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Articles by M. Ayub
Total Records ( 16 ) for M. Ayub
  M.S. Sharar , M. Ayub , M.A. Nadeem and N. Ahmad
  In a field experiment, growth and grain yield of maize cultivar golden as influenced by different NP combinations were studied. The different NP combinations significantly affected the plant height, cob bearing plant m-2, number of grains cob-1, 1000-grains weight, grain yield and harvest index. The number of cobs plant¯1 was not influenced significantly by NP application. The NP application @ 180-130 kg ha-1 produced significantly higher grain yield (4.62 t ha-1) than all other NP combinations. The increase in yield was mainly due to higher 1000-grains weight, number of grains per cob and number of cobs bearing plant per plot. The results indicated that NP fertilizers should be applied @ 180-130 Kg ha-1 to obtain higher grain yield of maize cultivar golden under Faisalabad (Pakistan) conditions.
  M. Ayub , M. A. Nadeem , M. S. Sharar and N. Mahmood
  A field experiment was conducted to evaluate the effect of different combination of nitrogen and phosphorus on the fodder yield and quality of maize (Zea mays L.). The maize cultivar Pak. Afgoyee sown on 1st August, 2000 was given NP fertilizers at the rate of 0-0, 120-40, 120-60, 120-80, 160-40, 160-60, 160-80, 200-40, 200-60, and 200-80 kg ha -1. Growth characteristics like plant height, number of leaves plant -1, stem diameter, leaf area plant -1, green fodder yield, dry matter yield and dry matter percentage were influenced significantly by the application of nitrogen and phosphorus. Maximum green fodder yield was obtained when nitrogen and phosphorus were applied at the rate of 200-80 kg ha -1 but it was statistically similar to NP application of 200-60 kg ha -1. The increase in yield was mainly due to increased plant height, number of leaves plant -1 and stem diameter. Quality parameters such as crude protein, crude fibre and ash contents were also influenced significantly by the application of NP fertilizers. All NP combination produced higher crude protein, crude fibre and ash contents over control. Keeping in view both yield and quality NP levels of 200+60 kg ha -11 seems to be the best combination under Faisalabad conditions for maize cultivar Pak. Afgoyee.
  M. Ayub , A. Tanveer , M. A. Nadeem and M. Tayyub
  A field was conducted at Faisalabad, Pakistan during 2001, to study the effect of 80, 100 and 120 kg seed rate ha-1 on sorghum (Sorghum bicolor L.) cultivar ‘Hegari’ grown on soil prepared by different tillage methods i.e. deep tillage (one ploughing with disc plough+two ploughing with cultivator+one planking), conventional tillage (two ploughings with cultivator+two planking) and zero tillage. The increase in seed rate significantly increased the green fodder (18-35%) and dry matter yields (21-40%) and yield components like plant density, plant height and number of leaves plant-1 but decreased the stem diameter (0.9-8%). The quality parameters like ash, crude fibre and crude protein contents were decreased and dry matter percent increased with increased seed rate. The deep tillage owing to more number of leaves plant-1 (11.21), plant density (47.30 m-2), plant height (193.13 cm) resulted in significantly greater dry matter (5.66 t ha-1) and green fodder yields (31.59 t ha-1) than zero tillage. The seed rate of 120 kg ha-1, sown on soil prepared by deep tillage proved to be the best combination for getting higher green fodder yield (35.15 t ha-1) of sorghum (Sorghum bicolor L.) cultivar ‘Hegari’ under Faisalabad conditions.
  M. Ayub , M.S. Sharar , A. Tanveer and M. Khaliq
  Response of wheat (Triticum aestivum L.) cultivar Inqulab-91 to nitrogen application of 120 kg ha -1 at different growth stages (full at sowing, full at tillering, half at sowing and half at tillering, half at sowing and half at flowering, half at tillering and half at flowering and 1/3 at sowing, 1/3 at tillering and 1/3 at flowering) was studied under field conditions during 1993-94. Grain yield and various yield components like plant height, total number of tillers m -2, fertile tillers m -2, number of grains per spike, 1000-grain weight and harvest index were affected significantly by nitrogen application at different growth stages. Maximum grain yield of 84.31 q ha -1 was obtained where nitrogen was applied in three equal splits (1/3 at sowing, 1/3 at tillering and 1/3 at flowering) and it was followed by full at tillering and full at sowing which yielded 80.47 q ha -1 and 80.07 q ha -1, respectively. The nitrogen in three equal splits (1/3 at sowing, 1/3 at tillering and 1/3 at flowering) should be applied for getting higher grain yield of wheat in Faisalabad conditions.
  M. Ayub , R. Ahmad , A. Tanveer , J. Iqbal and M.S. Sharar
  Seed yield in green gram was increased progressively with phosphorus application up to 75 kg P2O5 ha–1. The application of P2O5 more than 75 kg ha–1 depressed the yield and yield components. Maximum increase in seed yield, recorded at 75 kg P2O5 ha–1 was about 92% of control. Higher seed yield with phosphorus application was related to the higher number of pod bearing branches, number of pods per plant, number of seeds per pod and 1000-grain weight. Protein contents were also influenced significantly by phosphorus application, being maximum (27.01%) at phosphorus level of 75 kg ha–1. Phosphorus application of 75 kg ha–1 seems to be the optimum level for harvesting higher yield in green gram.
  M. Ayub , R. Ahmad , A. Tanveer , Hafiz Z. Ahmad and M.S. Sharar
  Response of three sugarcane cultivars namely BL-4, SPSG-26 and SPSG-394 to NPK levels of 0-0-0, 200-0-0, 200-150-150 and 200-200-200 kg was studied under field conditions. Variety SPSG-394 gave the highest cane yield of 107.67 tons ha–1 compared to 88.85 and 58.53 tons ha–1 for the varieties BL-4 and SPSG-26, respectively. An increase of 16.27 and 26.13 tons ha–1 over control was recorded with the application of 200 kg N ha–1 alone and 200-150-150 kg NPK ha–1, respectively, Sucrose contents and commercial cane sugar were not affected significantly by fertilizer application. However, variety SPSG-26 gave significantly higher sucrose contents (18.82%) and commercial cane sugar (12.89%) than SPSG-394 and BL-4. The fertilizer application at 200-150-150 kg NPK ha–1 was found to be optimum level for achieving maximum cane yield.
  M. Ayub , A. Tanveer , K. Mahmud , A. Ali and M. Azam
  Response of two sorghum cultivars namely Hegari and JS-263 to different NP levels of 0-0, 50-0, 100-0, 50-50, 100-50 and 100-100 kg ha–1 was studied under field conditions. The cultivar Hegari gave significantly higher green fodder and dry matter yield due to greater plant height, stem diameter and leaf area plant–1. The crude fiber per cent and ash per cent were also significantly higher for cultivar Hegari. A progressive increase in yield was observed with fertilizer application up to 100 kg N + 50 kg P205 ha–1 whereas, the quality parameters such as protein content, crude fiber and ash percent were significantly higher with NP application of 100 + 100 kg ha–1. The cultivar Hegari and fertilizer level of 100 kg N + 50 kg P205 ha–1 seems to be the best combination for harvesting higher fodder yield of sorghum under Faisalabad conditions.
  M. S. Sharar , M. Ayub , M. Adil Choudhry , M.A. Rana and M.M.Z. Amin
  Response of two mungbean cultivars namely NM-54 and NM-92 to phosphorus levels of 0, 50, 100 and 150 kg ha–1 was studied in field conditions during the autumn 1997. The growth and yield parameters like plant height, pods plant, seeds pant–1, 1000-seed weight and seed yield were influenced significantly by both phosphorus application and cultivars. However, number of pod bearing branches plant–1 were not influenced significantly by both cultivars and fertilizer levels. the maximum seed yield of 1095 kg ha–1 was obtained by the application of 100 kg P205 ha–1, The cultivar NM-54, yielding 1060.09 kg ha–1 seed proved to be superior than NM-92 (956.77 kg ha–1). The application of 100 kg P205 ha–1 was found to be the optimum level for obtaining higher yield of mungbean in Faisalabad conditions.
  M.S. Sharar , M. Ayub , M. Adil Choudhry , M.M.Z. Amin and M.Moazzam Khalid
  Response of two varieties of sugarcane namely SPSG-26 and SPSG-394 to seeding densities of 75,000, 100,000, 125,000 and 150,000 sets ha–1 was studied under field conditions. SPSG-394 produced higher cane yield (64.80 t ha–1) than SPSG-26 (52.64 t ha–1) due to higher cane density, cane length and weight cane–1. However, SPSG-26 gave higher sucrose content and commercial cane sugar (C.C.S.) percentage. Seeding densities also affected significantly cane density, cane length, weight cane–1, cane yield, sucrose content and C.C.S. percentage. A significant decrease in cane yield was observed when crop was sown with seeding densities higher than 75,000 sets ha–1. Therefore, seeding density of 75,000 sets ha–1 seems to be optimum for obtaining higher yield of sugarcane. However, maximum sucrose content (17.45%) and C.C.S. (11.87%) were obtained when crop was sown at a seeding density of 100,000 sets ha–1.
  M. Ayub , M. Adil Choudhry , Asif Tanveer , M.M.Z. Amin and Imtiaz Ahmad
  The effect of different NP sources viz., urea + single super phosphate (SSP), Ammonium nitrate (AN) + SSP, ammonium sulphate (AS) + SSP, Urea + Triple super phosphate (TSP), AN + TSP and AS + TSP on the growth and grain yield of maize was studied in the Agronomic Research Area, University of Agriculture, Faisalabad during the year 1997. A quadruplicated experiment was arranged in a randomized complete block design measuring a net plot size of 3m × 8m. The combination of ammonium sulphate and single super phosphate produced significantly higher plant height, leaf area plant–1 and grain yield (5.41 t ha–1) than all other combinations. The increased yield was mainly associated with higher 1000-grain weight. Number of cobs plant–1 and number of grain rows cob–1 were statistically similar in all combinations of NP sources. The combination of AS + SSP seems to be the most suitable one for obtaining higher grain yield of maize in Faisalabad conditions.
  M. Ayub , R. Mahmood , A. Tanveer and M.S. Sharar
  Two varieties of maize viz., Neelum and Akbar were compared at seed rates of 75, 100, 125 and 150 kg ha–1 in Faisalabad conditions. Varieties showed non-significant differences for all parameters studied except dry matter yield. Cultivar Akbar gave significantly more DM yield (7.18 t ha–1) than Neelum (6.09 t ha–1). Seeding densities showed significant effects growth and yield parameters. Plant height, green fodder yield, dry matter yield and crude fibre percentage was increasing with increasing seed density, whereas, the increase in crude fibre percentage could not reach to a significant level. While stem diameter, leaf area plant–1, crude protein percentage, total ash percentage and ether extractable fat percentage decreased significantly with increased seed rate. The cultivar Akbar and seed rate of 150 kg ha–1 seems to be the best for producing higher fodder yield of maize in Faisalabad conditions.
  M. Ayub , A. Tanveer , Z. Iqbal , M.S. Sharar and M. Azam
  Response of two sunflower cultivars namely Aritar-93 and suncom-110 to N levels of 0, 50, 100 and 150 kg ha–1 was studied under field conditions. Sunflower cultivar suncom-110 produced significantly higher plant height, leaf area per plant, 1000-achene weight and achene yield. Plant height, leaf per plant, stem diameter, no. of achenes per disc and achene protein contents were maximum at N level of 150 kg ha–1. Whereas, oil contents were significantly higher in control. Nitrogen application at 100 and 150 kg ha–1 gave statistically similar achene yields of 15.95 and 16.18 q ha–1 respectively. Application of nitrogen more than 100 kg ha–1 seems to be uneconomical.
  M. Ayub , R. Ahmad , A. Tanveer and I. Ahmad
  Response of maize (Zea mays L.) cultivars viz., Sadaf, Sultan, Sarhad White and Golden to two sowing methods, i.e., broadcast and line sowing was studied under field conditions. Significant differences were observed amongst the cultivars for plant height, leaf area per plant, stem diameter, fresh fodder yield and ether extractable fat percentage. Cultivar ‘Sultan’ proved superior to all other cultivars with respect to higher fodder yield of better quality. Plant population was significantly higher under line sowing where as fodder yield and all other yield parameters studied were not significantly affected by sowing methods.
  A. Tanveer , M. Ayub , A. Ali , R. Ahmad and M. Ayub
  A field experiment comprising two row spacing viz. 60 and 75 cm and five durations of weed-crop competition i.e. competition for 20, 30, 40, 50 days after emergence and till harvest was conducted to observe growth and yield response of maize. There was gradual increase in dry weight of weeds with increased weed-crop competition duration. Decrease in number of grains per cob and 1000-grain was recorded with increased competition duration of weeds. Maize grain yield was increased from 1911.61 kg ha–1 in plots where weeds competed with crop till harvest to 3708.33 kg ha–1 in plots where weeds were allowed to compete for 20 days after emergence.
  M. Ayub , I. A.P. Dewi and A. Tanveer
  A pot experiment was conducted to study forage yield and quality of barley when harvested at different times (88, 106, 129, 143, 154 and 178 days after sowing) and grown under three nitrogen (0, 50, 100 kg ha–1). Fresh, dry matter and crude protein yields and quality parameters i.e. crude protein percent and modified acid detergent fibre percent were influenced significantly by nitrogen rates and harvest times. Whereas, dry matter percent was only influenced significantly by harvest times. The interaction between harvest times and nitrogen level were also significant for all parameters except for crude protein yield and plant height. Crude protein (CP) percent in whole barley plant decreased with time and remained constant near maturity. Modified acid detergent fibre percent increased with harvest date and reached a maximum at the fourth harvest and then decreased significantly by the fifth harvest. Maximum dry matter (727.7 g) and fresh yields (2184.4 g) were observed at fifth and fourth harvest respectively. The barley fertilized at 100 kg ha–1 and harvested 154 days after sowing seems to be optimum combination for getting higher dry matter yield.
  M. Ayub , A. Tanveer , M. Adil Choudhry , M.M.Z. Amin and G. Murtaza
  Response of two mungbean cultivars namely NM-54 and NM-92 to nitrogen levels of 0, 20, 40 and 60 kg ha–1 was studied under field conditions. The cultivar NM-92 gave significantly higher seed yield than cultivar NM-54 due to higher number of pod bearing branches plant-–1, number of pods plant–1 and number of seeds pod–1. Yield and yield components were also influenced significantly by nitrogen levels. The application of nitrogen at the rate of 60 kg ha–1 significantly depressed the seed yield and yield components except number of pods plant which were statistically similar with nitrogen application of 40 kg ha–1. Maximum increase in seed yield, recorded at 40 kg N ha–1, was about 31 percent higher of control. The increase in seed yield with nitrogen application was related to higher number of pods plant–1, number of seeds pod–1 and 1000-grain weight. Protein contents were also influenced significantly by nitrogen application, being maximum (26.18%) at nitrogen level of 40 kg ha–1. Nitrogen application at the rate of 40 kg ha seems to be the optimum level for harvesting higher yield of mungbean.
 
 
 
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