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Articles by Khalil Ahmad
Total Records ( 6 ) for Khalil Ahmad
  Mohammad Subhan , M. Qasim and Khalil Ahmad
  An 8 x 8 diallel analysis study on cotton (Gossypium hirsutum L.) was conducted at Faculty of Agriculture, Gomal University, D. I. Khan, during, 1996-99 to determine the type of gene action in the control and expression of some important quantitative characters like seed index and lint index in F1 and as well as in F2 generations. The analysis of variance exposed that differences among genotypes for the characters mentioned were highly significant. The Hayman-Jinks model proved to be partial adequate for the characters mentioned in F1 while completely adequate in the F2 generations in this manuscript.
  Mohammad Safdar Baloch , Inayat Ullah Awan , Gul Hassan , Muhammad Ayyaz Khan , Khalil Ahmad and Muhammad Zubair Sulemani
  A survey was conducted from 50 randomly selected rice growers from 25 villages of Dera Ismail Khan, NWFP, Pakistan. The survey report revealed that 96 percent rice growers planted well-adapted high yielding coarse rice variety IR-6. All the farmers followed recommendations regarding land preparation using tractor and tractor-mounted implements. Half of the population used their self-produced seed, which was kept under profaned conditions. Majority of the farmers raised rice nursery during the month of April to mainly escape from the attack of rice stem borer. More than half (56%) used optimal age (30-40-days-old) rice nursery. Almost all the population (96%) used transplanting method but none of them used the line method of transplantation. Although, a big fraction (36%) of the sampled population was illiterate, yet all were applying recommended doses of fertilizers. Similarly, most of the growers (70%) were impelled to apply canal water at 4-8 days interval according to the water schedule given by the Revenue department. Majority of the population reported weeds and pest (stem borer) in rice crop. The per hectare rice yield of the farmers interviewed, although, exceeds the national average rice yield but none of the growers could fully exploit the potential yield of the cultivar. The frequency of the sampled population for getting information from nearby growers was very high mainly due to uncertain and insufficient knowledge provided by the other sources. Fifty-four percent of the farmers needed loan for the purchase of fertilizers, insecticides etc for rice crop and thirty-two percent declared banks as the suitable source of credit. Water shortage, high costs of inputs, non-availability of skilled labour during peak planting season, sub-optimal plant population, weeds and pest infestation, high dependence of knowledge on nearby growers and low price of rice in the local market were the major restrictions in higher yields of rice in Dera Ismail Khan, NWFP, Pakistan.
  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.
  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.
  M. Ayyaz Khan , Naeem Ullah Khan , Khalil Ahmad , M. Safdar Baloch and M. Sadiq
  An experiment was carried out to see the effect of different NP levels on maize hybrid "3335". The fertilizer levels were 90-90-90, 90-120-90, 90-150-90, 150-90-90, 150-120-90, 150-150-90, 210-90-90, 210-120-90, and 210-150-90 Kg ha -1 NPK including control having no fertilizer. The results revealed that maximum plant height (175.8 cm), number of cobs/plant (2.067), number of grains/cob (374.3), 1000-grain weight (226.5 g), Biological yield (15.42 t ha -1), and grain yield (48.08 t ha -1) was obtained by the application of NPK @ 210-120-90 kg ha -1. This level proved to be the optimum for maize crop under local conditions of Dera Ismail Khan.
  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.
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