1. Ezzat, A.E.B.S., A.M.A. El-Hameed, H.M.I. Ahmed and A.A. El-Awady, 2011. Improving nitrogen utilization efficiency by potato (Solanum tuberosum L.) A. influence of nitrification inhibitors in combination with different nitrogen sources on reducing nitrogen losses, improving productivity and chemical composition. Nat. Sci., 9: 26-33.
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2. Ezzat, A.E.B.S., A.A. El-Awady and H.M.I. Ahmed, 2011. Improving nitrogen utilization efficiency by potato (Solanum tuberosum L.) B. effect of irrigation intervals, nitrogen rates and veterra hydrogel on growth, yield, quality, nutrient uptake and storability. Nat. Sci., 9: 34-42.
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3. Ahmed, H.M.I. and M.M.A. Farag, 2011. Alleviation of salinity stress in lettuce during germination by seed priming. J. Plant Prod., 2: 725-737.
4. El-Saifi, S.K., H.M.I. Ahmed, S.M. Hasan, M.M. Morsi and R.S. El-Shatoury, 2010. Seed priming influences seed germination and seedling growth of tomato under different salinity levels. J. Plant Prod., 1: 159-170.
5. El-Saifi, S.K., H.M.I. Ahmed, M.M. Morsi, S.M. Hasan and R.S. El-Shatoury, 2010. An attempt to improve sweet corn seed germination under low temperature conditions by using seed priming. J. Plant Prod., 1: 171-181.
6. El-Nasr, M.E.A., M.H. Tolba and H.M.I. Ahmed, 2010. Combining ability for some characters in summer squash (Cucurbita pepo L.). J. Plant Prod., 1: 663-671.
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7. Louwaars, N.P., H.M.I. Ahmed and A. Demissie, 2009. IP in plant breeding and biotechnology: Plant variety protection and patents in Africa. Proceedings of the 1st All Africa Congress on Biotechnology, Sept. 22-26, Nairobi, Kenya, pp: 92-101.
8. Ahmed, H.M.I., D.C.F. Dias and A.M. Moghazy, 2009. Effect of on-farm seed priming on yield and seed quality of bean (Phaseolus vulgaris L.). J. Agric. Sci. Mansoura Univ., 34: 5019-5031.
9. Ahmed, H.M.I., B.R. Gregg and N.P. Louwaars, 2009. Seed systems for under-utilized crops. Acta Hortic., 806: 459-464.
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10. Zaghloul, M.M., S.T. El-Afifi, E.H. Asker and H.M.I. Ahmed, 2002. Pre sowing seed heat treatments in relation to vegetative growth, flowering and yield of Summer squash Cucurbita pepo. Proceedings of 2nd International Conference on the Horticultural Science, Sept. 10-12, Kafr El-Sheikh, Egypt, pp: 132-139.