PLANTING OF BAMBOO 267 
site unfavorable. The best material for planting is from stumps, 
which, though harder to prepare, will probably be cheapest in the 
long run. Small twigs are much harder to handle than larger 
pieces. The cutting should be planted oblique to the ground. 
Planting material should be taken from full-sized shoots which 
are not fully mature. Subsequent careful planting of small num- 
bers of these same bamboos in the early part of the rainy 
season gave 100 per cent success. 
During the year 1914, blanks in the plantation were filled. 
Bamboo cuttings, at first, send up thin whiplike shoots and 
it is only after a considerable period that regular culms are 
produced. The number and size of these culms increases yearly 
until mature size is reached. 
In Table 1, from a report by Ranger Oro, is given a summary 
of the height of the culms in December, 1915; from this table, 
it will be seen that in three years some of the culms had reached 
a height of from 8 to 9 meters, but that most of them were 
much smaller than this. 
TABLE 1.—Heights of bamboo clumps at Division of Investigation, Bureau 
of Forestry, Los Banos, Laguna, P. I., December, 1915, three years 
after planting. 
[The figures in the table give the number of clumps.] 

— 
Height in meters. 




Species. | eT | 
Bears aioe 45. | 5-6. 67. 78. 88. 
; leat F el aa 
| Bambuisa spinosa bese ek ee ee ee Le 85 | 59 | 65 | 27 | 16/ 18 | 10 | 10 
iBaAmMDUSAW UIP ATS ~s2— sea> 5a ee oe Nae Ded ie TS |e el 25 eG) ene ye ie! 
Gigantochloatlevisst =~. ee See = tre! =i eee 1 1 | Da re | eae ligeeal 2 

In Table 2, also from a report by Ranger Oro, is given a 
summary of the height of the clumps and the diameter of the 
canes in October, 1917. It will be seen that, five years after 
the original planting, most of the culms were still small, but 
26 clumps of Bambusa spinosa, one of B. vulgaris and one of 
Gigantochloa levis were between 13 and 15 meters in height 
and 7 of Bambusa spinosa over 15 meters in height. Bam- 
busa spinosa had produced 80 culms, 7 centimeters in diameter ; 
71, 8 centimeters; 29, 9 centimeters; and 17, 10 centimeters in 
diameter; while Gigantochloa levis had produced 3 culms, 11 
centimeters in diameter. The culms of Bambusa vulgaris were 
smaller, the largest being 8 centimeters in diameter. These 
figures show that in five years, the planted bamboo had produced 
some usable culms; and, judging from the difference in the 
