Faculty of Natural and Agricultural Sciences
School of Agricultural and Food Sciences
Department of Plant Production and Soil Science
Hammes, PS
MSc(Agric) DSc(Agric)(Pret) - Professor
Contact Details
Research Interests
Research Output
Contact Details:
Telephone number: 012 420 3219
Fax number: 012 420 4120
E-mail address: phammes@postino.up.ac.za
Research Interests:
Sustainable plant production
Soil water relations and plant water use
Research Output:
Research articles in refereed specialist journals:
Allemann J, Robbertse PJ, Hammes PS: 2003. Organographic and anatomical evidence that the edible storage organs ofPlectranthus esculentus N.E.Br. (Lamiaceae) are stem tubers. Field Crops Research, 83, pp 35-39.
Murata MR, Hammes PS, Zharare GE: 2003. Effect of solution pH and calsium concentration on germination and early growth of groundnut. Journal of Plant Nutrition, 26 (6), pp 1247-1262.
Stander EIM, Hammes PS, Beyers EA: 2003. Survival ofRalstonia solanacearum biovar 2 in soil under different cropping systems. South African Journal of Plant and Soil, 20 (4), pp 176-179.
Loonat TA, van den Heever E, Hammes PS: 2003. Effect of temperature on the germination of grain Amaranth. South African Journal of Plant and Soil, 20 (3), pp 152-153.
Allemann J, Hammes PS: 2003. Chemical composition of South African Plectranthus esculentus tubers. South African Journal of Science, 99 / Mar/Apr, pp 127-129.
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