Climatic resilience of wheat is its capacity to absorb disorder, maintain, self-organization while retaining the same basic structure and ways of functioning, adaptating to stress and change. The present studies were conducted with the objectives (a) to understand wheat crop biodynamism and its relation with yield under variable climatic conditions of Pothwar, (b) to parameterize and evaluate the APSIM-wheat module under variable local environmental conditions (c) to enhance understanding about the resilience of wheat under rainfed conditions using APSIM. Field trials on wheat were performed during two wheat growing environments from 2008 to 2010 at high (Islamabad), medium (Chakwal) and low (Talagang) rainfall zones of Pothwar. A Randomized complete block design was used and three wheat genotypes (Chakwal-50, Wafaq-2001 and GA-2002) were replicated four times among five planting windows denoted as PW''s. The PW‘s as management‘s starts from October and ended at the start of December. These five planting windows were denoted as PW1 (Sowing between 10-20 October), PW2 (Sowing between 21-31 October), PW3 (Sowing between 1-10 November), PW4 (Sowing between 11-20 November) and PW5 (Sowing between 01-10 December). Daily rainfall data (1961-2010) were obtained from the Pakistan Meteorological Department. Soil water dynamics recorded layer wise at pre-sowing, three leaf, tillering anthesis and maturity stages of crop showed significant variability at different locations among PW‘s and environments. Significant differences were observed in the pattern of emergence rate index (ERI), growth, drymatter accumulation, yield and grain quality of wheat crop at three locations among PW‘s and during two environments (2008-09 and 2009-10). The number of days for phenological development of crop (Z13, Z20, Z60 and Z92) remained statistically higher at Islamabad during 2008-09 as compared to other locations and second environment. Dry matter accumulation at three leaf and anthesis stage remained significantly different during two environments, three locations and planting windows. However, decline in drymatter at Talagang, late sowing and during 2009- 10 was due to prevailing stresses in the form of moisture and temperature. The xxvii trend of growth dynamics (crop growth rate (CGR) and net assimilation rate (NAR)) remained greater during 2008-09 for PW2 at Islamabad while lowest at Talagang and during 2009-10. The CGR and NAR reduction was recorded for all genotypes from Islamabad to Talagang moving from PW1 to PW5. Physiological parameters like stomatal conductance (gs), Stomatal resistance (rs), Net Photosynthetic rate (An), Transpiration rate (E) and Intercellular CO2 (Ci) were significantly affected due to treatments (environments, locations, PW‘s and genotypes). The maximum stomatal conductance recorded during 2008- 09 (0.639 mole m-2 sec-1) while minimum noted during 2009-10 (0.498 mole m-2 sec-1). However, stomatal resistance remained inverse to conductance among treatments. Similarly, significant variability in SPAD chlorophyll contents and proline concentration recorded at anthesis among treatments. Grain yield reduced for all genotypes with change in planting windows during two environments at three variable locations. Quantification of this yield to environmental variables depicted reduction (65 kg/ha/day) across the genotypes and environments. Similar trend was observed for other yield components. The Agricultural Production System Simulator (APSIM) was evaluated and parameterized as a bioinformatics tool using wheat crop, soil and climatic data of three locations of Pothwar. The optimization and modification of various genotype coefficients lead to goodness of fit between simulated and observed data regarding the occurrence of anthesis and maturity by accurately regulating the phasic development of the genotypes used in this study. This improvement in the models ability also improved the simulation capabilities of the model regarding days after sowing, leaf area index (LAI), drymatter accumulation, yield, harvest index (HI) and total soil water extraction across treatments. The validated crop simulation model was used as decision support tool for selecting optimum planting window and genotypes at different locations during variable environments. The simulation analysis regarding partioning of yield across PW‘s at different locations among genotypes showed that sowing after PW3 was more vulnerable to climate fluctuations governed by SOI phases in July. The long term APSIM analysis depicted that increase or decrease in wheat yield is linked with rainfall variability governed by Southern Oscillation Index (SOI) phases in July. The analysis using probabilistic approach based on long term rainfall variability revealed 44, 40 and 35 % possibility of exceeding median rain for Islamabad, Chakwal and Talagang when SOI phase in July is near zero, whereas possibility of exceeding 35, 34 and 33% possibility of exceeding median rain at Islamabad, Chakwal and Talagang is linked with negative SOI phase in July. Similarly, model forecasted monsoon (JAS), early wheat growing season (NDJ), end wheat growing season (FMA) and total growing season rainfall (NDJFMA) with good accuracy and skill scores. Further work is suggested to link climatic variability all over Pakistan with SOI and SSTs so that risk management tools can be used in the agricultural system management to maintained yield sustainability. Similarly use of simulation techniques like APSIM and ―R‖ as decision making tool based upon long term climatic data need to be used for development of agriculture sector.
مولانا یعقوب الرحمن عثمانی افسوس ہے کہ ہماری بزم احباب کی ایک شمع دل فروز اٹھ گئی یعنی مولانا یعقوب الرحمن صاحب عثمانی نے ۵۴ سال کی عمر میں ۱۰/فروری کواپنے وطن دیوبند میں انتقال کیا۔مرحوم دیوبند کے عثمانی خاندان سے تعلق رکھتے تھے اوراس تقریب سے مولانا مفتی عزیز الرحمن اورحضرت الاستاذ مولانا شبیر احمد عثمانی کے بھتیجے تھے۔ ذہانت وفطانت ان کا خاندانی ورثہ اورعلم وادب کے ساتھ لگاؤ ان کا آبائی ترکہ تھا۔ اسلامی علوم وفنون کی تکمیل دارالعلوم دیوبند میں کی اورہمیشہ اپنی جماعت میں ممتاز رہے۔ فراغت کے بعد دوایک سال یہیں معین المدرس رہے اور پھر حیدرآباد چلے گئے، جہاں پہلے عرصہ تک ورنگل کالج میں پروفیسر رہے اور اس کے بعد جامعہ عثمانیہ میں شعبۂ دینیات کے استاذہوگئے۔ آخرایک سال ہوا کہ یہیں سے پنشن لے کر وطن مالوف میں آبسے۔ عمائد دارالعلوم دیوبند نے مرحوم کی اہلیتوں اورصلاحیتوں کے پیش نظران کو جمعیۃ طلبائے دارالعلوم کانگراں کار مقرر کردیا۔اس عہدہ پرکام کرتے ہوئے ابھی چندماہ ہی ہوئے تھے کہ اجل کا پیام آپہنچا۔ قدرت نے مرحوم کوگوناگوں صلاحیتوں اور قابلیتوں سے نوازا تھا، حسن تقریر وخطابت کاجوہر ان میں فطری تھا اورطالب علمی کے دور میں بھی مسلسل مشق وتمرین کے ذریعہ انھوں نے اس میں اتنا کمال پیدا کرلیا تھا کہ تحریک خلافت کے سلسلہ میں ملک کے مختلف گوشوں میں جو جلسے ہوتے تھے ان میں دارالعلوم دیوبند کے نمایندہ کی حیثیت سے شرکت کرتے اور حاضرین سے حسن خطابت کی داد لیتے تھے۔ اردو میں شعر بھی کہتے تھے، تصنیف وتالیف کاذوق بھی رکھتے تھے، نئی معلومات کوخوش اسلوبی کے ساتھ پیش کرنے کا بہت اچھا سلیقہ تھا۔ کلام اقبال کے والہ وشیداتھے اورحیدرآباد کے زمانۂ قیام میں بعض خاص خاص ارباب ذوق طلبا اورغیر طلبا کوباقاعدہ اس کا درس بھی دیتے تھے۔ ان سب سے...
Travancore was the first and foremost among the princely states of India to receive the message of Jesus Christ. According to tradition, St. Thomas the Apostle came to India in 52 A.D. He made many conversions along the west coast of India. It had to the beginning of the Christian Community in India from the early Christian era. He attained martyrdom in 72 A.D. At Calamina in St. Thomas mount, Madras. He was the first to be sacrificed for the sake of Christ in India. During the close of the second century A.D. The Gospel reached the people of southern most part of India, Travancore. Emperor Constantine deputed Theophilus to India in 354 A.D. To preach the Gospel. During this time the persecution of Christians in Persia seemed to have brought many Christian refugees to Malabar coast and after their arrival it strengthened the Christian community there. During the 4th century A.D. Thomas of Cana, a merchant from West Asia came to Malabar and converted many people. During the 6th century A.D. Theodore, a monk, visited India and reported the existence of a church and a few Christian groups at Mylapore and the monastery of St. Thomas in India. Joannes De Maringoly, Papal Legate who visited Malabar in 1348 has given evidence of the existence of a Latin Church at Quilon. Hosten noted many settlements from Karachi to Cape Comorin and from Cape Comorin to Mylapore. The Portuguese were the first European power to establish their power in India. Under the Portuguese, Christians experienced several changes in their general life and religion. Vas-co-da-gama reached Calicut on May 17, 1498. His arrival marked a new epoch in the history of Christianity in India. Many Syrian Catholics were brought into the Roman Catholic fold and made India, the most Catholic country in the East. Between 1535 to 1537 a group of Paravas were converted to Christianity by the Portuguese. In 1544 a group of fishermen were converted to Christian religion. St. Francis Xavier came to India in the year 1542. He is known as the second Apostle of India. He laid the foundation of Latin Christianity in Travancore. He could make many conversions. He is said to have baptized 30,000 people in South India. Roman Congregation of the propagation of Faith formed a Nemom Mission in 1622. The conversion of the Nairs was given much priority. As a result, several Nairs followed Christian faith particularly around Nemom about 8 k.m. South of Trivandrum. Ettuvitu pillaimars, the feudal chiefs began to persecute the Christians of the Nemom Mission. Martyr Devasahayam, belonged to the Nair community and was executed during the reign of Marthandavarma (1729-1758). It is an important chapter in the History of Christianity in South India in general, and of Travancore in particular.
This dissertation investigates and describes the concept of soliton and shock formation in plasma. A rigorous theoretical investigation is made to find energy of EASWs in unmagnetized collisionless plasma. By employing reductive perturbation method, KdV equation is derived for kappa and Cairns distributed electrons. HPM technique is used to handle KdV equation. The consequences of different parameters ? (spectral index) and ? = ??/?? on soliton profile are discussed. Secondly, soliton and shock formation is studied in a magnetized rotating plasma using Cairns distribution. An admitted solitary wave solution KdV equation and an admitted travelling wave solution KdVB equation are derived. HPM technique is applied on derived KdV equation and ???ℎ-method on derived KdVB equation. It is noticed that ? = ?ℎ/??, ? = ?0?/?0ℎ affect both the soliton width and amplitude. It is also noticed that ? = ??/??, ? = ?0?/?0ℎ, kinematic viscosity and angular frequency affect the structure of shocks. Thirdly, solitons in ion-temperaturegradient (ITG) mode in a plasma are studied. Using Braginskii’s model, KdV equation in ITG mode is derived. Dependence of soliton width and amplitude on parameters ?? = ??/ ??, ? = ?? /??, and ?0 is discussed. After that, solitons formation is studied in electron-temperaturegradient (ETG) mode in a plasma. Using Braginskii’s model linear dispersion relation and KdV equation for the ETG mode are derived. It is observed that the ETG mode supports only rarefactive solitons. It is also observed that soliton profile is sensitive to ? = ??/??, ?? = ??/?? and ?0. As finding of the connection of entropy with density and temperature of plasmas gives an incitement to investigate different entropy based plasma models. Therefore, using Braginskii’s model dispersion relation and KdV for ITG mode in presence of entropy drift are derived. It is noticed only compressive solitons can be generated in this mode. It is found that entropy enhances soliton amplitude and width. It is also found that in presence of entropy drift increasing magnetic field and ion temperature enhance the soliton profile. Lastly, nonlinear dissipative one and twodimensional structures (shocks) are investigated in nonuniform magnetized plasma with respect to entropy. The dissipation comes in the medium through ion-neutral collisions. Linear dispersion relation is derived. KdVB and KPB equations are derived for nonlinear drift waves in 1-D and 2- D by employing the drift approximation. It is found that ??/? plays a significant role in the shocks formation. It is noticed that ??/? determines the rarefactive and compressive nature of the shocks. It is observed upper and lower bounds exist for the shocks velocity. It is also observed that the existing regimes for both one and two-dimensional shocks for kappa distributed electrons are different from shocks with Cairns distributed electrons. Both rarefactive and compressive shocks are found for the 1-D drift waves with kappa distributed electrons. Interestingly, it is noticed that entropy enhances the strength of one and two-dimensional shocks.