Table 8 Biometric attributes of 15–20 years old age class farm grown teak (Boundary plantations) in three agroclimatic zones of Tamil Nadu.

Zone	High Rainfall Zone				Southern Zone				Cauvery Delta Zone
Tree No	Age (years)	DBH (m)	Tree Height (m)	Tree Volume (m³)	Age (years)	DBH (m)	Tree Height (m)	Tree Volume (m³)	Age (years)	DBH (m)	Tree Height (m)	Tree Volume (m³)
1	20	0.330	12.75	1.087	20	0.253	12.50	0.629	20	0.314	13.00	1.004
2	20	0.315	12.50	0.975	20	0.269	13.00	0.739	20	0.283	12.00	0.757
3	20	0.298	11.50	0.800	20	0.274	13.00	0.766	20	0.288	12.00	0.783
4	20	0.360	13.00	1.322	20	0.248	12.50	0.606	20	0.293	12.50	0.842
5	20	0.322	12.00	0.975	20	0.275	13.00	0.774	20	0.299	12.75	0.897
6	20	0.346	13.00	1.219	20	0.277	13.00	0.783	20	0.283	12.00	0.757
7	20	0.314	11.50	0.888	20	0.252	12.50	0.621	20	0.269	11.50	0.654
8	20	0.293	11.00	0.741	20	0.250	12.50	0.613	20	0.296	12.50	0.861
9	20	0.323	12.50	1.025	20	0.280	13.00	0.802	20	0.306	13.00	0.954
10	20	0.313	11.50	0.885	20	0.287	13.00	0.838	20	0.271	11.50	0.662
11	20	0.344	12.00	1.114	18	0.285	12.00	0.765	18	0.275	11.50	0.685
12	18	0.303	11.75	0.844	18	0.293	12.25	0.826	18	0.268	11.00	0.618
13	18	0.314	12.00	0.927	18	0.288	12.00	0.783	18	0.288	12.00	0.783
14	18	0.328	12.50	1.056	18	0.290	12.00	0.791	18	0.256	11.00	0.568
15	18	0.322	12.50	1.015	18	0.279	11.75	0.716	18	0.280	11.75	0.725
16	18	0.274	11.50	0.677	18	0.287	12.00	0.774	18	0.256	10.50	0.542
17	18	0.366	13.00	1.369	16	0.193	11.25	0.328	18	0.293	12.25	0.826
18	18	0.277	11.50	0.693	16	0.197	11.50	0.352	18	0.269	11.00	0.625
19	18	0.248	11.00	0.533	16	0.194	11.25	0.333	18	0.291	12.00	0.800
20	18	0.229	10.75	0.444	16	0.180	11.00	0.280	18	0.295	12.25	0.835
Mean		0.311	11.99	0.930	Mean	0.258	12.25	0.656	Mean	0.284	11.90	0.759
SEd		0.008	0.158	0.054	SEd	0.008	0.147	0.041	SEd	0.003	0.154	0.028
CD (0.05)		0.072	1.480	0.506	CD (0.05)	0.077	1.384	0.388	CD(0.05)	0.033	1.449	0.262

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