4 C1 re. 
SL ET I A <hr, A 
We began collecting dwarfing rootstock material in 1941, Our 
Malling series of stocks came directly from the Geneva, N, Y, Bxperi- 
ment Station and the Clark Dwarf fromthe Iowa Experiment Station, 
During the years from 1941 to the present, we have been propagating 
and building up our supply and producing tuidded trees for orchardists, 
Our first dwarf trees were planted in the orchard in 1946, 
The following observations and comments are offered in response 
to inquiries regarding our experiences with this type of tree, 
pa 
Rootatock 
Standard Rootstook 
Malling XII 
Malling XVI 
Malling I 
preteen Malling II 
Malling XIII 
Malling VII 
a oes eo 
10 
a Malling IX 
ETE EEE OCR CRERRR CREE SEENNES TUELETE SET ENRR EERRGRT  ENEENEEEESS EET SRS EESTI RRIRRERRE Os  EOR Ee 
(1) Scion Variety — On any given rootstock weaker-growing varieties 
such ag Rome and Golden Delicious make a smaller tree at any age than 
vigorous varieties such as Spy and Summer Ranbo, Ve have a small block 
of trees on IX planted in the Spring of 1949, The Golden Delicious are 
now only 5 to 6 ft, tall and have borne apples every year since plant-— 
ing. On the other hand the Redsumbo (Double-Red Summer Rambo) are 
nearly 10 ft, tall, Even though the IX rootstock has greatly dwarfed 
beth varieties and encouraged early—oearing,uhe vigorous scion-variety 
is larger at 6 yrs, than the earlier-bearing, slower—growing one, In 
cur plantings, we have tried to natch the variety to the stock to pro- 
dfice the desired size tree, 
(2) Soil ~ Any rootstovk will grow a smaller tree on light, sandy soil 
than on heavy, rich soils, Thus, Vif rectstock on rich soil may pro 
duce approximately the same size tree as 1, II, or XIII on lighter, 
poorer soil; 
