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Articles by M. Hassan
Total Records ( 4 ) for M. Hassan
  Amira Sh. Soliman , M. Hassan , Faten Abou-Elella , A.H. Hanafy Ahmed and Souad A. El-Feky
  Objective: This study was carried out to investigate the effectiveness of foliar application of different sources of P on growth performance of Adansonia digitata in Egypt. Materials and Methods: Different sources of P [monoammonium phosphate (MAP), diammonium phosphate (DAP) or hydroxyapatite nanoparticles (nHA)] and unfertilized seedlings (control) were used as a foliar application to study growth parameters and chemical composition of Adansonia digitata grown in a sandy soil during two successive seasons (2014 and 2015). Results: Baobab plants sprayed with nHA showed a significant increase in plant growth characters (plant height, stem diameter, number of leaves per plant, leaf area, root length, total fresh and dry weights) when compared to control plants. Moreover, significant increase in total chlorophyll, carotenoids concentration, total carbohydrates percentage, vitamin C, macro-elements (N, P and K%), crude protein and total phenols content. The anticancer activity of Adansonia digitata leaves against Ehrlich Ascites Carcinoma Cells (EACC) and the antioxidant activity of leaves over control plants were recorded in the same treatment. Meanwhile, it had significant reducing power methods. Conclusion: It is recommended to spray with nHA for increasing plant growth, nutrition status, DPPH and anticancer activity besides, their safety for either environment or human health.
  M.A. Kausar , M. Sadiq , M.A. Khan , M. Hassan and M.A. Haq
  Shoot samples at preflowering stage and grains at maturity from four replicated field trials on advanced germplasm of chickpea along with some of the commercial varieties were collected. Three trials consisted of Desi germplasm with, 12, 12, and 8 entries while the fourth one had 11 entries of Kabuli material. The advanced lines appeared to be highly promising as they gave maximum increase over the old check varieties in grain yield upto 60 percent in first trial followed by 58 percent in second, 53 percent in third and 43 percent in the 4th one. On the overall basis, the whole germplasm under study contained sufficient B and Cu, while Zn and P (in grain) were marginal if not deficient. Almost all the material had relatively higher B in the grain than that of cereals like wheat. After field survey, a followup soil pot culture study was conducted employing 5 varieties and 2 lines on a soil with marginal Zn and B. Variety 6153 responded to 5 mg kg–1 Zn application by 39, CM 72 by 26, NIFA 95 by 17 and mutant CM 1571-1-A by 11 percent, while remaining responded negligibly. Mutant CM 31-1 responded to 1 mg kg–1 B application by 30, CM 1571-1-A, C 44 and 6153 shared the response by 27 percent. Remaining three did not respond or responded negatively. All the entries in the four trials contained marginal Zn i.e., <20 mg kg–1 and sufficient B i.e.,>30 mg kg–1, yet some of them responded to the applications markedly indicating their high B and Zn requirement than reported in the literature.
  Ghazanfar Mahmood , M. Javed and M. Hassan
  The water was alkaline throughout the stretch under study. The electrical conductivity of water at Hudiara nulla was the maximum due to the input of large amounts of salts and other nutrients in thiS tributary. Dissolved oxygen contents were significantly lower at Farrukhabad nulla, Munshi hospital nulla, Baker mandi nulla and Hudiara nulla than rest of the sampling stations. These significantly low values of dissolved oxygen corresponded inversely with the metal ion concentrations in water. There were significant variations among different sampling stations for heavy metals toxicity and physico-chemical variables viz. total hardness, water temperature, dissolved oxygen, pH and electrical conductivity. The variable significance of different parameters with positive and negative partial regression coefficients at different sampling stations were due to the difference of these stations for metals toxicity levels. On the whole, both zinc and iron toxicities in water were positively and significantly dependent on water temperature while negative but significant on pH of water.
  K.A. Mohran , M. Haroun and M. Hassan
  A first trial of detection, isolation and pathotyping of a Newcastle Disease Virus (NDV) field strain was conducted in Qatar. NDV RNA was isolated, amplified and detected from oropharyngeal and cloacal swabs from clinically diseased backyard chickens and Amnioallantoic fluids (AAF) of infected chicken embryos using primary RT-PCR, nested RT-PCR and gel electrophoresing techniques. The 356 and 216 bp RNA fragments were retrieved in primary and nested RT-PCR, respectively. NDV was isolated, identified and pathotyped in commercial chicken embryos using Haemagglutination (HA), Haemagglutination Inhibition (HI) tests, Mean Death Time (MDT) and Intracerebral Pathogenicity Index (ICPI). The causative agent was found to be a highly virulent strain.
 
 
 
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