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首页> 外文期刊>Revista rvore >Seed germination and removal of Michelia champaca L. (Magnoliaceae) in eucalypt stands: the influence of the aril
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Seed germination and removal of Michelia champaca L. (Magnoliaceae) in eucalypt stands: the influence of the aril

机译:种子萌发和去除米塞利亚香雀L.(Magnoliaceae)在桉树展台:Aril的影响

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摘要

We tested the influence of the aril on seed germination in controlled conditions and on the removal of M. champaca seeds in natural environment. Germination assays were kept at 25 ± 2 °C under continuous white light. Removal experiments were carried out in three "old" (39 to 62-years old) and three "new" (15-years old) eucalypt stands in Horto Florestal Navarro de Andrade, Rio Claro, SP. The results show that the aril inhibits the germination and the seeds exhibit a positively photoblastic reaction. We found higher seed removal in old eucalypt stands than the new ones, probably due to the higher density of rodents in the old stands. In the new stands, we found higher seed removal of arillated seeds by ants. Ants are important to remove the aril of seeds dropped by birds, not only enhancing seed germination but also preventing seed predation by rodents.
机译:我们测试了基础对受控条件下种子萌发的影响,并在自然环境中去除了M. Champaca种子。在连续白光下萌发测定在25±2℃下保持。去除实验在三个“旧”(39至62岁)中进行,三个“新”(15岁)(15岁)桉树矗立在霍尔托Florestal Navarro de Andrade,Rio Claro,SP。结果表明,芳烃抑制萌发,种子表现出正面的光细胞反应。我们发现旧桉树山的种子比较高于新的种子,可能是由于旧支架中啮齿动物的密度较高。在新手站中,我们发现蚂蚁更高的种子去除胂种子。蚂蚁很重要,不能除去鸟类掉落的种子,不仅增强了种子萌发,还可以通过啮齿动物预防种子捕食。

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