Table 1. Sampling sites, samples from each site representing a natural population.
| No. | Sampling sites | Site code | I (°) | II (°) | III (°) | IV (°) | V (°) | VI (mm) | VII (hr) | Sample size |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Zhuguang Farm, Shikang, Hepu, Beihai, Guangxi, China | SK | 109.22 | 21.68 | 16.9 | 28.0 | 1.0 | 1,554 | 1,288 | 5 |
| 2 | Longmenjiang, Lianzhou, Hepu, Beihai, Guangxi, China | HP | 109.23 | 21.67 | 16.1 | 40.6 | −0.1 | 1,600 | 1,286 | 5 |
| 3 | Renli, Naliang, Dongxing, Fangchenggang, Guangxi, China | RL | 107.88 | 21.63 | 16.0 | 40.0 | −18.0 | 1,624 | 1,286 | 10 |
| 4 | Chongfeng, Jiangping, Dongxing, Fangchenggang, Guangxi, China | CF | 108.74 | 21.38 | 15.6 | 41.0 | −13.2 | 1,781 | 1,277 | 5 |
| 5 | Shishui, Shapo, Bobai, Yulin, Guangxi, China | BB | 109.88 | 21.83 | 16.4 | 40.8 | −12.7 | 1,477 | 1,275 | 5 |
| 6 | Guigang Agricultural Science and Technology Research Institute, Guangxi, China | GG | 109.55 | 23.12 | 16.3 | 33.0 | −3.0 | 1,536 | 1,277 | 5 |
| 7 | Dongzhuang, Huajiang, Xing’an, Guilin, Guangxi, China | XA | 110.41 | 25.70 | 15.9 | 38.0 | −7.4 | 1,630 | 1,643 | 5 |
| 8 | Xiaocheng, Shuangjiang, Lipu, Guilin, Guangxi, China | LP | 110.40 | 24.57 | 15.0 | 42.7 | −6.8 | 1,500 | 2,113 | 6 |
| 9 | Yimiaotang, Etang, Pinggui, Hezhou, Guangxi, China | HZ | 111.59 | 24.32 | 16.0 | 41.5 | −8.2 | 1,430 | 1,784 | 13 |
| 10 | Tiantang, Changtang, Qingxiu, Guangxi, China | CT | 108.69 | 22.81 | 18.0 | 40.0 | −5.0 | 1,800 | 1,668 | 5 |
| 11 | Gucheng, Mingliang, Shanglin, Nanning, Guangxi, China | SL | 108.58 | 23.37 | 18.5 | 31.0 | 8.0 | 1,756 | 1,741 | 5 |
| 12 | Xialong’an, Fucheng, Wuming, Nanning, Guangxi, China | WM | 108.21 | 23.41 | 18.0 | 40.0 | −5.0 | 1,600 | 1,900 | 5 |
| 13 | Hecun, Laituan, Jiangzhou, Chongzuo, Guangxi, China | CZ | 107.49 | 22.50 | 17.1 | 38.7 | −6.9 | 1,775 | 1,739 | 5 |
| 14 | Wanzhang Golden Camellia Planting Base, Dianbai, Maoming, Guangdong, China | WZ | 111.19 | 21.80 | 21.7 | 39.6 | −2.4 | 1,713 | 1,917 | 5 |
Note:
I, longitude; II, latitude; III, annual average temperature; IV, annual maximum temperature; V, annual minimum temperature; VI, annual rainfall; VII, annual average sunshine.