Table 2. 1996 blossom, yield and tree growth measurements from the NC-140 'Royal Gala' dwarfing rootstock trial planted in 1994 at the Horticultural Experiment Station, Simcoe, Ontario. Trees are trained to the slender spindle orchard system. Rootstocks are ranked in order of increasing vigour (tcsa).z




Rootstock


Number
of flower cluster/
tree

No.
of
fruit/
tree
Total yield per tree
(kg)
1996

Avg.
fruit
wt
(g)

Cum.
Yield
(kg)


Cum.
Yield
efficiency
(kg.cm-2)

Avg.
shoot
lengt h
(cm)

1996 Autumn
TCSA
(cm2)
TCSA
relative
to
M.9
EMLA
Incremental increase in
TCSA
'95-'96
(cm2)

Tree
height
1996
(cm)

Tree
spread
1996
(cm)


Height:
spread
ratio
M.27 EMLA 93.3-13.21.741312.80.7322.7-3.9-0.51-1.6-179-121-1.49+
P.22152.7 23.82.93122431.00+21.4-4.4-0.57-1.2-187-137-1.38
P.16159.524.33.491424.50.90+25.7-5.0-0.65-1.9-208-139-1.50+
B.491132.1-16.32.331483.50.6729.5-5.3-0.69-2.5204-132-1.57+
V.3162.210.21.36-1282.4 -0.4229.5-6.0-0.78-2.8203-153-1.35
M.9 NAKB135.614.61.981432.60.4336.16.60.863.22291721.35
B.469211.538.7+4.16+108-5.70.81+24.7-7.10.922.7221-161-1.38
M.9 Pajam 1163.613.81.831272.80.3433.77.71.003.82421911.28
M.9 EMLA192.019.22.721374.20.5735.27.71.003.32471851.34
P.2209.525.33.541414.60.6328.4-8.41.093.22411891.33
O.3291.9+43.0+6.17+1447.7+0.82+34.09.4+1.22+4.1260223+1.17-
M.9 Nicolai218.919.83.121555.20.5137.910.2+1.32+4.5+247209+1.19-
B.9209.037.1+5.08+1387.0+0.7432.410.2+1.32+4.5+2632051.29
M.9 Pajam 2212.434.1+5.37+159+7.6+0.6839.9+11.3+1.47+5.3+262217+1.22
Mark327.6+36.2+5.35+1506.6+0.6032.011.4+1.48+4.6+263224+1.18-
M.26 EMLA227.217.42.391353.40.28-35.212.2+1.58+5.5+290+224+1.29
V.1158.019.02.341293.10.24-47.113.1+1.70+6.3+289+243+1.19-
G.65183.58.5-1.32-152
1.3-0.07-58.4+19.4+2.52+11.0+340+280+1.22
Significancez*************************** ************
LSD(P=5%)57.09.71.30201.60.24 5.91.60.210.621220.13
z Parameters significantly greater (+) or significantly less (-) than M.9 EMLA using LSD (P=0.05)
y ns, *, **, ***, indicates not significant and significant difference at P=0.05, P=0.10, and P=0.01, respectively