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Articles by M. Aslam
Total Records ( 15 ) for M. Aslam
  A. R. Raja , K. H. Shah , M. Aslam and M. Y. Memon
  A pot study was conducted to assess the significance of phosphobacterial and mycorrhizal inoculation in wheat. The results showed that phosphobacterial counts before sowing and after harvesting of wheat were significantly improved as compared to their respective control treatments. Highest phosphobacterial estimates of 86.25 x 108 g -1 soil recorded in P fertilizer treatment were statistically identical to 80.25 x 108 g -1 soil obtained with phosphobacterial inoculation. Moreover, yield and yield attributes in wheat were also affected significantly by phosphobacterial inoculation. The grain yield of 15.20 g/pot recorded with 100 kg ha -1 of applied P was statistically similar to 13.97 g /pot obtained from phosphobacterial treatment.
  K. H. Shah , S. H. Siddiqui , M. Y. Memon , M. Imtiaz and M. Aslam
  The study was undertaken to determine the performance of cotton and mungbean, when grown simultaneously in different geometric proportions and fertilized by various methods. Compared to sole cropping, the yield of interplanted cotton was reduced significantly by increasing the density of recessive component of intercropping system. The reduction in seed cotton yield was accounted to be 30% in 1:1 and 40% in 1:2 cotton-mungbean planting geometry. However, statistically similar seed cotton yield to that of sole cotton was recorded from the system following 2:1 row arrangements of cotton and mungbean. Fertilizer N applied by banding alongside the rows of cotton produced significantly higher seed cotton yield as compared to broadcast applications, whereas, N applied through broadcast method over entire plot led to higher mungbean harvest when compared with the treatment receiving fertilizer N by banding technique. Cotton and mungbean interplanted according to 2:1 row arrangements surfaced as the most compatible system by producing combined yield of 4465 kg ha -1, which was 18.7% higher than monoculture cotton.
  M. Akhtar , M. S. Cheema , Moazzam Jamil , M. Rashad Farooq and M. Aslam
  The experiment was conducted to evaluate the maximum yield potential of cotton as effected by plant population for four short statured varieties viz., NIAB-Karishma, NIAB-78, CIM-443 and CIM-448 planted at spacings 10, 20, and 30 cm with rows at 75 cm apart. Maximum seed cotton yield 2657 kg ha-1 was recorded when plant spacing was 30 cm for all the varieties closely followed by 2640 kg ha-1 for the treatment, where plant spacing was 20 cm. The minimum values were obtained at plant spacing of 10 cm.
  K.H. Shah , S.H. Siddiqui , M.Y. Memon , M. Aslam , M. Imtiaz and P. Khan
  Low native soil P availability coupled with poor recovery of added P has become one of the major constraints limiting the productivity of crops. A field study was, therefore, conducted to compare the relative significance of fertigation and different modes of broadcast method for utilization of P when applied at the rate of 100 kg ha-1 in wheat crop. Compared to broadcast method, P applied through fertigation in single split was effectively utilized in terms of producing significantly higher crop harvests, P uptake, P recovery and agronomic efficiency. Owing to superiority of fertigation over broadcast method, it is being introduced to farming community for economizing fertilizer P and obtaining better crop harvests.
  M. Imtiaz , B.J. Alloway , K.H. Shah , S.H. Siddiqui , M.Y. Memon , M. Aslam and P. Khan
  The study was carried out to assess the Zn contents of prominent domestic wheat varieties and the varieties collected from different countries. The study reveals that Zn concentrations in the seed of different genotypes ranged between 10.3 to 34.7 µg g-1. The highest Zn concentrations (34.7 µg g-1) were recorded in the seed of wheat cultivar Pirsabak from Pakistan whereas the lowest concentrations were found in Turkish variety CBWF-96-151. Zinc contents within seed of genotypes under study ranged between 0.40 µg/seed to 1.39 µg/seed.
  S. Firdous , M. Ikram , M. Nawaz and M. Aslam
  In this study the chicken breast skin tissues were illuminated with collimated radiation of 400-700 nm Nd-YAG pumped dye laser and measured skin optical properties for dry and hydrated sample in vitro. Total reflectance and transmitted intensities were recorded by which scattering, absorption and anisotropic factors of the sample obtained using double integrating sphere setup. The in vitro optical parameters are higher then in vivo measurements. Our in vitro results are in agreements with other data available in literature. Hydration of skin is found to influence its scattering properties. Dry sample scatter less then hydrated sample. Skin auto-florescence spectra were acquired under different excitation wavelength, it shows difference between normal and malignant tissues.
  Imtiaz Hussain , M. Aslam , S.K. Tanveer , M. Sohail and N.S. Kissana
  Direct drilling of wheat in to rice stubbles through zero tillage drill has eliminated the time for land preparation and improved crop stand establishment. In rice-wheat area, the adoption of zero-tillage is growing with the passage of time. The study was performed in Kala Shaha Kaku and Muridkay during 1998-99 to determine the optimum time for first irrigation and nitrogen application in zero tillage wheat in rice-wheat area of Punjab. In the first trial, the treatments included first irrigation at sowing, at emergence, two weeks after emergence and four weeks after emergence. In the second trial, treatments included all nitrogen dressed at sowing, half nitrogen dressed at sowing and half at first irrigation and all nitrogen broadcasted at first irrigation and all nitrogen broadcasted at sowing. The results indicated that emergence, tillering, grain and biological yield was significantly higher when the first irrigation was applied 2 to 4 weeks after emergence. Timing of nitrogen application did not significantly affect the heads per m2, grain yield and biological yield of zero tillage wheat. However, the split application of urea at planting and at first irrigation could improve zero tillage wheat production.
  M. A. Naeem , R. H. Qureshi , M. Aslam , R. Ahmad , N. Ahmad , A. Hussain , M. Saleem and K. Hussain
  In order to determine genetic diversity of NRI against NaCl salinity, a study in hydropnic system was carried out with 60 plants of NRI at 70 ml m-3 NaCl salinity. Plants were grown up to maturity and on the basis of growth and paddy yield, the plant population of NR-I was divided into five tolerance classes and corresponding values of K+, Na+, Cl-, K:Na and P:Zn ratio were averaged and relationships of these parameters with the salt-tolerance character was evaluated. The study revealed that salt tolerance of various population groups was correlated with the exclusion of Na+ and Cl-, better maintenance of K+, high K:Na and low P:Zn ratios in the leaves. The chemical composition of leaves depends upon the age of the leaf.
  M. A. Naeem , R. H. Qureshi , M. Aslam and R. Ahmad
  Salt tolerance is a complex phenomenon and external Zn:P ratio seems to be related to the salinity tolerance of rice. A study on two rice lines with varying salinity tolerance was conducted in solution culture with different enternal Zn:P ratios in the presence (70 mol m-3 NaCl) and absence of NaCl salinity. A high Zn concentration under saline conditions as compared to in the normal Yoshida nutrient solution was required for better yield. Better growth of rice under different external Zn:P ratios was apparently related to the ionic composition of the leaf sap: there was an inverse relationship with moderately high Zn concentration (Zn:P ratio of 2.1000) in the external medium and the concentration of Na+ and Cl, P and Ca2+, and a positive relationship with K+ and Zn concentrations. It also improved the K+:Na+ ratios in the leaf.
  Jehan Zeb , Shahid Ahmad , M. Aslam and Taj Ali Khan
  A study was conducted at the WRRI-NARC, Islamabad under controlled conditions of rainfall and high temperatures to simulate hot-arid environment for establishment of plants like Eucalyptus camaldulensis and Acacia arabica in plastic bags with an objective to reduce volume of water required for establishment and to achieve higher survival rates. The results indicated that number of irrigations were reduced to half under bags of 20 x30 size compared to control and volume of water used, was reduced by 60-70 per cent. The irrigation interval was almost doubled in 20 x30 polyethylene bags compared to control. The volume of water per irrigation also reduced by 27-55 per cent, reducing the irrigation cost considerably. The peak daily reference crop evapotranspiration (ETr) of 9.41 mm/day was observed during June. Water requirement was reduced to about 1/4th of the ETr in plastic bags compared to about 3/4th of the ETr in control. The increase in water use efficiency for plastic bags was 4-5 times that of the control. Plastic bag of 20 x30 size resulted in 16 per cent increase in growth for Eucalyptus. The increase was around 59 per cent for Kikar under bag size of 18 x24 compared to control.
  M. Aslam
  Not Available
  Iqbal M. , M. Aslam , A. M. Ranjha and J. Akhtar
  In a solution culture study two rice varieties i.e. KS-282 (salt tolerant) and BG 402-4 (salt sensitive) were grown to determine the effect of Zn applied @ 1, 10, 100 and 1000 nM ZnSO4 on shoot fresh weight and concentration of Na, K, Cl, Zn and P, when exposed to NaCl salinity (0 and 70 mol m-3 NaCl). Addition of Zn caused increase in shoot fresh weight under both saline and non-saline conditions, however growth was higher under O salinity. Concentration of Zn, P and K were increased while those of Na and Cl decreased in shoot under saline conditions. Salt tolerance rice maintained low concentration of Na, Cl and P but higher that of Zn and K.
  Muhammad Rasheed , M. Anjum Ali , Nasir Saleem , M. Asif and M. Aslam
  A factorial experiment comprised of two varieties viz. B-385 (V2) and KS-282 (V1) along with four fertilizer treatments, was conducted at University of Agriculture, Faisalabad. The treatments for nitrogen application techniques used were T1 (control), T2 (½ N + total P + total K applied at transplanting). T3 (1/3 N at transplanting, 1/3 N at tillering and 1/3 N at flowering stage) and T4 (total NPK applied at transplanting). V1 produced more panicles bearing tillers (7.76), 1000-grain weight (22.97 gm), paddy yield (2.92 kg), No. of tillers (8.16), No. of spikelets (122.4), 1000-grain weight (23.64), yield (2.85 kg) and harvest index (30.275). The treatment T2 followed the T3 in the above mentioned parameters which were statistically at par. PK-NK% were non-significant whereas to NK% are also behave similarly under different treatments. Tillering, panicle formation and seed setting are the critical stages contributing maximum to yield. The application of fertilizer in three split dose with a little more stress at panicle initiation stage is best technique to increase paddy yield.
  M. Shafi Nazir , Abdul Jabbar , Zubair Waheed , Abdul Ghaffar and M. Aslam
  The seeding rates were 100 and 150 kg ha–1 while the nitrogen levels comprised 100, 150 and 200 kg ha–1 with five split application treatments viz. full at sowing, full with first irrigation, half at sowing and half with first irrigation, two third at sowing+one third with first irrigation and one third at sowing+One third with first irrigation+one third with second irrigation along with a basic dose of 100 kg ha–1 each of P and K applied at sowing. The crop was planted on December 19. The highest grain yield of 3585 kg ha–1 was obtained from plots given nitrogen full at sowing at 150 kg ha–1 followed by 3334 kg ha–1 in plots given nitrogen in two splits i.e., two third at sowing and one third with first irrigation. However, higher seeding rate (150 kg ha–1 ) tended to increase grain yield ha–1 with a nitrogen rate of 150 kg ha–1. By contrast, grain protein contents were the highest (12.26%) in crop fertilized with 150 kg ha–1 full at sowing and seeded at 100 kg ha–1.
  K.H. Shah , M.Y. Memon , S.H. Siddiqui , M. Imtiaz and M. Aslam
  Field investigations were carried out to evaluate the performance of two wheat genotypes when sprayed at different growth stages using 2, 4 and 6% urea solution. Compared to standard soil application, foliarly applied urea was betterly utilized by Soghat-90 and Sind-81. Irrespective of growth stages, foliage efficacy of urea was most prominent at 4% solution. Significantly higher crop harvests, N uptake and agronomic efficiency were recorded when both wheat cultivars were sprayed at tillering and heading stages. Grain protein content was improved by late season spraying with 6% urea solution.
 
 
 
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