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首页> 外文期刊>Genetic Resources and Crop Evolution >Variation in baobab (Adansonia digitata L.) leaf morphology and its relation to drought tolerance
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Variation in baobab (Adansonia digitata L.) leaf morphology and its relation to drought tolerance

机译：猴面包树叶片形态变化及其与耐旱性的关系

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The baobab tree (Adansonia digitata L.) is a valued savannah tree. Although variation in fruit characteristics of this tree have been studied, no studies to our knowledge have been carried out on variation of leaf morphology which can be linked to drought adaptation mechanisms. Accessions of baobab from different ecosystems in Benin were characterised for leaf size and thickness, stomata size and density on the abaxial surface of leaves. Significant variation was found in leaf size and stomata characteristics. Trees from northern study sites had higher stomata density and smaller guard cell length than those from southern study sites. The results show that pruning has a significant effect on leaf size, but not on stomatal characteristics. Trees from northern study sites showed more xerophytic characteristics than those from the south. It seems that genetic and physiological effects may play a role in baobab drought adaptation. Keywords Adansonia digitata - Drought - Leaf morphology - Stomatal density - Stomatal size
机译：猴面包树（Adansonia digitata L.）是一棵有价值的大草原树。尽管已经研究了该树果实特性的变化，但尚未对叶形态变化与干旱适应机制相关的知识进行任何研究。来自贝宁不同生态系统的猴面包树种的叶片大小和厚度，叶片背面的气孔大小和密度都有特征。在叶片大小和气孔特征上发现了显着变化。北部研究地点的树木比南部研究地点的树木具有更高的气孔密度和较小的保护细胞长度。结果表明，修剪对叶的大小有显着影响，但对气孔特征没有影响。北部研究地点的树木比南部的树木显示出更多的旱生特征。遗传和生理效应似乎在猴面包树干旱适应中起作用。关键词刺五加-干旱-叶片形态-气孔密度-气孔大小

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