82 
THE CROWN-GALL AND HAIRY-ROOT OF THE APPLE TREE, 
TABLE VIII.—Results on the health of trees of using seedlings diseased with crown-gall 
in making root grafts. 
Trees with smooth-root grafts. 
Year. 
Number. 
CRS Gece eos ee eee 125 
SOCON Gud 25 2A. See Se ene ene ana eee 245 
dD ah To etmek pea Sane ea Ne Maes re Pes ST ee 99 
TOtal ie Sen EE ace ae een aie: 469 
Galled. 
Per cent. 
18.4 
3.7 | 
2.0 | 
7.3 | 
Trees with galled-root grafts. 
| Hairy. 
| Per cent. 
Number. 
118 
165 
107 
390 
Galled. 
Per cent. 
27.1 
20.1 
13.1 
20. 2 
Hairy. 
Per cent. 
10.2 
NST 
5.6 
TaBLE 1X.—Comparison of the results on the health of trees from the use of scions from 
young and old trees in making root grafts. 
| 
_ Trees with scions from young _‘ Trees with scions from old 
trees. trees. 
Year. 
| psi | Galled. Hairy. | ee Galled. | Hairy. 
| | | 
| Per cent. | Per cent. Per cent. | Per cent. 
KURT H aw, Suomen eA. ST 2 22h EATS 6.1 215 he! 10.7 
NGO GASe See See ie En Se ne ee eee Dee aes 297 | 6.1 19.7 382 6.3 SH 
TOO Fe se A ee et res ee Ee 207 | 5th) 15.0 193 1.0 10.4 
Totallsse a ee ee eee 733 | . 8.0 14.0 790 5.6 10.9 
TABLE X.—Comparison of the results on the health of trees of root grafts on seedling roots 
grown from French and from American seed. 
Trees from French seed. 
Year. . 
Sates | Galled. | Hairy. 
| Per cent. | Per cent. 
NODS C6 as SSS eens ce Sere ee 491 46.8 Oe, 
DOO Gee Ses ee ek pee Se ere ae 913 | LS y 6.8 
SOQ T oaks ose Belk a ee IS TR ys See en ne 398 | D7, (S334 
NG GaSe hey eee ee ee 1,802 19.1 5.8 
Trees from American seed. 
_ Number 
| 4 dug. 
Galled. 
Per cent. 
Hairy. 
Per cent. 
OO ym 
is 
~] 
= 
TABLE XI.—Results on the health of trees of using seedlings from localities where nursery 
- stock has been grown for many years. 
Trees from an old locality. 
Year. 
Number 
dug. 
1905s Sas: siete ee 937 
VOQG ee eee Sea eee ee Be eter ie a 1,816 
19075 Se Sess eee 738 
Total ne 2. See ee 3,491 
Galled. 
Per cent. 
Trees from a new locality. 
Hairy. meee 
Per cent. 
3h 5 491 
Da 913 
4.1 398 
4.7 1,802 
Galled. 
Per cent. 
Hairy. 
Per cent. 
ya | 
6.8 
7.3 
5.8 
ae 
