress prominently reduced plant growth and yield attributes of the okra cultivars.Water-deficit conditions(65%and 50%F.C.)substantially decreased the fruit chlorophyll(a,b)pigments and the activity of superoxide dismutase(SOD)enzyme,while an increase was observed in the contents of fruit’s hydrogen peroxide(H_(2)O_(2)),malondialdehyde(MDA),total phenolics,total soluble sugars,AsA,and total soluble proteins.Drought stress also increased the activities of antioxidant enzymes like peroxidase(POD)and catalase(CAT).However,plant growth and yield attributes,fruit chlorophyll pigments,total phenolics,total soluble sugars,total free amino acids,total soluble proteins,AsA,GB,H_(2)O_(2),and the activities of antioxidant enzymes(POD and CAT)were increased by the AsA exogenous treatment in both okra cultivars under water deficit and control conditions.Overall,LJ and OJ were more effective than the synthetic AsA in upregulating the physiological and metabolic processes of okra plants.So,cost-effective as well as multi-nutrient natural sources of AsA could be suggested for alleviating the harmful effects of water deficit stress on plants. | Muhammad Younis Nudrat Aisha Akram Arafat Abdel Hamed Abdel Latef Muhammad Ashraf | 2023 | Phyton-International Journal of Experimental Botany2023，92，10： | 0 |
| 6 | A Comparative Numerical Study of Parabolic Partial Integro-Differential Equation Arising from Convection-Diffusion显示文摘This article studies the development of two numerical techniques for solving convection-diffusion type partial integro-differential equation(PIDE)with a weakly singular kernel.Cubic trigonometric B-spline(CTBS)functions are used for interpolation in both methods.The first method is CTBS based collocation method which reduces the PIDE to an algebraic tridiagonal system of linear equations.The other method is CTBS based differential quadrature method which converts the PIDE to a system of ODEs by computing spatial derivatives as weighted sum of function values.An efficient tridiagonal solver is used for the solution of the linear system obtained in the first method as well as for determination of weighting coefficients in the second method.An explicit scheme is employed as time integrator to solve the system of ODEs obtained in the second method.The methods are tested with three nonhomogeneous problems for their validation.Stability,computational efficiency and numerical convergence of the methods are analyzed.Comparison of errors in approximations produced by the present methods versus different values of discretization parameters and convection-diffusion coefficients are made.Convection and diffusion dominant cases are discussed in terms of Peclet number.The results are also compared with cubic B-spline collocation method. | Kamil Khan Arshed Ali Fazal-i-Haq Iltaf Hussain Nudrat Amir | 2021 | Computer Modeling in Engineering & Sciences2021，，2： | 0 |
| 7 | Exogenously applied glycinebetaine induced alteration in some key physio-biochemical attributes and plant anatomical features in water stressed oat(Avena sativa L.) plants显示文摘Although exogenous application of glycinebetaine(GB) is widely reported to regulate a myriad of physio-biochemical attributes in plants under stressful environments including drought stress, there is little information available in the literature on how and up to what extent GB can induce changes in anatomical features in water starved plants. Thus, the present research work was conducted to assess the GB-induced changes in growth, physio-biochemical, and anatomical characteristics in two cultivars(CK-1 and F-411) of oat(Avena sativa L.) under limited water supply. After exposure to water stress, a considerable reduction was observed in plant growth in terms of lengths and weights of shoot and roots,leaf mesophyll thickness, leaf midrib thickness, root cortex thickness, root diameter, stem diameter, stem phloem area, and stem vascular bundle area in both oat cultivars. However, water stress resulted in a significant increase in leaf total phenolics, hydrogen peroxide(H_2 O_2), ascorbic acid(AsA), GB contents,activities of enzymes(CAT, SOD and POD), total soluble proteins, leaf epidermis(abaxial and adaxial)thickness, bulliform cell area, sclerenchyma thickness, root endodermis and epidermis thickness, root metaxylem area, stem metaxylem area and stem sclerenchyma thickness in both oat cultivars.Foliar-applied 100 mM GB suppressed H_2 O_2 contents, while improved growth attributes, free proline and GB contents, activity of SOD enzyme, leaf abaxial epidermis thickness, leaf bulliform cell area, leaf midrib thickness, leaf sclerenchyma thickness, root cortex thickness, root endodermis, epidermis thickness,root stele diameter, stem diameter, stem epidermis thickness, stem metaxylem area, and stem phloem and vascular bundle area in both oat cultivars. For both oat cultivars, CK-1 was superior to F-411 in leaf abaxial epidermis thickness, leaf mesophyll, leaf sclerenchyma, root metaxylem area, stem diameter, stem epidermis, sclerenchyma thickness, stem metaxylem area, and stem vascular bundle area. Overall, both oat cultivars showed inconsistent behavior to water stress and foliar-applied GB in terms of different physio-biochemical attributes, however, CK-1 was superior to F-411 in a number of anatomical features of leaf, root, and stem. | Anum SHEHZADI Nudrat A AKRAM Ayaz ALI Muhammad ASHRAF | 2019 | Journal of Arid Land2019，11，2： | 0 |
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