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Articles by Gul Hassan
Total Records ( 4 ) for Gul Hassan
  Riazud Din Ahmad , Abdul Jabbar Malik , Mohammad Ali Chang , Gul Hassan and Mohammad Subhan
  An 8-parent diallel cross experiment was conducted on Gossypium hirsutum L. to estimate the manifestation of heterosis and heterobeltiosis for yield and its components viz; No. bolls of /plant, seed cotton yield/plant, seeds/boll and staple length. Out of fifty six F1 hybrids, 51 hybrids showed positive heterosis in case of bolls/plant, 47 in yield of seed cotton/plant, 47 in No. of seeds/boll and 48 in Staple length. Heterobeltiotic values were recorded 55 in bolls/plant, 31 for yield of seed cotton, 32 for No. of seeds/boll and 43 for staple length as positive values.
  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.
  Naeem Khan , Gul Hassan , Muhammad Azim Khan and Ikramullah Khan
  A field experiment was conducted during 2000-01, to investigate the effectiveness of different herbicides for controlling weeds in wheat. Significant differences were observed among the times of application for weed density after herbicidal treatments and number of tillers plant-1. Similarly significant differences were recorded for herbicidal treatments in the traits like weed density after herbicidal application and number of tillers plant-1. The interactions of times of application and herbicides were significant for weeds density after herbicidal application and number of tillers plant-1. The 45 DAS herbicidal application time was best for tillers plant-1. As a whole the herbicidal application at 45 DAS provided excellent weed control. Weeds were most effectively controlled by buctril-M + topik, isoproturon alone and logran + topik. None of the herbicides except isoproturon 75 WP at 30 DAS application had a phytotoxic effect on the wheat crop. Highest number of tillers plant-1, were produced by buctril-M + topik and logran + topik as compared to weedy check.
 
 
 
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