| 1. | Toadstools were collected from a range of pure stands of betula and pinus both in britain and the u.s.a .
从英国和美国一系列桦木和松树纯林中收集蕈体。 |
| 2. | Differences among pinus sylvestris provenances were observed at one year of age but not at two years .
欧洲赤松种源间的差异仅在一年生时可以看到，两年生时就看不到。 |
| 3. | there was a 2-fold difference in rate of uptake among 26 full-sid families of pinus taeda.
大炬松的26个全同胞家系中，吸收速率的差异可高达两倍。 |
| 4. | Study on the stand density of pinus massoniana
三明地区马尾松人工林经营密度研究 |
| 5. | Nutrition , health function and development of pinus koraiensis pollen
保健功能及开发建议 |
| 6. | Studies on the container cutting plant culture of pinus massoniana
马尾松容器扦插育苗研究 |
| 7. | Pinus plantation of pines new zealand 1987
1987年新西兰的松树人工林 |
