346. BOTANICAL GAZETTE [MAY 
hardy buds to the same conditions is more tardy and much less 
pronounced. In March when the buds begin to swell the moisture 
content increases very rapidly, as is shown in table VI. 
Table VI shows clearly the slower movement of water in the 
hardy form, for while the moisture content in the foliage buds of the 
TABLE VI 
INCREASE IN WATER CONTENT WHEN BUDS ARE RESUMING GROWTH ACTIVITY IN SPRING 
FOLIAGE BUDS FRUIT BUDS 
VARIETY 
March 5 March 31 Increase Marchs | March 31 Increase 
eee 28.87 47.28 18.41 39.78 65.58 25.80 
Tonka. ee 30.22 46.27 16.05 40.46 65.37 24.91 
Assiniboine........ 36.87 49.70 3.83 46.16 56.52 10.36 
TABLE Vil 
SUMMARY OF DATA ON MOISTURE CONTENT OF LEAF AND FRUIT BUDS FOR NOVEMBER 8 
ARCH 31 
TONKA STELLA ASSINIBOINE 
Date 
Leaf bud | Fruit bud | Leaf bud | Fruit bud | Leaf bud | Fruit bud 
November 8...... 40.57 50.64 42.34 50.01 43-15 49.38 
November 19...... 3 50. 51 9.08 50.38 38.12 46.51 
Decembef . x. 04... 33-94 43-93 34.68 ae ee 38.30 45-49 
December 26....... 35.2 50.7 37.6 49.3 7 6.8 
January. 6...) 5..: 34-4 47-5 36.0 50.3 39.03 46.6 
jonuaty 16; 2c. 37.83 44.41 39.23 45.98 39-61 47.36 
january 330005 os. 33.5% 39.16 TT 44.34 39.95 47-31 
Peper Oe 46.55(?)| 34.29 AG GA Te, a 47-43 
February 13:...... a3. 74 42. 34.14 47.17 38.64 
February 21....... 33-82 43.24 30.25 At 41.20 46.83 
March 6:25:25. 2. 30.22 40.46 28.87 39.78 36.87 46.16 
Marsch t4/.. 56 350%; 30.83 45.51 34.83 40.7 9-37 48.12 
APR tho, 36.20 49.43 39.71 50.03 39-03 48.04 
March 3.23. 46.27 65.37 47.28 65.58 40.70 56.52 
semihardy varieties increased 18.41 per cent and 16.05 per cent, 
that of the hardy Assiniboine increased only 3.83 per cent. In 
the fruit buds of Stella and Tonka the increase was 25.8 per cent 
and 24.91 per cent, while that of Assiniboine was only 10.36 per 
cent. It will be seen that marked and well defined changes take 
place in the water content of buds under different sets of conditions. 
