Clone, growth and stimulation : latex production factors.
Author
Gohet, E.,
autor.
aut
56667
Clement, A.
56666
Eschbach, J.M.
42529
Jacob, J.L.
42661
Prevot, J.C.
42662
Como citar
Abstract
Variations in tree growth, yields and physiological condition (in terms of latex sucrose and mineral P contents) of 5 Hevea clones (AF 261, AVROS 2037, PB 217, GT 1 and PB 235) under up to 78 stimulations per year (using Ethrel [ethephon]) were studied in a 7year trial. The results indicated strong competition for assimilate distribution between growth and production and revealed the limits of effective stimulation for each clone. Beyond these clonal limits, serious malfunctioning occurred. It wasconcluded that in order to be effective, stimulation must only be used if the clone typology and physiological condition of the latexbearing tissue in the topped trees are precisely known. Variations in tree growth, yields and physiological condition (in terms of latex sucrose and mineral P contents) of 5 Hevea clones (AF 261, AVROS 2037, PB 217, GT 1 and PB 235) under up to 78 stimulations per year (using Ethrel [ethephon]) were studied in a 7year trial. The results indicated strong competition for assimilate distribution between growth and production and revealed the limits of effective stimulation for each clone. Beyond these clonal limits, serious malfunctioning occurred. It wasconcluded that in order to be effective, stimulation must only be used if the clone typology and physiological condition of the latexbearing tissue in the topped trees are precisely known.
Variations in tree growth, yields and physiological condition (in terms of latex sucrose and mineral P contents) of 5 Hevea clones (AF 261, AVROS 2037, PB 217, GT 1 and PB 235) under up to 78 stimulations per year (using Ethrel [ethephon]) were studied in a 7year trial. The results indicated strong competition for assimilate distribution between growth and production and revealed the limits of effective stimulation for each clone. Beyond these clonal limits, serious malfunctioning occurred. It wasconcluded that in order to be effective, stimulation must only be used if the clone typology and physiological condition of the latexbearing tissue in the topped trees are precisely known.
Palabras clave:
biochemistry
Cote d'Ivoire
crop yield
ethephon
frequency
growth rate
harvesting
Látex.
metabolism
phosphorus
plant development
plant growth regulators
rubber plants
source sink relations
sugar
tapping
tropical crops
Biochemistry
Biochemistry
Biochemistry
Ethephon
Harvesting
Metabolism
Metabolism
Phosphorus
Plants
Plant regulators
Rubber plants
Sugar
Sugar
Tropical crops
biochemistry
Cote d'Ivoire
crop yield
ethephon
frequency
growth rate
harvesting
Látex.
metabolism
phosphorus
plant development
plant growth regulators
rubber plants
source sink relations
sugar
tapping
tropical crops
Biochemistry
Biochemistry
Biochemistry
Ethephon
Harvesting
Metabolism
Metabolism
Phosphorus
Plants
Plant regulators
Rubber plants
Sugar
Sugar
Tropical crops
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