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Synflorescence regeneration after cutting in Solidago × niederederi ( Asteraceae ), a hybrid between invasive S. canadensis and native S . virgaurea
Biologia ( IF 1.5 ) Pub Date : 2020-11-02 , DOI: 10.2478/s11756-020-00632-6
Artur Pliszko , Justyna Pażucha , Artur Górecki

Solidago ×niederederi, a natural hybrid between invasive S. canadensis and native S. virgaurea, is considered as naturalized alien taxon in Europe. In this study, we conducted a field experiment on the regeneration ability of S. ×niederederi after cutting off its synflorescences (panicles with capitula). The regeneration of synflorescences occurred in 79.6% of the examined shoots (ramets) of the hybrid. After regeneration shoots were significantly shorter and formed shorter, narrower and less branched synflorescences. Moreover, the number of capitula was significantly lower after regeneration as well as number of disc flowers and pollen viability. The obtained results suggest that the hybrid has a high ability of synflorescence regeneration after cutting and one-time cutting at high level during flowering is not effective method to control the hybrid in the wild.



中文翻译:

入侵的加拿大一株S. canadensis与本地S.的杂交种Solidago×niederederi(Asteraceae)切花后的花期再生。维古雷亚

一枝× niederederi,侵入性之间的自然混合加拿大一枝黄花和本地小号virgaurea被认为是欧洲的归化外国人分类群。在这项研究中,我们对S的再生能力进行了现场试验。× niederederi切断其花序后(圆锥形的圆锥花序)。在杂种的79.6%的受试芽(分株)中发生了花序的再生。再生后,芽明显较短,并形成较短,较窄和较少分支的花序。此外,再生后的头皮数量以及盘花和花粉活力的数量显着降低。所得结果表明,该杂种具有较高的切花后再生能力,在开花期高水平一次切花不是控制野生杂种的有效方法。

更新日期:2020-11-02
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