Rice is one of the most important crops worldwide, whose yield is vital to human nutrition in the context of a rapidly growing world population. Plant architecture significantly affects grain yield, which is to a large extent determined by tiller angle and tiller number. Tiller angle is the angle between the primary tiller and the main culm. Its regulation is complex and is influenced by multiple environmental and genetic factors. This review provides an overview of the regulation of tiller angle in rice, with particular focus on the roles of the growth environment and method of cultivation; phytohormones such as auxin, gibberellins, and strigolactones; gravity; and genes related to the control of tiller angle. The major research foci and the outlook for research into the regulation of tiller angle in rice are discussed.

稻米是世界上最重要的农作物之一，在世界人口迅速增长的背景下，稻米的产量对人类营养至关重要。植物结构显着影响谷物产量，这在很大程度上取决于分till角度和分till数。分iller角是初级分er与主茎之间的夹角。其调控是复杂的，并受多种环境和遗传因素的影响。这篇综述概述了水稻分till角度的调节，特别着眼于生长环境的作用和栽培方法；植物激素，如生长素，赤霉素和内酯。重力; 和与控制分er角有关的基因。论述了水稻分till角度调控的主要研究方向和研究前景。