| 第一作者： | Dan-Dan Zhao |
|---|---|
| 英文第一作者： | Dan-Dan Zhao |
| 联系作者： | Hong-Yuan Ma |
| 英文联系作者： | Hong-Yuan Ma |
| 发表年度： | 2021 |
| 卷： | 9 |
| 摘要： | The reproductive characteristics of plants are likely affected by climate change e.g.,
changes in precipitation patterns and nitrogen deposition, but few studies have
examined the effects of these ecological agents of selection on the seed yield and
germination characteristics of perennial grasses. Here, we conducted a multiple-year
pot experiment with Leymus chinensis, a common perennial grass in the eastern region of
the Eurasian steppe zone, which was grown under three water treatments with and
without nitrogen addition. The seed yield of L. chinensis increased with precipitation and
was highest (7.0 g/pot) under 747 mm of precipitation with nitrogen addition (10.5 g/m2 ).
Seed yield was positively correlated with heading number, tiller number, and grain number
per spike, and the heading number was a critical factor affecting seed yield. Seed
germination percentage and the time to obtain 50% germination were affected by
environmental cues experienced by the mother plants. |
| 刊物名称： | Frontiers in Environment Science |
| 参与作者： |
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