Agriculture Reference
In-Depth Information
The effect of a dwarfing interstock is proportional to the length of the
interstock (Parry and Rogers,
). Use of long interstocks
of vigorous clones can result in increased tree size of both apple (Grubb,
; Lockard,
). Dwarfing interstocks induce
precocity in cropping, the effect being greater the longer the interstock, while
vigorous interstocks reduce precocity with this effect tending to be greater the
greater the length of interstock (Parry and Rogers,
) and pear (Wertheim and Toorenaar,
) found
that increasing the length of interstock of 'Clark Dwarf' did not significantly
reduce the size of the trees until after the onset of flowering, i.e. the effect on
flowering was not a consequence of the effect on vigour. Long interstocks of
'M.
). Rauch (
' are even more dwarfing than those of 'M.
' although the reverse is true
with short interstocks (Parry and Rogers,
).
Ingeneraltherelationshipbetweenyieldandtreesize(croppingefficiency)is
similar whether tree size is controlled by rootstock or by interstock (cf. Chapter
, especially Figures
.
and
.
).
References
Blanco, A. (). First results on growth and cropping of pear trees budded at
different heights.
Acta Horticulturae
, -.
Buchloh, G. ( ). The lignification in stock-scion junctions and its relation to
compatibility. In
Phenolics in Plants in Health and Disease
, ed. J.B. Pridham, p. .
Long Island City, NY: Pergamon Press.
Czynczyk, A. (
). Eighteen years results with dwarf interstocks 'M.
' and
'B.
' on growth and cropping of two apple cultivars.
Acta Horticulturae
,
.
Davies, D.L., Guise, C.M., Clark, M.F. and Adams, A.N. (
-
). Parry's disease
of pears is similar to pear decline and is associated with mycoplasma-like
organisms transmitted by
Cacopsylla pyricola. Plant Pathology
,
-
.
Ferree, D.C. and Carlson, R.F. (
). Apple rootstocks. In
Rootstocks for Fruit
Crops
, ed. R.C. Rom and R.F. Carlson, pp. -. New York: John Wiley and
Sons.
Garner, R.J. (). Double-working pears at budding time.
Report of the East
Malling Research Station for
, -.
Garner, R.J.().
The Grafter's Handbook.
London: Cassell.
Grubb, N.H. (). The influence of the intermediate in double-worked apple
trees: nursery trials of the 'stembuilder' process at East Malling.
Journal of
Pomology and Horticultural Science
, -.
Gur,A.(). The compatibility of the pear with quince rootstock.
Special
Bulletin , Agricultural Research Station, Rehovot, Israel
.
Gur, A. and Samish, R.M. ( ). The relation between growth curves,
carbohydrate distribution, and compatibility of pear trees grafted on quince
rootstocks.
Horticultural Research
, -.
Gur, A., Samish, R.M. and Lifshitz, E. ( ). The role of the cyanogenic
glycoside of the quince in the incompatibility between pear cultivars and
quince rootstocks.
Horticultural Research
, -.
