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Articles by Muhammad Ashfaq
Total Records ( 6 ) for Muhammad Ashfaq
  Muhammad Ashfaq , Khawar Jawad Ahmad and Amjad Ali
  The selected plants in order of preference on the basis of consumption were Sorghum > Maize > Bermuda grass > Tomato > Cotton (NIAB-98) > Alfalfa > Rice >Castor oil > Okra > Cattail > Cotton (CIM-446) > Horse purslane > Rape seed > Winter cherry> Calotrope. The order of the preference on the basis of Coefficient of Utilization (CU) was Sorghum > Bermuda grass > Maize > Cotton (NIAB-98) > Tomato > Winter cherry > Castor oil > Alfalfa > Okra > Rice > Cotton (CIM-446) > Horse purslane > Calotrope > Rape seed > Cattail. None of the plants was found completely resistant to H. armigera. The correlation between food consumption and CU was significantly positive. Moisture content showed positive while thickness of leaf lamina played negative role both for consumption and CU. Moisture percentage alone contributed 50.8% and 40.5% role towards resistance in term of consumption and CU, respectively. The cumulative effect of all the morpho-physical plant factors was 80.1% for consumption and 57.8% for CU.
  Muhammad Ashfaq , M.I. Khan and Musa Kaleem Baloch
  The synthesis and spectroscopic investigations like 1H-, 13C-NMR of novel organotin (IV) esters are described. The FT IR study is successfully applied to verify the bonding mode of endo and exo status of tin (IV) of the dimeric nature of organotin (IV) compound 2. In vitro ED50, bactericidal, fungicidal, bioactivities are investigated, which indicate them significantly potential biocides. Based on spectroscopic analysis and literature evidences, the mono-and dimmer organotin (IV) esters are assigned tetrahedral and distorted octahedral cage type geometry.
  Muhammad Ashfaq , Abrar Ahmad and Amjad Ali
  The leaves of sugarcane, rice and maize were utilized the maximum by M. separate with coefficient values of 71.06, 70.57 and 69.29 percent, respectively, while it was minimum in leaves of water grass (27.79%). Hair density did not show significant correlation with consumption values but it was significantly negative with coefficient of utilization. Thickness and moisture contents played a significant role with negative and positive responses with consumption and coefficient utilization, respectively. The actual contribution of Morpho-physical factors on cumulative basis was 52.1 and 68.9 percent for consumption and utilization, respectively.
  Muhammad Ashfaq , M.A. Rehman and Amjad Ali
  Optimum elements dosages i.e., 0.2%, 0.3%, 0.1%, 0.1%, 0.15% and 0.5% of various minerals i.e., N, P, K, Ca, Mg and Cu respectively in various combinations were studied on larval development and silk production of Bombyx mori L. The rearing of silkworm larvae was restricted to chopped tender and green mulberry leaves treated with different concentrations. The results revealed that mineral nutrients have not affected the yield component significantly but have also presented better food consumption, body weight, co-efficient of utilization and larval development as well. However, of all the test treatments T11 where the offered mulberry leaves were treated with 0.2% N + 0.3% K + 0.1% Ca + 0.1% P + 0.15% Mg + 0.5% Cu concentration gave the best results.
  Abida Nasreen , Ghulam Mustafa , Muhammad Iqbal and Muhammad Ashfaq
  Experiments were conducted under laboratory conditions to find out the most efficient method for harvesting the eggs of Chrysoperla carnea from the different substrates provided on the top of the adult rearing cage for egg laying purpose. Highest egg viability (82.89%) was found in the eggs removed by a razor from the granulated Maraco paper sheet used by AM-Tech rearing methodology whereas egg viability was lowest (64.89%) in the case of egg removed from black organdy with potassium hypochlorite solution. Modest egg viability (75.56%) was observed in the eggs laid on black organdy and removed by a razor.
  Muhammad Hussnain Babar , Muhammad Ashfaq , Muhammad Afzal , Muhammad Hamid Bashir and Muhammad Asif Ali
  Sciarid fly, Lycoriella auripila is the most destructive insect pest of mushroom causing serious threat to mushroom production and cultivation in Pakistan. Chemical control is the most effective easier and quicker method to control this inset pest which is commonly used by our farming community. So there was a dire need to evaluate some commercial insecticides against this pest. The present study was therefore, conducted to evaluate six commercial insecticides (deltamethrin, spinosad, spintoram, trichlorphon, malathion and permethrin) against sciarid fly for three consecutive years (2008 to 2010). During present study the insecticides evaluation was done on the bases of three parameters viz. percent reduction in adult emergence, mushroom damage rate by sciarid fly larvae and mushroom yield per unit area. All insecticides caused significant reductions in adult emergence and mushroom damage rates as compared to control. On overall bases for three years, the data revealed that maximum reduction of adult emergence (84.61, 86.32 and 83.42%) and minimum damage rate by sciarid flies (10.60, 9.53 and 13.73%) as well as maximum yield per plot (8.30, 8.02 and 8.12 kg/m2) was observed in spinosad treated plots, followed by trichlorphon and deltamethrin which were statistically at par. The results of present study showed that deltamethrin, spinosad and trichlorphon may be very effective insecticides to control mushroom sciarid fly in Pakistan.
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