Coordination between plant and apex development in Hordeum vulgare ssp distichum
Coordination between plant and apex development in Hordeum vulgare ssp distichum
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DOI：
10.1016/j.crvi.2010.01.003
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发表时间：
2010-05-01
影响因子：
2
通讯作者：
Masoni, Alessandro
中科院分区：
文献类型：
--
作者：
Arduini, Iduna;Ercoli, Laura;Masoni, Alessandro
谷类的发育尺度分别描述顶端和植株形态。为了连接内部和外部发展的关键步骤，在三个品种的大麦。在秋季和春季播种的双列种中，我们记录了植株、叶片和顶端阶段，遵循Zadoks、Haun、Banerjee和Wienhues的鳞片，原基数目，秆和穗长，以及最终的叶片和小穗数。原基的起始与叶片的出现是协调的，并且生产原基的起始的相对速率是恒定的。最大数量的原基之前，第一个节点成为可检测的，但发展完成，只有那些开始前小花分化和节间膨胀开始。第一个小穗开始时，第三叶尖变得可见，最后一个时，植物在假茎直立阶段和五片叶还没有出现。(C)2010年由Elsevier Masson SAS代表Academie des sciences出版。
Developmental scales for cereals describe apex and plant morphology separately. In order to link crucial steps of internal and external development, in three varieties of Hordeum vulgare spp. distichum L, sown in autumn and in spring, we recorded plant, leaf and apex stage, following the scales of Zadoks, Haun, and Banerjee and Wienhues, the number of primordia, culm and spike length, and the final number of leaves and spikelets. Primordia initiation was coordinated with leaf appearance and the relative rate was constant for the initiation of productive primordia. The maximum number of primordia was achieved just before the first node became detectable, but development was completed only by those initiated before floret differentiation and internode distension started. The first spikelet was initiated when the third leaf tip became visible, and the last one when plants were at the pseudo stem erection stage and five leaves had still to appear. (C) 2010 Published by Elsevier Masson SAS on behalf of Academie des sciences.