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Articles by M. Ayub
Total Records ( 10 ) for M. Ayub
  Javid Ullah , Mian Hamayoun , Taufiq Ahmad , M. Ayub and M. Zafarullah
  Efficiency of natural oil i.e. red pepper oil against auto and photo-oxidative deterioration of sunflower and soybean oil was studied. The results showed a marked increase in peroxide value and free fatty acids during storage under fluorescent light, ambient and dark conditions. Applications of synthetic antioxidants i.e. butilated hydroxy toluene (BHT) and a natural antioxidant of red pepper oil have markedly reduced the rate of peroxidation in oils during exposure to light for five weeks storage. However, the BHT proved better antioxidation influence than red pepper oil. However, the effect of red pepper oil was also found acceptable in retarding rancidity occurred by per oxide value, free fatty acids and color value.
  M. Ayub , A.Tanveer , M. Adil Choudhry and M.R. Khalid
  Growth and yield performance of different varieties of sugarcane viz., L-118, BF-166, CO-1321, CP-57-614, HF-152, HF-150, HF-147, BF-162, CO-975 and CP-75-300 was evaluated under field conditions. The growth characteristics like millable canes, cane length, cane diameter and weight per cane varied significantly among the cultivars. The cultivar CP-57-614 produced significantly higher cane yield (110 t ha 1) than all other varieties. The lowest cane yield (51 t ha 1) was obtained from CP-75-300. BF-162 gave the highest sucrose content (19.78%) and commercial cane sugar (13.64%). Keeping in view quality and yield the variety CP-57-614 proved better than rest of the varieties.
  Tabinda , A. B, Moazzam Ali Khan , Omm-e-Hany , M. Ayub , M. Hussain , A. Yasar and M. Altaf Khan
  Phytoplankton being primary producers in an aquatic habitat play a key role in the production of fishes in water body. Besides a number of other important factors their abundance depends upon various water quality parameters. This study was conducted to assess the relationship between water quality parameters of Deg Nullah and phytoplankton. Physical and chemical parameters studied during the present study were pH, Temperature, Turbidity, Total dissolved solids, Alkalinity, Carbon dioxide, Dissolved oxygen and Hardness. Phytoplankton community was also studied and their relative abundance was estimated using standard techniques. Finally multiple regression models of the predominant species were developed in relation with above mentioned water quality parameters to asses the effect of these parameters on phytoplankton and the overall ecology of Deg Nullah upstream.
  Himayatullah Khan , Khalil Ahmad , M. Qasim and M. Ayub
  An experiment was conducted to study the feasibility of intercropping Mungbean in Guara sown at 30, 45, 60 and 75 cm spaced single, double, triple and four row strips, respectively. Guara sown at 45 cm spaced double-row strips with two rows of Mungbean produced significantly more number of branches, grain and stalk yield ha-1 while number of branches and stalk yield of mungbean were not effected significantly. However, the grain yield of Mungbean was increased significantly in the intercropping system. Among the different planting patterns, guara planted in 45 cm spaced double-row strips in association with two rows of mungbean gave the highest land equivalent ratio (LER) of 1.55.
  M. Ayub , I. A.P. Dewi and A. Tanveer
  A pot experiment was conducted to evaluate the effect of nitrogen levels (0, 50, and 100 kg ha-1) on grain yield, yield components and quality of barley grain. Grain yield was increased progressively with nitrogen application up to 100 kg ha-1. Higher grain yield with nitrogen application was related to higher number of fertile tillers, number of grains per spike and 1000-grain weight. 50 and 100 kg N ha-1 gave significantly lower grain crude protein percentage both in grain and straw than O kg N ha-1. Modified acid detergent fibre percentage of straw and grain was not affected by the application of nitrogen.
  M. Ayub , A. Tanveer , M.Z. Amin , M.S.Sharar and A. Pervaiz
  A field experiment was conducted to compare the response of sunflower cultivar SF-187 to muriate and sulphate of potash, each at 0,50, 100 and 150 kg ha-1. Different sources and levels of K did not significantly affect the plant height, stem diameter, 1000-achene weight and harvest index. However, leaf area per plant, stalk yield, number of achene head-1, seed yield and oil contents were affected significantly by K2O levels. A significant increase in seed yield and oil contents was observed upto 100 kg ha-1 but both these parameters were decreased beyond this limit. A decrease of 26 and 20 per cent in seed yield was noted by potassium application at the rate of 150 kg ha-1 in the form of sulphate of potash and muriate of potash respectively. The application of potash more than 100 kg ha-1 seems to be uneconomical to sunflower in Faisalabad conditions.
  A. Tanveer , M. Ayub , R. Ahmad and A. Ali
  A field study was conducted to evaluate the effect of adding a wetting agent to 2, 4-D on weed control in wheat. Triton @ 200 and 250 was used as wetting agent with recommended (1.3 kg ha-1) and reduced rate (1.00 kg ha-1) of 2, 4-D . Weedy check and sole application of 2, 4-D was also included for comparision. Different weed control treatments significantly reduced the weed population compared to weedy check. Appliction of 2, 4-D @ 1.3 kg ha-1 added with wetting agent @ 200 ml kg-1 of 2, 4-D gave 39 per cent more grain yield than weedy check.
  Asif Tanveer , M. Ayub and A. Ali
  Five substituted area based herbicides namely Isoproturon (Alrelon 500 FW), Isoproturon + Diflufenican (Panther 520 FW) Isoproturon + Bromoxynil + MCPA (Doublet 48 FW), Chlortoluron + MCPA (Agmol combi 60 WP) and Isoproturon (Milron 75 WP) applied @ 2.5 1, 2.0 1, 2.5 1, 2.5 kg and 1.25 kg ha -1, respectively, controlled, 87.2 to 90.8 per cent weeds in wheat and caused 10.29 to 15.98 per cent increase in grain yield over weedy check. These herbicides, when applied with 3 per cent urea solution, gave 92.6 to 95 per cent weed control and 19.24 to 25.47 per cent increase in grain yield over weedy check.
  A.B Tabinda , Moazzam Ali Khan , Omme Hany , M. Ayub , M. Hussain , A. Yasar and M. Altaf Khan
  Different species of carp fishes have different rates of oxygen consumption which varies with the change in temperature. Oxygen consumption studies were carried out on fingerlings (seed) of Labeo rohita, Cirrhina mrigala, Catla catla, Hypophthalmicthys molitrix and Ctenopharyngiodon idella at four different temperatures i.e., 15, 20, 25, 30°C in laboratory conditions. Labeo rohita seems to be the most tolerant species having highest oxygen consumption rates and better survival at low available oxygen concentration in water. Catla catla (at 15 and 30°C) and Hypophthalmicthys molitrix (at 20°C and 25°C) are least tolerant species with highest oxygen consumption rates. Rate of oxygen consumption is greater in Labeo rohita at 15, 20 and 25°C but highest in Cirrhina mrigala at 30°C. Labeo rohita seems to be the most tolerant species having highest oxygen consumption rates and better survival at low available oxygen concentration in water. Ctenopharyngiodon idella and Cirrhina mrigala are moderately tolerant species among the fish species under study.
  K. Iqbal , A. Tanveer , A. Ali , M. Ayub and M. Tahir
  Study to determine the effect of different levels of N and P on the fodder yield and quality of rice bean comprised NP combinations of 0-0 (control), 25-25, 25-50, 25-75, 50-25, 50-50 and 50-75 kg ha–1. Plant height, number of branches, leaves and leaf area increased significantly by the application of N and P over control. Maximum green fodder yields of 50.35, 51.61 and 53.03 t ha–1 were obtained in plots fertilized at 50-25, 50-50 and 50-75 kg ha–1, NP respectively. Crude protein, crude fibre and ash contents of the rice bean were increased by increasing rates of N and P.
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