Phosphoload The Answer To Superbeud!!!!

Standaman said:

Gunnaknow that's made me laugh! I don't see any on the label so i'm guessing it's not in there.

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Definitely in there are they? Well if that's the case then i can't see how after being pulled from sale Dutch Hydro can sell it and keep it from us and trading standards and/or environmental health.

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Country Mon said:

Lofty and Nifty -
Another major factor to consider is that paclobutrazol and other triazole PGRs are unique in that they become fixed in the plant tissues after application. This implies that the chemical does not migrate to new growth. New growth in our case = buds and sugar leaves.

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TRANSLOCATION AND EFFICACY OF
APPLICATION METHODS

Triazoles are primarily believed to be transported acropetally in the
xylem (Davis et al. 1988). However, recent findings show that PBZ is not
exclusively xylem mobile as previously believed. In some plants (e.g.
Pistachio chinensis Bunge, Ricinus communis L.), PBZ has been
detected both in xylem and phloem sap (Witchard 1997a,b), indicating
that xylem is not the only route for translocation of triazoles (Browning
et al. 1992; Hamid and Williams 1997). Results obtained with Ricinus,
where PBZ was introduced through the hollow petioles, raise the pos-
sibility of introducing PBZ into the plant in a different way so that it is
transported by both xylem and phloem, thus optimizing its effectiveness
(Witchard 1997b).

The metabolic fate of applied triazoles has not been studied thor-
oughly, though most have a high chemical stability (Jung et al. 1986) and
thus tend to be catabolized by plants at a very slow rate (Davis and Curry
1991). It has been suggested that a strong correlation may exist between
persistence of a triazole and its efficacy as a PGR (Reed et al. 1989). Two
of the most active triazoles, PBZ and UNI, are comparatively resistant
to degradation (Sterrett 1988) and this may limit their widespread use
on food crops.

A simple and efficient application method, capable of yielding con-
sistent results, is a top priority in the commercial success of a growth
regulator. Triazoles provide effective size control on many ornamental
crops. However, when growers began to use these chemicals, many
encountered difficulties in obtaining uniform marketable size. This was
due partly to the high activity of the chemical and partly to the lack of
an appropriate application procedure.

In commercial practice, spray applications are often the method of
choice, but can result in nonuniform plant size if suitable coverage is not
obtained (Barrett and Nell 1990; Barrett et al. 1994a,b). It was observed
that PBZ was more active when applied to the growing media and taken
up through the roots (Davis et al. 1988) than when applied to leaves only.
High spray volumes, which result in more thorough coverage of plant
stems and a greater amount of solution entering the medium, increased
the efficacy of PBZ (Barrett and Nell 1990).

Barrett et al. (1994a) compared drench* and spike application of
paclobutrazol for height control of potted floriculture crops. PBZ
drenches and spikes were effective for all crops tested, with a similar
concentration response for all, except that drenches had greater efficacy
than spikes on caladium that had the most rapid development rate. Both
drench and spike applications were also found suitable for controlling
growth of tulips (Deneke and Keever 1992). Bailey (1989) demonstrated
that UNI efficacy on chrysanthemum and poinsettia is not affected by
spray carrier volume when concentration was varied to give the same
active ingredient per plant. On the other hand, Gilbertz (1992) reported
that PBZ and UNI had greater efficacy if applied soon after pinching,
when there would be less leaf coverage on the medium. Barrett et al.
(1994b) conducted experiments to determine effects of application site
and spray volume on UNI efficacy. UNI applied only to mature leaves
was less effective than were stem applications, whole-plant sprays, or
medium drenches. The effect of UNI spray volume was also greater
when the medium was not covered. These results indicate that the effi-
cacy of UNI increased with increased stem coverage and with amount
of chemical reaching the medium, which was achieved with high spray
volumes. These findings are consistent with the view that UNI is also
primarily transported via the xylem and does not move out of leaves via
the phloem (Davis et al. 1988).

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Standaman said:

Gunnaknow that's made me laugh! I don't see any on the label so i'm guessing it's not in there.

Definitely in there are they? Well if that's the case then i can't see how after being pulled from sale Dutch Hydro can sell it and keep it from us and trading standards and/or environmental health.

I don't know if you have Superbud or not but if it's the picture on ebay your getting your theory from then you can't "definitely" say that it does have Paclobutrazol etc in the product.

I hope it don't as it's not on really but any info i get on it i will post on here of course

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gunnaknow said:

Hi Country, do you have any references that show that triazoles become fixed in the tissues after application? Studies show that triazoles like paclo and uniconazole are transported primarily up the xylem but also the phloem, so they do translocate to other tissues but what happens to them when they get there is another thing. I'd be interested to know you're sources. Thanks.



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