1. M. A. Abdel Halim, M. A. Amar, A. Hazem, and S. Abdel Hafeez .1975 .Contributions to the germination ofOrobancheseeds with reference to root exudates of host., Ann. Agric. Sci, 20 :127 –139 .
2. Studies on Orobanche hederae Physiology: Pigments and CO2 Fixation
3. E. R. Baker, J. D. Scholes, M. C. Press, and W. P. Quick .1995 .Effects of the holoparasiteOrobanche aegyptiacaon the growth and photosynthesis of its tomato host., Asp. Appl. Biol, 42 :141 –148 .
4. D. A. Callaham, and J. G. Torrey .1981 .The structural basis of infection of root hairs ofTrifolium repensbyRhizobium., Can. J. Bot, 59 :1647 –1664 .
5. C. L. Foy, R. Jain, and R. Jacobsohn .1989 .Recent approaches for chemical control of broomrape (Orobanchespp.)., Rev. Weed Sci, 4 :123 –152 .