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首页> 外文会议>The 5th China-Japan-Korea Grassland Conference: Knowledge Innovation of Grassland Science and Sustainalbe Development of Grassland Agriculture >Reproductive pattern and offspring traits in Chtoris virgata populations under atmospheric nitrogen deposition
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Reproductive pattern and offspring traits in Chtoris virgata populations under atmospheric nitrogen deposition

机译：大气氮沉降下虎纹小population种群的生殖方式和后代性状

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Atmospheric nitrogen (N) deposition is an important component in the global N cycle and affects plant growth and reproduction strategy.In addition, reproduction strategy is one of the important factors in plant life history.Therefore, how variation in atmospheric nitrogen deposition affects the reproduction strategy and seed traits on a population of Chtoris virgata was investigated.We evaluated the allometric relationship between seed size and seed number, as well as the effects of N addition on seed traits.The results indicated that N addition had a significant and negative effect at low and high N supply.Seed number and seed weight behaved similar and were significantly lower when no N addition.The greatest gains in seed yield were higher under N addition.Seed weight reached the maximum values at low and high nitrogen levels, while seed N concentrations increased with N levels.Seed vigour was higher at control.Our findings had important implications for understanding the mechanisms by which N deposition influences plant reproductive strategy and offspring characters.
机译：大气氮沉降是全球氮循环的重要组成部分，影响植物的生长和繁殖策略，此外，繁殖策略是植物生命史上的重要因素之一，因此，大气氮沉降的变化如何影响繁殖研究了虎尾草种群的遗传策略和种子性状。评价了种子大小与种子数的异位关系，以及氮素添加对种子性状的影响。氮素供应量低和高。种子数量和种子重量表现相似，不添加氮素时种子数量显着降低。氮素添加量最大的种子产量增加。低氮和高氮水平下种子重量达到最大值。浓度随氮水平增加而增加。种子活力在控制下更高。我们的发现对理解其机理具有重要意义。氮的沉积会影响植物的繁殖策略和后代特性。

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