GROWTH OF MATURE CLUMPS OT} 
TABLE 5.—Number of shoots produced and yield of mature living canes 
from 8 clumps of Baumbusa spinosa at Division of Investigation, Bureau 
of Forestry, Los Banos, Laguna, Philippine Islands. Data from report 
by Ranger Oro. 
——— ——— —— —— —— 23 
| New shoots. 
Total 


number I Percent- Percent- 
ofmature Total Total Total age liv- age yield. 
canes. number number’ number ane 
of shoots. of dead. of living. 
39 78 58 20 25.5 | 51 
24 29 24 5 17.5 21 
18 20 10 10 50 55.5 
21 30 22 8 26.5 38 
8 12 9 3 ra | 37.5 
13 34 25 9 26.5) 69 
31 35 19 16 45.5 51.5 
| 49 128 104 24 19 49 
JaAit £2) Roy 2 eee ere ee et eh a a RE 28.5 46.5 

Observations were also made on 5 clumps of Bambusa vulgaris. 
The results are given in Table 6. Thirty-eight per cent of the 
young shoots reached maturity, which is 6 per cent of the original 
number in the clump. Bambusa vulgaris produced fewer canes 
than Bambusa spinosa, but showed the same general phenomena 
which have just been described for Bambusa spinosa. 
TABLE 6.—Number of shoots produced and yield of mature living canes 
from 5 clumps of Bambusa vulgaris at Division of Investigation, Bureau 
of Forestry, Los Banos, Laguna, Philippine Islands. Data from report 
by Ranger Oro. 
| 
New shoots. 
Total 


| number | Sage eo | re ae Rereenty | Percent- 
ofmature Total | Total Total | = ze. ase yield. 
canes. | number | number number 
lof shoots., of dead. of living. 
aor 
48 48 34 14 29 29} 
9 24 13 11 46 | 122 | 
' 30 39 30 9 23 30 
22 20 12 8 40 | 36 | 
44 52 25 | 27 52 | 61 

A Verne a dS dei 38 | 56 | 
Gigantochloa levis also produces a very large number of new 
shoots, many of which fail to mature. Records obtained from 
5 clumps of Gigantochloa levis are given in Table 7. It will be 
seen from this table that 31 per cent of the new shoots reached 
maturity while the yield of the new culms is 54 per cent of 
the number originally in the clump. 
