油菜冠层三维结构解析及光能高效利用生理机制研究

How does the rape leaf photosynthetic rate affect the rape canopy light utilization? The existing researches still cannot identify the physiology mechanism very well. Aiming at this problem, this study makes canopy 3D structure analysis and photosynthetic physiological activity positioning as the breakthrough point, focuses selecting varieties with similar canopy 3D structure but different photosynthetic physiological activity as material, uses knowledge about various subjects such as plant physiology, 3D graphics and computer models, carry out research on rape high light use efficiency physiological mechanism. Then it can provide a more accurate analysis of effects and interaction of 3D structure and biological activity, to interpret physiological mechanism roundly about rape high light use efficiency, and to provide theoretical basis and technical guidance for rape ideal plant type breeding and high yield cultivation. Many studies are focused on the physiological mechanism of high light use efficiency respectively from canopy structure and photosynthesis in cereals. However, there are large differences between rape and cereals in canopy structure and high light use efficiency physiological mechanism. In recent years, crop 3D morphology modeling researches developed rapidly. However, few researches study on influence of photosynthetic activity in different parts based on canopy 3D structure. This study can make up for the lack of previous researches about rape canopy 3D structure and light utilization physiological mechanism, and explore to open up a new theory or new ways.

油菜叶片光合速率是如何对油菜冠层光能利用产生影响的？现有的研究还不能完全明确其中的生理机制。针对这个问题，本研究以冠层三维结构解析和光合生理活性定位为切入点，重点筛选冠层三维结构相似而光合生理活性有差异的成对品种为材料，综合运用植物生理学、三维图形学和计算机模型等学科的知识，开展油菜光能高效利用生理机制的研究，从而更精确地分析三维结构和生理活性的影响及其交互作用，更全面地阐释油菜光能高效利用生理机制，为油菜理想株型育种和高产高效栽培提供理论依据和技术指导。目前有很多研究从禾本科作物冠层结构和光合作用方面探索了光能高效利用的生理机制，然而油菜冠层结构及相关生理机制与禾本科作物差异较大。近年来关于作物三维形态建模的研究发展迅速，然而很少有研究基于冠层三维结构来分析不同部位光合生理活性的影响。本研究可以弥补前人对油菜冠层三维结构和光能利用生理机制研究的不足，探索开辟光能高效利用的新途径、新理论。