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Articles by Muhammad Ayyaz Khan
Total Records ( 11 ) for Muhammad Ayyaz Khan
  Iqtidar Hussain , Muhammad Ayyaz Khan and Khalil Ahmad
  An experiment was conducted to determine the effect of different row spacing on grain yield and yield components of wheat variety Inqilab 91 at the agronomic research area, Faculty of Agriculture, Gomal University, D.I. Khan. The results revealed that different row spacing significantly affected plant population m-2, number of spikes m-2, 1000 grain weight, biological yield and grain yield. Number of grains spike-1, spikelets spike-1, spike length and harvest index remained non significant. Maximum tillers m-2 (418.5) and spikes m-2 (408) were observed at cross drill sowing techniques of 30 x 30 cm2. While maximum 1000 grain weight (48.70 g) were recorded at wider row spacing of 60 cm. Maximum biological yield (14.13 t ha-1) and grain yield (5.65 t ha-1) were also observed in cross drill sowing (30 x 30 cm2).
  Muddassir Zishan Akhtar , Muhammad Ayyaz Khan , Khalil Ahmad and Maraj Alam
  Ten wheat (Triticum aestivum L.) varieties viz., Inqalab-91, Sulaiman-96, Bakhtawar-92, Punjab-96, Pirsabak-91, Daman-98, Sarsabz, Sughat, MH-97 and Dera-98 were compared for different agronomic traits Daman-98 produced maximum 1000-grain weight and minimum number of fertile tillers m -2. Inqalab-91 showed maximum germination counts m -2, grains per spike, grain yield and harvest index, while maximum number of fertile tillers m -2 were observed in Sughat. Inqalab-91 proved to be the best yielding variety for D.I. Khan among all tested varieties and Bakhtawar-92, Pirsabak-91, Sughat, MH-97 and Dera-98 can be grown successfully to obtain better grain yields than the remaining wheat varieties.
  Muhammad Ayyaz Khan , Ishtiaq Taj , Ijaz Ahmad and Muhammad Safdar Baloch
  Experiments were conducted to evaluate allelopathic influence of eucalyptus on the germination and seedling growth of cotton, sunflower, sorghum, mungbean and mothbean under the laboratory conditions. One kg of fresh leaves of eucalyptus was soaked in ten liter of water for 72 hours. This extract was used in seeds soaking prior to sowing in the pure sand culture. The same extract was applied to the germinated seeds in comparison with simple water application to the control treatments. The results revealed that application of aqueous extract of fresh leaves to seeds of all crops reduced the germination and suppressed the growth of roots and shoots of seedlings of crops belonging to different families.
  Muhammad Ayyaz Khan , Iqtidar Hussain and Muhammad Safdar Baloch
  Yield potential of six high ranking wheat varieties was determined in the light of wisdom described in the Holy Quran, using grain yield determining formula. The grain yield calculated is seven times less than the Holy Quranic predicted wheat yield. One reason of low wheat yield might be the lack of production of predicted fertile tillers (ears) containing 100 grains in the cultivated varieties. Second reason in our opinion is lack of efficient wheat production technologies for getting the Holy Quranic predicted yield of 70 t ha–1.
  Muhammad Ayyaz Khan and T.H. Flower
  This study was conducted to investigate the possible changes in the composition of effluent in relation to its nutrient stability during storage and its ability to supply plant available nutrients. The samples collected from high rate algal ponds (HRAP) were stored with the aim of storage effect on nutrient stability in the algal pond effluent. The trend of change in the chemical composition of algal pond effluent suggested that it can be stored for a week at 2°C with only minor changes in ammonium, nitrite, nitrate, phosphate and potassium during storage. Fresh or stored samples can be applied to the pot experiments but their analysis prior to each application will be essential.
  Muhammad Ayyaz Khan , Maraj Alam , Khalil Ahmed , Khalil Ahmed , Muddassir Zishan Akhtar and Ejaz Ahmad Khan
  The effect of different materials to control Conyza stricta weed in sugarcane (Co. 1148) crop during 1999-2000 was evaluated. The treatments used were 2,4-D, Gesapex combi, Visa combi, Eucalyptus extract, Hand weeding, and Plastic covering along with control. The statistical analysis of the data showed that maximum Conyza stricta population and plant height was observed in control plots, while the minimum was in hand weeded plots. There was complete eradication of weeds in plastic covered plots. 2,4-D minimized the weed counts m-2 over Gesapex combi and Visa combi and other treatments except plastic covering. Among the herbicidal treatments, 2,4-D gave the lowest plant height. The highest fresh weight and dry weight of Conyza stricta was observed in control plots, while the lowest was in hand weeded plots. The various herbicides reduced sufficiently the fresh weight of Conyza stricta. 2,4-D reduced the dry weight of Conyza stricta than other tested expensive herbicides. It can be concluded that 2,4-D eradicate the broad leaved weeds in sugarcane and was found to be the best among chemicals, while plastic covering gave complete eradication.
  Muhammad Ayyaz Khan , Abdul Haleem Khan , Khalil Ahmad and M. Safdar Baloch
  The performance of five granular insecticides i.e Furadon, Sunfuran, Agridan, Asocarbo and Rotap against maize borer (Chilo partellus) in corn hybrid 4208 was evaluated at Agronomic Research Area, Faculty of Agriculture, Gomel University, Dera Ismail Khan during the spring 1998. Among all the granules, Furadon 3G was the best in minimum dead hearts (7.50%), damaged cobs (3.50%) production, grain/cobs (527.8) production, maximum 1000-grain weight (245.5 g) and grain yield of 6.325 t ha–1 respectively. Other granular insecticides were least effective than Furadon, however better than control.
  Muhammad Ayyaz Khan , Zahid Usman , Khalil Ahmad , M. Safdar Baloch and M. Sadiq
  The performance of six sunflower hybrids i.e 6435, 6470, 6451, SF-177, SF-187 and Hysun-33 was observed during the autumn season 1997. The results revealed that Hysun-33 gave maximum plant height (131.1 cm) and number of leaves per plant (31.23). The maximum number of rows per head (60.62) were recorded in SF-177 while significantly more number of seeds per row (24.54), 1000-seeds weight (53.53) and grain yield (4403 kg ha–1) was observed in SF-187. Hence SF-187 proved to be the best suited cultivar among all the cultivars included in this trial.
  Muhammad Aslam , Muhammad Ayyaz Khan , Inayat Ullah Awan , Ejaz Ahmad Khan , Ahmad Ali Khan and Ghulam Jilani
  This field experiment was undertaken on already green manured soil for comparing the efficiency of various organic manures used as alone and in combination, for wheat production. Organic matter sources/treatments used in the study were: Farm Yard Manure (FYM), Poultry Litter (PL), Press Mud (PM) and Sewage Sludge (SS). The amount of each organic amendments used singly was 20 t/ha, while their combinations had 10 t/ha for each of the two amendments making a total of 20 t/ha in a treatment. The experiment was conducted on wheat cv. Bhakkar 2002 as test crop for two consecutive growing seasons (year 2004-05 and 2005-06). Results revealed that Application of all types of organic materials (FYM, PL, PM and SS) and their combinations improved the growth and yield attributes of wheat significantly over control in both the years. The highest biological and grain yield was obtained with the application of PL alone followed by FYM+PL and PL+PM, with a significant difference among them. Economic analysis revealed that the value of Cost-Benefit Ratio (CBR) was highest with FYM+PL followed by PM+SS and PL+PM. The lowest CBR values were recorded under FYM alone and FYM+SS. This was mainly due to smaller yield increase and additional income with these treatments.
  Muhammad Aslam , Muhammad Ayyaz Khan , Inayat Ullah Awan , Ejaz Ahmad Khan , Ahmad Ali Khan and Ghulam Jilani
  A field study was conducted on pre-green manured soil for the comparison of different organic manures applied singly and combined, for the production of wheat cv. Bhakkar 2002. Organic amendments used in the experiment included Farmyard Manure (FYM), Poultry Litter (PL), Press Mud (PM) and Sewage Sludge (SS). Quantity of the organic manures used as alone was 20 t ha-1 and their combinations contained 10 t ha-1 for each of the two amendments making up 20 t ha-1. The study was undertaken for two consecutive wheat growing seasons. The results indicated that combined use of PL, SS and their integration with other organic materials raised N contents in soil, wheat grain and straw to the maximum. The highest P contents in soil, wheat grain and straw were found with SS followed by SS+PL and PL alone and the highest K contents were recorded with PL, PL+PM and PM alone. It was found that N, P and K contents in soil, wheat grain and straw were highly correlated with N, P and K contents in the organic amendments.
  Ghazanfar Ullah Sadozai , Muhammad Farhad , Muhammad Ayyaz Khan , Ejaz Ahmad Khan , Muhammad Niamatullah , Muhammad Safdar Baloch , Abdul Aziz Khakwani and Kashif Wasim
  The experiment was conducted to study the effect of various phosphorous levels on the yield and yield components of sunflower variety “Hysun-33” at the Agronomic Research Area, Faculty of Agriculture, Gomal University, Dera Ismail Khan during the year 2010. The phosphorous levels studied were 0 (N :P2O5: K2O), 0 (P2O5), 10, 20, 30, 40, 50, 60 P2O5 Kg/ha. The results showed significant effect of P2O5 @ 50 kg/ha and 60 kg/ha as compare to lower doses of phosphorous. All varying levels of phosphorous affected the head diameter, number of seeds per head, 1000-seeds weight, achene’s yield and achene’s oil content but significant positive effect was observed where P2O5 @ 60 kg/ha N @ 50 kg/ha and K2O 15 kg/ha was applied. However, number of plants, remained non-significant. It is, therefore, recommended to apply phosphorous @ 60 kg/ha for obtaining higher yield of sunflower.
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