ESTABLISHING GENETIC PARAMETERS BLACK POD DISEASE FOR SOME OF ACEH’S ORIGIN GENOTIPE COCOA (Theobroma cacao L.)

Abstract

Research of prediction parameter genetics in cacao plants at the nursery fase important as
information on cacao plants that is resistant to attack Phytoptora palmivora and can
characterized of morphology of that plants. The goal of this research is to know the value of
thought of the parameters of genetics on growth and resistance characters to black pod
disease for some of Aceh’s origin genotypes. The research is done in two packages, namely
the growth and resistance plants packages. Design used are thought of random complete(ral)
with ten genotypes as treatments and repeated as many as three times. Variables endurance
are qualitative variable (the form of stem of plant, a leaf shape, form the base of a leaf, the
form of leaf tips, and flush color) quantitative variable (high plants, long leaves, number of
leaves per stem, wide leaves, and the angle between the leaves with stem), and resistance
variable (the incubation, the percentage of disease, and severity of illness). The result show
that: genotype categorized somewhat endurance element is AT7 and SR45.