CHE REFERENCE LIBRARY - Pole Shift Survival Information

74 ‘l’rrl!: NUIZSEIZY-k?~4N Q/AL
the new plunt. ” Arching,” or very abrupt. bending, as in
serpentine la!-t‘rirq, serves the same purpose and is the ouly
attentioil ~lecessar~ in most vines. A “ tofi$Ied ” carnat,ioii
la?rer is showi~ in IJig. 62. The layered stem is at S, a,nd t,he
root is seen to have formed from the tongue. This met,hod of
propa,rratiiig c3riMions is common in I’:urope, but the plant is
always grown from c+uttings in ihlericit.
Wlieii large numbt~rs of plant,s are desired, as in commercial
nurseries, it is often necessary to cut hack the parent plant to
the jiround, or very nearly so, for
the purpose of securing many
shoots fit for layering. A plant
cut back in the spring will pro-
duce shoots fit, for layering the
following spring ; or some species
produce them in abundance the
FIG. 64. Mounti-layering of same year if layers of green or
gooselmry.
immature wood are desired. These
parent or stock plants are called stooEs by nurserymen.
In many species, layerage is performed to best advantage
by heap& cp earth over t.he stool and around the shoots. This
is known as ~o~rld- or stoob-lcrycring. The shoots send out
roots nea,r the base, md straight stocky plants are obtained.
The En,nlish gooseberries are propagated a,lmost exclusively
in this way in this country. Fig. 64 shows a row of moundla>-ered
gooseberries. The shoots are allowed to remain in
layerage two years, in the case of English gooseberries, if the
best plants are wanted, but in many species the operation is
completed in a single season. Quinces and Paradise apple
stocks are extensively mound-layered. The practice is most
useful in low plants that produce short and rather stifll shoots.
Sometimes these layers are severed at the end of the first season,
and the plants are grown in the nursery row for a year before
they are placed on the market.
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