Table 3.
Variation in pollen production in two successive years
| 1998 | 1999 | |||||||||
| Tree no. | Microsporophyll length | Pollen grains/microsporophyll | Pollen grains/strobilus (×103) | Pollen grains/branch (×106) | Pollen grains/tree (×106) | Microsporophylls length | Pollen grains/microsporophyll | Pollen grains/strobilus (×103) | Pollen grains/branch (×106) | Pollen grains/tree (×106) |
| Khirsu (warmer location; 1800 m asl) | ||||||||||
| 1 | 3·0 ± 0·17 | 6954·6 ± 632·1 | 3124·7 | 176·2 | 4·2 | 3·4 ± 0·13 | 8517·2 ± 553·6 | 3497·2 | 235·7 | 6·76 |
| 2 | 3·8 ± 0·21 | 9148·2 ± 754·3 | 3682·2 | 385·2 | 12·7 | 3·8 ± 0·17 | 8905·3 ± 698·4 | 4206·9 | 599·9 | 4·20 |
| 3 | 4·1 ± 0·23 | 11 540·5 ± 863·4 | 4442·3 | 588·2 | 17·6 | 4·2 ± 0·19 | 12 245·4 ± 1045·6 | 5108·8 | 563·0 | 6·76 |
| 4 | 4·4 ± 0·27 | 15 978·8 ± 1215·3 | 3985·1 | 688·6 | 17·2 | Flowering totally absent | ||||
| 5 | 3·1 ± 0·15 | 7953·6 ± 625·2 | 4024·5 | 130·5 | 4·8 | Flowering totally absent | ||||
| Teka (cooler location; 1900 m asl) | ||||||||||
| 1 | 4·0 ± 0·30 | 20 450·8 ± 2968·9 | 10065·9 | 448·9 | 9·4 | 3·5 ± 0·21 | 13 425·5 ± 1312·2 | 3419·5 | 119·0 | 1·58 |
| 2 | 3·1 ± 0·38 | 8752·0 ± 1074·2 | 3523·6 | 474·3 | 22·3 | Flowering totally absent | ||||
| 3 | 4·1 ± 0·32 | 12 537·2 ± 755·3 | 3688·4 | 607·9 | 12·2 | Flowering totally absent | ||||
| 4 | 3·8 ± 0·17 | 7719·2 ± 788·4 | 3737·6 | 142·8 | 7·3 | Flowering totally absent | ||||
| 5 | 4·1 ± 0·27 | 15 443·2 ± 1536·1 | 5891·6 | 969·8 | 22·3 | 3·1 ± 0·19 | 10 533·2 ± 1029·3 | 4252·3 | 666·3 | 6·66 |