Modeling branching in cereals.
Modeling branching in cereals.
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DOI：
10.3389/fpls.2013.00399
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发表时间：
2013-10-10
影响因子：
5.6
通讯作者：
Vos J
中科院分区：
文献类型：
--
作者：
Evers JB;Vos J
谷物和草的结构发展适应环境条件和可用资源。主要的适应性反应是不同程度的分枝，在谷物中称为分蘖。特别是对于异质植物配置，分蘖的程度每株植物不同。功能结构植物建模（FSPM）是一种建模方法，可以模拟单个植物的结构发育，最终导致冠层水平的紧急行为。本文介绍了FSPM模拟分蘖的原理，采用（1）概率方法，使分蘖动态与实测概率相对应。这种模型特别适合于评估结构变量对系统性能的影响。(II)剂量反应曲线，代表分蘖对环境线索的测量或假设反应。(III)控制分蘖的机械方法包括碳水化合物、激素和养分。分蘖的衰老与分蘖的出现对禾谷类作物的结构发育同样重要。尽管分蘖的出现似乎也适用类似的概念，但对分蘖衰老的研究却很少。
Cereals and grasses adapt their structural development to environmental conditions and the resources available. The primary adaptive response is a variable degree of branching, called tillering in cereals. Especially for heterogeneous plant configurations the degree of tillering varies per plant. Functional–structural plant modeling (FSPM) is a modeling approach allowing simulation of the architectural development of individual plants, culminating in the emergent behavior at the canopy level. This paper introduces the principles of modeling tillering in FSPM, using (I) a probability approach, forcing the dynamics of tillering to correspond to measured probabilities. Such models are particularly suitable to evaluate the effect structural variables on system performance. (II) Dose–response curves, representing a measured or assumed response of tillering to an environmental cue. (III) Mechanistic approaches to tillering including control by carbohydrates, hormones, and nutrients. Tiller senescence is equally important for the structural development of cereals as tiller appearance. Little study has been made of tiller senescence, though similar concepts seem to apply as for tiller appearance.
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