S. A. Khan

University of Swabi

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Huma Abbas

University of Agriculture Faisalabad

Nazir Javed

University of Agriculture Faisalabad

Maaz Khan

The University of Agriculture, Peshawar

Sardar Hussain

Quaid-i-Azam University

Abdul Jabbar

University of Melbourne

Obaid Ur Rehman

Lanzhou University of Finance and Economics

Muhammad Arshad

University of Sargodha

Shi Hong-bo

Nanjing University of Finance and Economics

V. N. Murty

Pennsylvania State University

Rameesha Amjad Ali

University of Benghazi

Cooperative Institutions

University of Agriculture Faisalabad

The University of Agriculture, Peshawar

University of Faisalabad

Abdul Wali Khan University Mardan

Pakistan Agricultural Research Council

Quaid-i-Azam University

University of Sargodha

Pir Mehr Ali Shah Arid Agriculture University

Islamia University of Bahawalpur

Riphah International University

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Root Rot Disease Complex of Cotton: A Menace to Crop in Southern Punjab and its Mitigation through Antagonistic Fungi

Pakistan Journal of Zoology (2017)

Muhammad Arslan Khan S. A. Khan Imran-ul Haq Rashad Waseem Khan

10.17582/journal.pjz/2017.49.5.1817.1828

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Citations (5)

Tolerance of Avena fatua and Phalaris minor to some graminacides.

JOURNAL OF WEED SCIENCE RESEARCH (2005)

Gul Hassan Zahid Hanif Mehboob-ul-Lateef Mujahid Khan S. A. Khan

Phalaris minor

Avena fatua

Avena

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Relative efficacy of various fungicides, chemicals and biochemical against late blight of potato

Pakistan Journal of Phytopathology (2008)

Inam-ul-Haq Aamir Rasheed S. A. Khan

Four fungicides Antracol, Sancozeb, Dithane M-45, Ridomil Gold, one chemical Sulfur and one biochemical Neem leaf extract were tested on test variety SH-5 during two months seasons 2005-2006 and 2006-2007 for their effect on late blight disease incidence and tuber yield. The field experiment was laid out adopting layout system of RCBD, there replications and 2.8 X 6m plot size. The inoculum of late blight disease collected was applied to the crop thrice for the artificial development of the disease. All the fungicides and chemicals were sprayed to crop at the rate of 2.50 gm/ltr at suitable intervals. Early blight disease was noticed in traces because of unfavourable weather condition in both the years. The averaged data of two years indicated that the fungicide Ridomil Gold effectively controlled the late blight disease showing the least magnitude of the disease incidence as 10.66%. It was followed by the fungicide Dithane M-45 with 10.66% disease attack whereas, the control was found with the maximum disease incidence as 58%. In both the years, significant differences in the late blight incidence were noticed in due to the fungicides as per statistical analysis. However, two fungicides Sancozeb and Antracol, with 16% and 19.16% disease attach promised better control of the disease as compared with Sulfur and Neem leaf extract having 29.16% and 38.66% late blight incidence. All the three fungicides, Ridomil Gold, Dithane M-45 & Antracol spraying resulted in the lowest number of small tubers and greater number of medium and large tubers as compared with the control water spraying. As regards tuber yield, Ridomil Gold fungicide promised maximum tuber yield as 26.27 t/ha followed by Dithane M-45 with 22.90 t/ha potato yield as against control with 13.18 t/ha tuber yield. Both the fungicides Dithane M-45 & Ridomil Gold have almost one and half to two fold tuber yields as compared with control. It was apparent that Ridomil Gold fungicides proved as the most efficacious in terms of 47.33% less blight and 127.94% more tuber yield. It was followed by Dithane M-45 with 43.50% decrease in disease incidence and 98.73% increase in tuber yield.

Phytophthora infestans

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Effect of Different Herbicides, Plant Extracts and Mulches on Yield and Yield Components of Maize

Planta Daninha (2020)

Ikramullah Khan Obaid Ur Rehman S. A. Khan Hameed Alsamadany Yahya Alzahrani

ABSTRACT: To examine the effect of pre emergence herbicides, plant extracts and mulches on yield and yield components of maize, a field experiment was carried out at New Developmental Farm, The University of Agriculture Peshawar-Pakistan during summer crop season 2016. Maize variety “Azam” was sown in Randomized Complete Block (RCB) design having four replications and ten treatments i.e. hand weeding, Dual Gold 960 EC (S-metolachlor 1 L ha-1), Stomp 330 EC (pendimethaline 2.5 L ha-1), atrazine 1.25 L ha-1, Eucalyptus camaldulensis L. extract (125 g L-1), Ammi visnaga L. extract (125 g L-1), black plastic mulch, wheat straw mulch, saw dust mulch and weedy check. The data revealed that hand weeding and herbicides significantly affected the weed density (m-2), weeds biomass (kg ha-1), plant height (cm), kernels weight (g), number of kernels ear-1, biological yield (kg ha-1) and grain yield (kg ha-1). All the significant parameters of crop were comparable among the hand weeding, atrazine, S-metolachlor and pendimethaline treated plots. However, atrazine and S-metolachlor proved to be the most economical herbicides giving maximum yield (4636.4 and 4562.8 kg ha-1), respectively. Among plant extracts, E. camaldulensis showed satisfactory results in suppressing weeds and enhancing yield of maize i.e. (3441.6 kg ha-1). Hence, the use of herbicides (atrazine and S-metolachlor) at the recommended rates and hand weeding is recommended for effective weed control and ultimately high yield of maize crop.

Metolachlor

Ageratum conyzoides

10.1590/s0100-83582020380100028

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Dry Matter Partitioning and Harvest Index of Maize Crop as Influenced by Integration of Sheep Manure and Urea Fertilizer

Advances in Crop Science and Technology (2017)

S. A. Khan Ahmad Khan Fazal Jalal Maaz Khan Haris Khan

The experiment was designed to evaluate the effect of sheep manure (SM), its application timing (AT) and N fertilizer (urea) on dry matter partitioning and harvest index. The study was conducted on RCBD split plots arrangement at Agronomic research farm during 2015. Sheep manure (SM1=3 t ha-1, SM2=4 t ha-1, SM3=5 t ha- 1) and application timing (AT1=15 days before sowing, AT2=At sowing time) were allotted to main plots however, fertilizer N (N1=0 kg ha-1, N2= 90 kg ha-1, N3=120 kg ha-1) were applied to sub-plots. Application of 5 t ha-1 of sheep manure at 15 days before sowing significantly enhanced pre-tasseling (stem and leaves) and physiological maturity (stem, leaves, cobs and grains) dry matter partitioning and harvest index. Pre-tassel and physiological maturity dry matter accumulation were higher with application of 120 kg N ha-1 however, Application of 5 t sheep manure ha-1 at 15 days before sowing and 120 kg N ha-1 was recommended for higher dry matter accumulation of maize crop.

Tassel

10.4172/2329-8863.1000276

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Citations (2)

A New Exponential Factor-Type Estimator for Population Distribution Function Using Dual Auxiliary Variables under Stratified Random Sampling

Mathematical Problems in Engineering (2022)

Anum Iftikhar Shi Hong-bo Sardar Hussain S. A. Khan Badr Alnssyan

In this paper, we propose a generalized class of exponential-type estimators for estimating the finite population distribution function using dual auxiliary variables under stratified sampling. The biases and mean squared errors (MSEs) of the proposed class of estimators are derived up to the first order of approximation. The empirical and theoretical study of comparisons is discussed. Four populations are taken for the support of the theoretical findings. It is observed that the proposed class of estimators performs better as compared to all other considered estimators in stratified sampling.

Stratified Sampling

Exponential type

Extremum estimator

10.1155/2022/7673945

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Comparative efficacy of herbicides on yield and yield components of wheat (Triticum aestivum L.).

Journal of agricultural and biological science (2013)

Muhammad Farooq Khalil Gul Hassan Gulzar Ahmad Sajjad Anwar S. A. Khan

To find out the comparative efficacy of herbicides on yield and yield components of wheat (Triticum aestivum L.) an experiment was conducted at Cereal Crops Research Institute (CCRI) Pirsabak, Nowhshera during the winter season 2006-07. The experiment was comprised of 6 herbicides plus hand weeding and weedy check plots. The herbicidal treatments were the post-emergence application of Affinity 50 WDG (carnfentrazone ethyl + isoproturon) @ 0.016, Buctril super (bromoxynil octanovate + heptanovate ester) @ 1.23, Puma super 75 EW (fenoxaprop-p-ethyl) @ 0.94, Topik 15 WP (clodinafop propargyl) @ 0.04, Topik 15 WP + Buctril super 60 EC (fenoxaprop-p-ethyl+ bromoxynil octanovate + heptanovate ester) @ 0.04 +1.23, Puma super 75 EW + Buctril super 60 EC (fenoxaprop-p-ethyl + bromoxynil octanovate + heptanovate ester) @ 0.94 + 1.23 kg a.i ha -1 , while hand weeding was performed three times in the respective treatments. The data were recorded on weed density m -2 30 days after treatment, number of tillers plant -1 , number of grains spike -1 , 1000 grain weight (g), biological yield (t ha -1 ) and grain yield (t ha -1 ). For effective weeds controlling Affinity 50 WDG proved to be the best treatment with minimum weed density after treatment 33 weeds m -2 was observed in plots treated with Affinity 50 WDG while; maximum weed densities were recorded in weedy check plot with 117 weeds m -2 . Similarly the maximum grain yield of 4.072 t ha -1 was recorded in Affinity plot followed by hand weeding plot and the plot sprayed with the mixture of Buctril super + Puma super with grain yield of 3.773 t ha -1 and 3.483 t ha -1 , respectively. A minimum grain yield of 1.603 t ha -1 was recorded in weedy check plots. Affinity was also proved to be effective in other parameters like spikes m -2 (484), number of grains spike -1 (52) and 1000 grain weight (36 g). In the light of this study the herbicide Affinity 50WDG followed by the mixture of Buctril super + Puma super provided better results for the control of weeds in the wheat crop.

Bromoxynil

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Combined effect of nitrogen fertilizers and herbicides upon maize production in Peshawar.

The Journal of Animal and Plant Sciences (2012)

Naqib Ullah Khan Nazir Khan S. A. Khan M. A. Khan K. B. Marwat

Maize is an excellent source of energy in human diet and animal rations. To find out the cumulative effect of nitrogen (N) and herbicidal weed control upon the various growth parameters of maize, an experiment was con ducted in summer season of 2006 at the Malakandher Research Farm, Agricultural, University Peshawar. The experiment was performed using randomized complete block design having split plot arrangements. All the treatments were replicated four times. The treatments consisting 3 N fertilizer (Urea) rates (i.e. 80, 120 and 160 kg ha -1 ) and 3 herbicides (Atrazine @ 1.00 kg a.i ha -1 , Stomp@ 0.75 kg a.i ha -1 and 2,4-D @ 0.80 kg a.i ha -1 ) and a weedy check was kept along each treatment for comparison. The main-plots having the N rates while the sub -plots having the herbicides. The N fertilizer was applied in two split doses (i.e. the first dose at the first irrigation after seed germination and the second dose a week before the silking). The pre -emergent herbicides(Stomp and Atrazine) were applied during sowing and the post emergent herbicide (2,4-D) was applied after 25 days of sowing. Fresh weed biomass waslower (34.0g m -2 )in the atrazine treated plots than in the weedy check plots (54.2g m -2 ).The maximum daysto 50% tasseling (61.6) taken by the plants fertilized with 160 kg ha -1 N and plants which received 80 and 120 kg ha -1 N had spent statistically similar days to 50% tasseling .The effect of herbicides and their interaction with N rates was non -significant . The maximum 500 kernel weight (92.8 and 90.2 g) was achieved in the plots which received 160 and 120 kg ha -1 N, respectively. The heaviest 500 kernel weight (91.5 g) was noted in Atrazine treated plots and lightest 500 kernel weight (85.8 g) was found inweedy check plots. The largest biological yield (3.1 t ha -1 ) wasrecordedfor 160 kg ha -1 . The maximum biological yield (3.2 t ha -1 ) was found for Atrazine while the lowest (2.4 t ha -1 ) for weedy check. The overall effect of 160 kg ha -1 N application rate and Atrazine wasfoundto be highly desirable for weed control and for promoting yield and yield components of maize.

Growing season

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Compatibility of entomopathogenic nematodes (Nematoda: Rhabditida) and the biocide, spinosad for mitigation of the armyworm, Spodoptera litura (F.) (Lepidoptera: Noctuidae)

Egyptian Journal of Biological Pest Control (2018)

Rashad Rasool Khan Rameesha Amjad Ali Abid Ali Muhammad Arshad Shahid Majeed

Two entomopathogenic nematodes (EPNs) Heterorhabditis indica and Steinernema carpocapsae were tested against the armyworm, Spodoptera litura (F.) (Lepidoptera: Noctuidae). Also, their compatibility with spinosad (Tracer® 240SC) was assessed under laboratory conditions. In study I, compatibility test was performed to evaluate the viability of nematodes at different concentrations of spinosad. None of the concentrations was observed as toxic against both EPNs. The highest concentration (800 ppm) of the spinosad showed 14% mortality in H. indica juveniles and 13% in S. carpocapsae 48 h post-treatment. In study II, the spinosad and the EPN mixtures showed that both EPNs enhanced the efficacy of spinosad against S. litura larvae. The highest mortality rates (80.0 and 76.6%) in the second instar larvae indicated a synergistic effect (χ2 = 39.69 and 7.02) 48 h post-treatment, with infective juveniles (IJs) of S. carpocapsae and H. indica, respectively, with the highest concentration of spinosad. In the case of the third instar larvae, a synergistic effect (χ2 = 16.73) was observed in H. indica and the highest concentration of spinosad, while other treatments showed additive efficacy of the EPNs. After 96 h, all treatments exhibited synergistic effect, except when H. indica was applied at the lowest concentration of spinosad. However, these combination treatments need to be tested further with EPNs under field conditions to confirm their efficacy.

Rhabditida

Spodoptera litura

Biopesticide

Neem Oil

10.1186/s41938-018-0063-y

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Management of Meloidogyne incognita race 1 through the use of entomopathogenic nematodes in tomato.

Pakistan Journal of Zoology (2016)

S. A. Khan Nazir Javed Muhammad Kamran Huma Abbas Asma Safdar

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Citations (12)