Table 1 Geographical and climatic conditions of the test sites
From: Growth adaptability and foreign gene stability of TaLEA transgenic Populus simonii × nigra
Test site | Longitude | Latitude | Altitude (m) | Annual average temperature (°C) | Annual precipitation (mm) | Soil type | pH |
|---|---|---|---|---|---|---|---|
Cuohai | 124°25′E | 47°55’N | 340 | 3.4 | 450.0 | Dark brown forest soil | 6.8 |
Daqing | 124°25′E | 45°51’N | 146 | 4.2 | 427. 5 | Chestnut soil | 8.4 |
Lanxi | 125°54’E | 46°25’N | 170 | 2.4 | 504.0 | Chernozem | 7.4 |