Terminal and subterminal cullings of jacobinia camea, Nichols "local cullivar"
were immersed for two hours in 0, 50, 90, 120. 150 and 180 ppm uniconazole
solutions. The experiments were conducted during two successive seasons in a form
of a split design, the main plots represented the culling types, while uniconazole rates
resembled )he sub-plots. The general effects of the two factors showed that: The terminal cutting derived plants significantly surpassed the subterminal cutting
derived ones by the following traits: rool numbers and length, plant height and
leaf area during beth seasons, shoot numbers and dry weight, noret numbers and
early nowering in Ihe ,'I season and inflorescence diameter and dry weight in the
2nd one. In both seasons, the uniconazole rates from SO to 180 ppm significantly reduced
the rooling percenlage. the root numbers and length, the plant heighl. the
internode length. the leaf area and the shool anci inflorescence dry weighls and
delayed the nowering lime, while those of 60 and 90 ppm signincanlly reduced
the innorescence diameter. Also in both seasons. the number of internodes and
shoots and the inflorescence longevity were enhanced with the rates from 60 to
'180 ppm. while 'he innorescence lenglh and Ihe number of norels were
significanlly increased with those from 60 to 150 ppm and from 90 to 150 ppm;
respectively. The leaves of the subterminal cutting derived plants significantly contained higher
amounts of chlorophylr "a" and reduClnll. non-reducing artd loral sOluole sugers
than those of the terminal cutting derived ones, while the roots of the laters
significantly contained higher amounts of non-reducing and total soluble sugars
than those of the formers.         -I.    The unlConazole rates (rom 60 to 160 ppm significantly increased the leaf chlorophyll
"a" and ·b" and decreased non-reducing and total soluble suga~ in the leaves and
rools. The reducing sugars were significantly increased in the leaves with the rales of
120 and 150 ppm and in the roots with those of 90 and 150 ppm. but were decreased
in both organs with the (ate of 60 ppm. The starch was increased in the leaves with
the rates. from 60 to 180 ppm and in the roots with thai of 90 ppm, but those of 60.
120.150 and 180 ppm decreased 11 in the roots. The interaction OelWeen the cul1ing Iypes and the uniconazole rates
exhibited significant and highly significant effects on the studied traits except the
rooting percentage and the leal chlorophyll "a",