TRUE BREEDING STRAIN (An IBL).
The first thing the breeder must do is to
understand the genotype of every trait that is
featured in his/her ‘ideal’ strain. In order to
do this the genotype of each parent strain or
population for that same trait must be
understood. Since there are 4 traits that the
breeder is trying to isolate then 4 x 2 = 8
Genotypes for these phenotype expressions must
be made known to the breeder.
Let us take the Pale Green Leaf of the
Silver Haze for starters.
The breeder will grow out as many Silver
Haze plants as they can find. They will then
note down if any of the population have any
other leaf colour trait. If not, then the
breeder will note that the trait is homozygous
(We will call the trait - M). Now it can either
be MM or mm. If other coloured leaves appear in
with the population then the breeder must
assume that the trait is not homozygous, but
Silver Kush
Pale Green leaf *
Hashy smell *
Silver flowers *
Short plants *
