most important dwarfing cherry rootstock in Central Europe.
GiSelA®5(S) has performed very well
worldwide in the temperate zone with different soil and climatic conditions,
with a great number of cultivars, various training systems and planting
densities and is regarded as dwarfing standard (about 50 % weaker than P. avium).
In Germany, currently far more than half of the new intensive commercial
orchards are planted on GiSelA®5(S).
GiSelA®5(S) is also used
successfully as rootstock for sour cherries.
GiSelA®5(S) is recommended for
cultivation on good soils.
GiSelA®5(S) is suited for different
growing intensities, including cultivation under cover. When trained as
spindle, common distances in the row range from 2,5m to 3,0 m.
GiSelA®6(S) is less demanding to
soil quality, water supply and cultural management than GiSelA®5(S). The vigor
of this clone is between GiSelA®5(S) and P. avium. It is adapted to less
intensive cultivation. Despite of vigorous growth in the first years, trees
start to crop early.
GiSelA®6(S) facilitates the change
from vigorous to size-reducing rootstocks. In the U.S., GiSelA®6(S) is the most
often planted GiSelA® type.
GiSelA®6(S) is the rootstock of
choice for lighter soils or heavier soils without irrigation possibility.
GiSelA®6(S) should be selected, if
trees are trained as crowns with permanent scaffolds, for more extensive
orchards and greater plant distances.
alternative to GiSelA®5(S) and 6(S).
GiSelA®12(S) induces similar vigor
as GiSelA®6(S), but may also be more vigorous under some conditions. In Europe,
GiSelA®12(S) gains importance at sites where unfavorable for GiSelA®6(S) (windy
sites and high precipitation).
Less fruitfulness compared to
GiSelA®5(S) and GiSelA®6(S) is assessed as positive as there is less risk of
overcropping when combined with self-fertile cultivars. It induces precocity
and good fruit size which is enhanced with regular pruning. Besides good winter
hardiness, GiSelA®12(S) is also adapted to hotter climates.
GiSelA®12(S) has been classified as
tolerant to viruses PDV and PNRSV.
less demanding rootstock.
Size-control of GiSelA®13(S) is
comparable to GiSelA®6(S). GiSelA®13(S) has many advantages known from
GiSelA®5(S), as precocity, no suckers and flat branching angles, as well
as good grafting compatibility. This rootstock has performed very well under
conditions suboptimal for GiSelA®5(S). Even on less favorable soils and under
replanting conditions, GiSelA®13(S) achieved high yields and always good fruit
In South America, GiSelA®13(S)
stood out by its tolerance to drought.
GiSelA®13(S) is the ideal rootstock
when combined with self-fertile varieties.
most vigorous clone, adapted to replanting.
GiSelA®17(S) is the most vigorous
clone of all GiSelA® types. Trees will be 20 – 30% smaller than trees on F12/1
and are much more precocious. Due to good compatibility and tree health,
GiSelA®17(S) is an alternative to Maxma 14. In trials in North America and
Germany, GiSelA®17(S) showed good fruit quality and high and early crops.
The parental species Prunus
canescens and Prunus avium make this rootstock very robust and suitable for
No tree losses or other adverse
characteristics have been observed.
There is less risk of overcropping
than with GiSelA®5(S) or GiSelA®6(S), which makes GiSelA®17(S) very well suited
for combination with self-fertile cultivars. There is tolerance towards PDV and
GiSelA®17(S) is less demanding to soil and climatic
conditions and cultural intensity than GiSelA®5(S).