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Articles by Ihsanullah
Total Records ( 9 ) for Ihsanullah
  Naeem Khan , Amanullah Jan , Ijaz Ahmad Khan , Muhammad Azim Khan and Ihsanullah
  An experiment was conducted at Agronomy Farm, NWFP Agricultural University, Peshawar during 1998-99 to study the response of wheat cultivars to varying seeding rates under rainfed conditions. The cultivars sown were Khattakwal, Suleman-96 and Tatara-96. Seed rates were 40, 80, 120 and 160 kg ha -1. The results revealed that the wheat planted at the rate of 160 kg ha -1 significantly produced highest grain yield 2733 kg ha -1 as compared to lower seeding rate. Similarly highest biological yield of 8466 kg ha -1 was recorded for highest seed rate (160 kg ha -1), and the lowest biomass yield of 5807 kg ha -1 for the lowest seed rate of 40 kg ha -1. Highest number of 215 spikes m -2 was for the highest seed rates and lowest of 113 spikes m -2 were for the lowest seed rate. Among the cultivars, Suleman-96 gave the highest grain yield (2708 kg ha -1) whereas Tatara-96 and Khattakwal produced 2500 and 1233 kg ha -1, respectively. Suleman-96 produced more number of grains/spike than Tatara-96 and Khattakwal. In addition, the 1000 grain weight of Suleman-96 was slightly more than Tatara-96 and Khattakwal i.e., 43, 42 and 31g respectively. Number of spikes m -2 were equal in case of Khattakwal and Tatara-96, whereas slightly less in Suleman-96 i.e., 163, 160 and 164 respectively. Khattakwal was highly susceptible to lodging as compared to Suleman-96 and Tatara-96. However, Suleman-96 had a higher number of loose smut attacks and the seeds should be treated with fungicides before sowing.
  Ihsanullah , Fazal Hayat Taj , Habib Akbar , Abdul Basir and Noor Ullah
  Highest plant height (47.50 cm) was observed in 43 cm row spacing where plants were spaced 7 cm within rows. Maximum pods/plant (28.25), number of seeds/pod (10.25), biological yield per plant (39.75 g), grain yield per plant (6.87 g), 100-seed weight (4.27 g) biological yield (3854 kg ha -1), grain yield (921 kg ha -1) were recorded for row spacing of 20 cm where plants were spaced 15 cm within rows. Based on these results, 20 cm row-to-row spacing with 15cm plant-to-plant can be recommended for irrigated condition to get higher yield.
  Noorullah Khan , Amanullah Jan , Ihsanullah , Ijaz Ahmad Khan and Naeem Khan
  The research work was conducted to study the effect of nitrogen (0, 40, 80 and 120kg ha-1) and sulphur (0, 30, 60 and 90kg ha-1) on the yield and oil contents of canola variety Dunkled. Data were recorded on number of branch plant-1, pods plant-1, seeds pod-1, 1000 grain weight, grain yield (kg ha-1) and oil content. The effect of nitrogen was significant on all the parameters. Plots that received highest dose of N (120 kg ha-1) had maximum number of branches plant-1 (14), pods plant-1 (760), seeds pod-1 (28.04), thousand grain weight (3.15 g) and grain yield (2653 kg ha-1), while minimum oil content (42.1%). Different doses of sulphur had significantly increased number of branches plant-1 (12), pods plant-1 (582), grain yield (1683 kg ha-1) and oil content (44%), but had not significantly affected seeds pod-1 and 1000 grain weight. Grain yield was significantly higher at the highest levels of both the nutrients applied.
  Ihsanullah , Amanullah Jan , Fazal Hayat Taj , Ijaz Ahmad Khan and Naeem Khan
  All the parameters i.e., days to emergence, days to flowering, days to physiological maturity, number of pods per plant, number of seeds per pod, 100-seeds weight, biological yield, grain yield were significantly affected by sowing dates. Less days to emergence (6.6), less days to flowering (40) and less days to physiological maturity (75.7) were recorded. Biological yield was maximum for June 15 (6000 kg ha-1) followed by July 01(5439 kg ha-1). Number of pods per plant, number of seeds per pod, 100-seeds weight (g), grain yield (kg ha-1) got highest value of 30.2, 5.1, 4.26 and 825 respectively for July 01 sowing. Effect of the various mashbean varieties was significantly different for number of pods per plant, number of seeds per pod, biological yield and grain yield. Among these parameters highest number of pods per plant (20.6) for NARC Mash-1, higher number of seeds per pod (4.9) for NARC Mash-3, greatest biological yield (4400 kg ha-1) for NARC Mash-4 and more grain yield (557.1 kg ha-1) for NARC Mash-1. Interaction between varieties and sowing dates did not significantly affect any parameter. It may be concluded that July 01 sowing date and NARC Mash-1 variety appeared to be suitable for irrigated condition of Peshawar valley.
  Ihsanullah , Fazal Hayt Taj and Ijaz Ahmad Khan
  The research work was conducted to find out the performance of maize under different weed management. The treatments were weeding with khurpa, hand hoe, wheat mulch, oat mulch, Primixtra 500FW @ 1.5 litres per acre, Stomp 330EC @ 1 litre per acre and weedy check. Maximum emergence m-2 (17.50) was for oat mulch, which was at par with wheat mulch (16.75). Minimum weeds density m-2 (3.75), maximum cob length (17.77 cm), number of grains cob-1 (380) 1000-grains weight (294 g) and grain yield (3943) were recorded for Primixtra 500FW. The weed species infesting the field were Cyprus rotendus, Sorghum helepense, Cynodon dactlon, Leptochloa sp., Echinochloa crussgalli, Tribulus terrestris, Convolvulus arvensis and Portulaca oleracea etc.
  Ijaz Ahmad Khan , Gul Hassan and Ihsanullah
  The efficacy of pre-emergence herbicides on the yield and yield components of canola was studied. The herbicides included Treflan 4EC @ 1.20 kg, Dual Gold 960EC @ 1.44 kg, Stomp 330EC @ 0.99 kg and Sencor WP70 @ 0.35 kg a.i ha-1. The data were recorded on weed density m-2, days to 50% flowering, number of branches/plant, number of siliquae/plant, siliqua length (cm), days to maturity, plant height at maturity (cm), number of seeds/siliqua, 1000 seeds weight (g) and seed yield (kg ha-1). None of the herbicides except Sencor WP70 had a photoxic effect on the crop. Minimum weeds m-2 (2.8) were observed in plots to which was applied Treflan 4EC. Maximum weeds m-2 (19.3) were observed in weedy check plots. Number of branches/plant (15.32), number of siliquae/plant (616.4), siliqua length (8.1 cm), number of seeds/siliqua (29.1), 1000 seeds weight (3.77 g) and seed yield (1630 kg ha-1) were maximum in plots, where treflan 4EC was applied.
  Ijaz Ahmad Khan , Gul Hassan , Ihsanullah and Muhammad Azim Khan
  Study was conducted during the rabi season 2000-01, to investigate the effectiveness of different post-emergence herbicides for controlling weeds in canola. The treatments were post-emergence application of ronstar (oxadiazon), fusilade (fluzifop-butyle), topik (clodinofop), puma super (fenoxaprop-ethyle) and agil (propaquizafop) @ 0.36, 0.26, 0.03, 0.75 and 0.15 kg ha-1. Weedy check was also included for comparison. Herbicidal treatments significantly effected weeds density m-2, number of branches plant-1, number of siliquae plant-1, siliquae length (cm), number of seeds siliqua-1, 1000 seeds weight (g) and seed yield (kg ha-1). Among the herbicides, fusilade showed promising results with seed yield (1563 kg ha-1) as compared to weedy check (920 kg ha-1). The weed species found were Convolvulus arvensis, Medicago denticulate, Rumex crispus, Vicia sp. and Anagalis arvensis.
  Habib Akbar , Miftahullah , Muhammad Tariq Jan , Amanullah Jan and Ihsanullah
  Days to tasseling (55.43), days to silking (68.43), plant height (135.76 cm) and biological yield (11890.6 kg ha -1) was significantly increased at 180000 plants ha -1. Maximum 1000-grains weight (125.97 g) and more number of cobs plant -1 (1.61) was obtained at 60000 plants ha -1 while highest grain yield (1777.42 kg ha -1) was obtained at 120000 plants ha -1. Maximum days to tasseling (57.35), silking (69.50), maturity (102.7) and tallest plants (140.23 cm) were recorded for 200 kg N ha -1. Maximum number of plants (104185 ha -1) was harvested from plots receiving 150 kg N ha -1. Nitrogen level of 150 kg N ha -1 resulted in the greater grain yield (2006.95 kg ha -1) and 1000-grains weight (132.73g). Highest biological yield (12291.1 kg ha -1) was recorded for 200 kg N ha -1. Plant population of 120000 plants ha -1 interacting with 150 kg N ha -1 gave maximum grain yield of 2195.75 kg ha -1.
  Muhammad Farooq , Hamid Rashid , Ihsanullah , Zubeda Chaudhry and Khan Bahadar Marwat
  Three wheat genotypes i.e. Bakhtawar-92, Punjab-96 and Inqilab-91 were tested for their response to callus induction frequency and their subsequent regeneration on a variety of media combinations. Bakhtawar-92 appeared to be the most responsive genotype to callus induction followed by Inqilab-91 and Punjab-96. It also produced significantly higher amount of callus as compared with other genotypes. However, the medium containing 2 mg l-1 2,4-D (2,4-dicholorophenoxy acetic acid) was found to be optimum for callus induction irrespective of the genotypes studied. Regeneration frequency of Bakhtawar-92 was 40% on the medium containing 0.1 mg l-1 IAA (Indole acetic acid) and 2.5 mg l-1 BAP (6-benzyl amino purine). Punjab-96 and Inqilab-91 showed regeneration of 25 and 33% on the medium supplemented with combination of 0.1 mg l-1 IAA and 0.5 mg l-1 BAP. Regenerated plants were evaluated for plant height, maturity and seed set. They had favourable significant differences from the control plants for the most important agronomic traits; plant height, days to maturity and kernels/spike etc.
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