Dolinski, R. and M.M.M. Hefny, 2006. Regeneration of hybrid Lucerne (Megicago sativa L. subsp. falcate X subsp. sativa) plants from shoot tips. Ann. Univ. Maria Curie-Skodowska, 61: 63-73.

El-Shazly, M.S., M.A. El-Ashry, E.M. Gaafar and M. Hefny, 1997. Inheritance of some grain quality traits of maize (Zea maize L.). Egypt. J. Appl. Sci., 12: 110-121.

Hefny, M., 2007. Genotypic variability within alfalfa populations for yield, morphological traits and protein content. Alexandria J. Agric. Res., 52: 1-16.

Hefny, M., 2010. Genetic control of flowering traits, yield and its components in maize (Zea mays L.) at different sowing dates. Asian J. Crop Sci., 2: 236-249.
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Hefny, M., R. Dolinski and W. Małek, 2001. Variation in symbiotic characters of alfalfa cultivars inoculated with sinorhizobium meliloti strains. Biol Fertil Soils, 33: 435-437.
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Hefny, M.M. and A.A. Aly, 2008. Yielding ability and nitrogen use efficiency in maize inbred lines and their crosses. Int. J. Agric. Res., 3: 27-39.
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Hefny, M.M. and R. Dolinski, 1999. The ability to germination of alfalfa cultivars under salinity. Plant Breed. Seed Sci., 43: 39-46.

Hefny, M.M., 2007. Estimation of quantitative genetic parameters for nitrogen use efficiency in Maize under two nitrogen rates. Int. J. Plant Breed. Genet., 1: 54-66.
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Hefny, M.M., 2011. Agronomical and biochemical responses of white Lupinus albus L. genotypes to contrasting water regimes and inoculation treatments. J. Am. Sci., 7: 187-198.
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