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Articles by Muhammad Imtiaz
Total Records ( 2 ) for Muhammad Imtiaz
  Ansaar Ahmed , Ibni Amin Khalil , Murad Ali , Imtiaz Hussain , Muhammad Imtiaz and Gulzar Ahmad
  Background and Objective: Wheat crop is among the leading cereals and its grain is used as a staple food in many countries of the world. Several environmental factors are effecting the performance of wheat crop. Late plantation of wheat crop in Pakistan is one of the factors that reduce the yield. The main aim of this study was to identify and select superior wheat genotype with good adoptability to sowing time under the current changing climatic scenario. Materials and Methods: The present study was carried out to screen newly developed wheat lines across different sowing dates to identify appropriate planting time for these new lines. A set of 7 wheat genotypes was planted on different sowing dates, starting from October, 25-December, 25 with 10 days interval. Results: Data analyses revealed significant effect of sowing time on overall performance of wheat genotype was observed. On the average, wheat crop sown till 15th of November gave better results whereas delayed sowing resulted in reduced grain yield. Similarly, the genotypes also exhibited significant variable performance across different sowing time. However Pr-128 performed well across all sowing dates and was also identified as stable genotypes in overall performance across various sowing dates. Conclusion: From the present study it could be suggested that the most optimum time for sowing of wheat crop is 5-15 of November. Moreover, the genotype Pr-128 in addition to normal sowing it can also be used as short duration variety in those areas where the wheat sowing is delayed due to late harvesting of other crops i.e., Maize, sugarcane etc.
  Zahoor Ahmad Swati , Muhammad Imtiaz , Sardar Ali and Raziuddin
  Physiological response of six wheat genotypes to Water defibit conditions was studied. Leaf water potential (LWP) and relative leaf water content (RLWC) were used to asses the influence of water stress at four leaf, heading, anthesis and senescence stages. Different stages of plant appeared to be negatively correlated with LWP because with growing age, LWP became more negative. The treatment effects dr, LWP at different stages of plant were significantly different, maximum value was recorded for full irrigation folloWed by gradual decrease in one-half and one-fourth irrigation. Genotypes appeared to differ significantly at anthesis only Unlike LWP, treatments as well as genotypic differences for RLWC at heading and anthesis were significani Among the genotypes, Barani-83 and Khushal-69 maintained higher LWP at anthesis, may be due to having drought avoidance potential, as their yield was comparatively less affected by external water stress. Sonalika and PR-33 appeared to tolerate lower LWP to produce reasonable yield hence can be regarded drought tolerant.
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