Background

Worked from 1968-1973 on "Plant hormones and various chemical and physical stresses". Since 1973 till 1994 on "Non-ripening tomato mutants". In 1979 to 1993 on the role of polyamines in plant developemnt. From 1980 to 1990 on the "Effect of salinity on ripening and quality of various agricultural products". From 1984 till now on "Domestication of wild fruit trees as new crops". The mopst important family is the Cactaceae -water saving CAM plants, which are dealt with both applied and biological points of view. Breeding of new improved clones of various cacti and other exotic fruit trees.

Current Projects

Breeding F2 offspring of vine-cacti, all are polyploids.

Recent Publications

Weiss, I., Y. Mizrahi, and E. Raveh. 2010. Effect of elevated CO2 on vegetative and reproductive growth characteristics of the CAM plants Hylocereus undatus and Selenicereus megalanthus. Scientia Horticulturae, 123(4): 531-536.

Slawomir Wybraniec, Pawel Stalica, Gerold Jerz, Bettina Klose, Nadine Gebers, Peter Winterhalter, Aneta Sporna, Maciej Szaleniec & Yosef Mizrahi. (2009). Separation of polar betalain pigments from cacti fruits of Hylocereus polyrhizus by ion-pair high-speed countercurrent chromatography. Journal of Chromatography, 1216(41): 6890-6899.

Weiss, I., Raveh, E & Y. Mizrahi. (2009). Effects of CO2 - enrichment and fertilization regimes on net CO2 uptake and growth of Hylocereus undatus. J. Amer. Soc. Hort. Sci. 134: 364-371.

Weiss, I., Y. Mizrahi & E. Raveh. (2009). Chamber response time: a neglected issue in gas exchange measurements. Photosynthetica 47(1): 121-124. ttp://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s11099-009-0018-3

Hillman, Z., Mizrahi, Y. & Beit-Yannai, E. (2008). Evaluation of valuable nutrients in selected genotypes of Marula (Sclerocarya birrea ssp. Caffra). .). Scientia Horticulturae. 117: 321-328.

Ph.D. Hebrew University of Jerusalem, 1972