ISHS Acta Horticulturae 387: III International Protea Research Symposium
PRUNING OF PROTEA CV. CARNIVAL TO OPTIMISE ECONOMIC BIOMASS PRODUCTION |
| Authors: | A.I. Gerber, E.J. Greenfield, K.I. Theron, G. Jacobs |
| Abstract:
Plants of Protea cv. Carnival were pruned on six different dates in 1991. The 1992 and 1993 yields were analysed in terms of vegetative, reproductive and economic biomasses. The pruning date influenced biomass allocation, and determined whether flowers were produced annually or biennially. Pruning in March, April or May resulted in an annual flowering cycle, with less than 40% of the fresh mass produced being reproductive. Pruning in July, August or September resulted in up to 70% reproductive biomass being produced in a biennial cycle. The biennial cycle resulted in an earlier harvest. | |
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