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Search Results: 1 - 10 of 11923 matches for " *Muhammad Shahid Iqbal 2 "
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New Fourth and Fifth-Order Iterative Methods for Solving Nonlinear Equations  [PDF]
Muhammad Saqib, Muhammad Iqbal, Shahid Ali, Tariq Ismaeel
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.68114
Abstract: In this paper, we establish two new iterative methods of order four and five by using modified homotopy perturbation technique. We also present the convergence analysis of these iterative methods. To assess the validity and performance of these iterative methods, we have applied to solve some nonlinear problems.
New Modification of Fixed Point Iterative Method for Solving Nonlinear Equations  [PDF]
Muhammad Saqib, Muhammad Iqbal, Shahzad Ahmed, Shahid Ali, Tariq Ismaeel
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.611163
Abstract: In this paper, we have modified fixed point method and have established two new iterative methods of order two and three. We have discussed their convergence analysis and comparison with some other existing iterative methods for solving nonlinear equations.
Genetic variability, heritability and genetic advance for yield and yield components in sunflower (Helianthus annuus L.).
S.M. Fida Hassan1, *Muhammad Shahid Iqbal 2, Ghulam Rabbani1, Naeem-ud-Din1and Ghulam Shabbir
Electronic Journal of Plant Breeding , 2012,
Abstract: Ten genotypes of sunflower were evaluated in the field following a randomized complete block design with three replications forplant height, stem diameter at base, inter nodal length, head diameter, number of whorls per head, achene weight per head, 100achene weight, achene oil and protein contents. Highly significant differences were observed for all the characters in allgenotypes. Characters like plant height, oil contents, protein contents and achene weight per head showed high heritability withmoderate genetic advance.
Chemical Control of Monocot Weeds in Wheat (Triticum aestivum L.)  [PDF]
Zia Mehmood, Muhammad Ashiq, Ijaz Rasool Noorka, Amjed Ali, Saba Tabasum, Muhammad Shahid Iqbal
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.59140

Due to similar growth pattern and morphology, monocot weeds offer more severe competition with wheat. A field experiment was conducted to screen herbicides most suitable for the control of monocot weeds in wheat. Seven herbicides viz., Puma super 69EW @ 862.5 g a.i. ha-1, Bristle 69 EW @ 1250 ml, Topik 15WP @ 37.05 g a.i. ha-1, Safener15WP @ 247g, Certain 80WD @ 395.2 g and Tremor 24EC @ 247 ml/ha were used. Weedy check where no weed control was practiced was kept as control. All herbicides were sprayed as post-emergence with second irrigation 38 days after crop sowing. The best weed control was accomplished by Safener 15WP 247 g ha-1 as significantly lower weed counts per m2 (11.0) and higher percent weed control (73.4%) were noted after 21 days of its spray. Wheat growth parameters like plant height, number of tillers per m2, spike length and number of spikelets per spike remained statistically at par among various treatments. Significantly higher number of grains per spike (55.67) and 1000 grain weight (36 g) were noted with Puma Super 69EW @ 1250 ml ha-1 and Certain 80WD 395.2 g ha-1, respectively. Although treatments did not differ significantly with respect to wheat grain and biological yields, yet the highest grain yield (3708.3 kg ha-1) and biological yield (10208.3 kg ha-1

Genetic Variations and Cultivar Purity within the G. hirsutum Cultivars via RAPD Marker  [PDF]
Farah Raheel, Muhammad Kauser Nawaz Shah, Muhammad Shahid Iqbal, Ijaz Rasool Noorka, Zareen Sarfraz
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.62045
Abstract: To assess genetic variation within a cultivar, four commercial varieties with five individual G. hirsutum genotypes and their bulk were assayed with selected forty 10-mer RAPDs per cultivar via PCR. CIM-473 cultivar showed amplification of 321 bands in total per primer with an average of 8 bands. A range of similarity i.e.; 80% - 100% within the cultivar has been observed for minimum and maximum respectively. CIM-448 showed amplification of 300 bands in total per primer with an average of 7.5 bands. Maximum similarity of 95% and minimum similarity of 84% was observed within the cultivar. In CIM-1100 the total numbers of fragments amplified are 304, with the average of 7.6 bands per primer and are 12% - 20% polymorphic. Similarly, in NIAB-78 the total numbers of fragments amplified were 310, with the average of 7.7 bands per primer. The reliability of RAPD technique for finding genetic resemblances is indicated by the mentioned results. Numerous groups within 5 individual genotypes bulk among 4 cultivars of G. hirsutum L. have been through cluster analysis which was by the unweighted pair group method of arithmetic means (UPGMA). Dendrograms have been used for showing cultivar relationship.
Path Coefficient Analysis in Different Genotypes of Soybean (Glycine max (L) Merril)
Shahid Iqbal,Tariq Mahmood,Tahira,Muhammad Ali
Pakistan Journal of Biological Sciences , 2003,
Abstract: Interrelationships between yield and its components were determined by genotypic correlation and path coefficient analysis in ten soybean varieties. The results indicated that seed yield plant ̄1 was positively and significantly associated with all parameters studied. The results also showed that pods plant ̄1 has maximum positive direct effect on yield plant ̄1. It was followed by 100 seed weight and seeds pod ̄1. Plant height had negative direct effect on yield plant ̄1. It was concluded that pods plant ̄1, seeds pod-` and 100 seed weight were the main yield components.
Renal Clearance of Endogenous Creatinine and Doxycycline in Male Volunteers
Fozia Ghani,Tahira Iqbal,Muhammad Shahid
Journal of Medical Sciences , 2003,
Abstract: Doxycycline is a broad spectrum antibiotic that inhibits protein synthesis in bacteria. Renal clearance of the drug and that of endogenous creatinine was determined by oral administration of 2 H 100 mg doxycycline in healthy male volunteers. Before drug administration control samples and after drug administration blood and urine samples were collected, at predetermined time periods. The samples were assayed for endogenous creatinine by spectrophotometric methods and doxycycline by microbiological assay. Mean " SE values for the blood and urine pH mean were 7.81 " 0.030 and 6.13 " 0.187, respectively. The rate of urine flow (diuresis) was 0.056 " 0.011 ml/min/kg and creatinine was cleared at rate of 1.109 " 0.386 ml/min/kg of body weight. Average " SE value for doxycycline clearance was 0.49 " 0.056 ml/min/kg and mean " SE value for clearance ratio was 1.046 " 0.366. A significant positive correlation between diuresis and renal clearance of doxycycline indicate the back diffusion or reabsorption of the drug.
Effect of Various Rootstocks on Vigour and Productivity of Kinnow Mandarin
Shahid Iqbal,Muhammad Ibrahim Chaudhary,Muhammad Akber Anjum
Pakistan Journal of Biological Sciences , 1999,
Abstract: The performance of Kinnow mandarin (Citrus reticulata Blanco) on six citrus rootstock i.e Citumelo 4452, Citumelo 1452, Volkamariana, Yuma citrange, Mithi and Rough lemon was studies during its sixth and seventh year of transplanting. Plant height was not affected by the rootstocks used. Maximum canopy spread and stem girth was recorded on Mithi while minimum canopy spread and stem girth were on Yuma citrange and Citrumelo 1452 respectively. Fruit set was not influenced significantly by the rootstocks used. Although fruit drops in grafted plants ranged from 35.75-93.33 per cent from button to pre-harvest drop, the rootstock means in each drop were non-significantly. The highest mean number of fruits/plant was 285 fruits on Citrumelo 4475 and the lowest 77.5 fruits on Yuma citrange rootstock.
Genetic Variability and Heritability Estimates in Summer Mustard (Brassica juncea)
Tariq Mahmood,Muhammad Ali,Shahid Iqbal,Muhammad Anwar
Asian Journal of Plant Sciences , 2003,
Abstract: In mustard (Brassica juncea) broad-sense heritabilities, coefficients of variability and genetics advance values were computed for primary branches, plant height, siliquas per plant and seed yield per plant in four single crosses. Number of siliquas per plant were highly heritable coupled with high genetic advance and coefficient of variability. It reflected a great scope for selection. Cross combinations 86-4-3 x Poorbi Raya and 86-16-1 x Poorbi Raya were particularly valuable for various characters. They gave high heritability and genetics advance for most characters. Indicating that selection should lead to a fast genetic improvement of the material.
Heterosis for Some Quantitative Characters in Brassica juncea L.
Tariq Mahmood,Muhammad Ali,Muhammad Anwar,Shahid Iqbal
Asian Journal of Plant Sciences , 2003,
Abstract: Five cross of Brassica juncea viz., SMP 13-78 x Zem-I, SML 31E x Zem-I, DL 8 x Zem-I, SM 83000 x Zem-I, Pr 171-71 x Zem-I were made. These crosses (F1`s) along with their parents were sown and heterosis was studied for branches per plant, plant height (cm), number of siliquas and yield per plant (g) in F1 generation. It was found that a cross of SMP 13-78 x Zem-I showed maximum heterosis and heterobeltotic for all the characters studied. Therefore, this cross combination can fruitfully be utilized for improving yield and its components in future breeding programmes.
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