Articles
PRUNING OF PROTEA CV. CARNIVAL TO OPTIMISE ECONOMIC BIOMASS PRODUCTION
Article number
387_11
Pages
99 – 106
Language
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.
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.
Publication
Authors
A.I. Gerber, E.J. Greenfield, K.I. Theron, G. Jacobs
Keywords
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