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Articles by Khalil Ahmad
Total Records ( 7 ) for Khalil Ahmad
  Rahm Din , Muhammad Qasim , Khalil Ahmad and Shah Jehan
  In all wheat genotypes days to earing initiation were significantly increased due to 25 Krad, 35 Krad and 45 Krad, doses except 15 Krad dose which slightly enhanced the earing but as the doses increased to higher level, a delay in days to earing was observed. The value recorded for various doses of 15, 25, 35 and 45 Krad were ranging from 89.20 to 101.25 days showing a maximum increase of 12.45% in time taken to earing initiation due to 45 Krad dose in comparison to control. Similarly significant delay in earing completion was recorded in all the genotypes with various doses except 15 Krad with which a slight decrease was obtained in time taken to earing completion.
  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).
  Muhammad Ayyaz Khan , Shahid Akbar , Khalil Ahmad and Muhammad Safdar Baloch
  The performance of six corn hybrids i.e. C-922, C-7878, C-7777, C-7877, P-3163 and R-4208 was evaluated for grain yield. The Pioneer hybrid P-3163 produced the highest plant height cob length (16.05 cm) and 1000-grains weight. The corn hybrid C-7777 produced the highest plant stand and grain yield (7.25 t ha–1) while the number of cob per plant (0.945) and number of grains per cob (518.1) were maximum in C-7877. The corn hybrid R-4208 proved to be inferior variety regarding the yield and yield components.
  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 Ayyaz Khan , Ghazanfar Ullah Sadozai and Khalil Ahmad
  The experiment was conducted to study the effect of sowing rates on the yield components and grain yield of wheat variety Punjab-98 at Agronomic Research Area, Faculty of Agriculture, Gomel University, Dora Ismail Khan during 1998-99. All sowing rates had significant effect on tillers per plot. Sowing rates higher than 100 kg ha–1 increased tillers over low seed rate of 50 kg ha–1. High sowing rates than 100 kg ha–1 did not show any significant effect on spike length over low seed rate (50 kg ha–1). Low seed rate produced more number of grains per spike over high seed rates. Sowing rates from 50 kg ha–1 to 500 kg ha–1 had no significant effect on 1000-grain weight. The highest seed rate did not produce the highest biological yield mainly due to plant competition for nutrients, light and air. The lowest biological yield in case of low seed rate was merely due to low plant population. The grain yield was decreased by using seed rate above 250 kg ha–1. The highest grain ratio towards total dry matter production was found in plots sown at low seed rate (50 kg ha–1) which can be attributed to more grains per spike. There was positive correlation between yield components and grain yield.
  Inayat Ullah Awan , Muhammad Zubair Sulamani , Khalil Ahmad and M. Safdar Baloch
  The study was aimed at evaluating the performance of five Basmati rice varieties tasted at the Agronomic Farm, Gomal University, Dera Ismail Khan, during 1997. Variety Basmati-385 out yielded rest of the varieties by yielding 3.98 t ha–1 of paddy with maximum normal kernels (77.82%) and lowest sterility (33.28%). It was followed by Basmati-370 on all the parameters studied. Varity C-6129 was highest in straw yield and 1000-seed weight. Variety Basmati-198 didn’t perform well having statistically the lowest score in most of the recorded characters. Amongst these varieties, the productivity and adoption of Basmati-super 385 was remarkable. Although it was also praiseworthy for physicochemical properties yet it was superceeded by Basmati-super on account of slight differences. On the basis of these results, Basmati-385 is recommended for promising yield and Basmati-super for the quality attributes.
  Muhammad Ayyaz Khan , Khalil Ahmad and Jamil Ahmad
  Effect of various levels of potassium on the yield of sunflower (Helianthus annuus L.) was studied at the Agronomy Research Area, Gomal University, D.I. Khan, during autumn 1997. The highest 1000-seed weight (53.71 g) was obtained from the plot, fertilized with 150kg potassium ha–1, while the minimum 1000-seed weight (46.41 g) was obtained in common plots. the highest seed yield (4153 kg ha–1) was also obtained in plots where 150 kg potassium per hectare was applied. The lowest seed yield was recorded in control plots (3402 kg ha–1). It can be suggested from these results that potassium. can be applied up to 150 kg ha–1 to obtain high seed yield of sunflower and to maintain the fertility regarding potassium I in the soil of D.I. Khan.
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