AUTHOR=Zhang Yufan , Zha Yuanyuan , Jin Xiuliang , Wang Yu , Qiao Han TITLE=Changes in Vertical Phenotypic Traits of Rice (Oryza sativa L.) Response to Water Stress JOURNAL=Frontiers in Plant Science VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2022.942110 DOI=10.3389/fpls.2022.942110 ISSN=1664-462X ABSTRACT=
Drought-rehydration irrigation has an enhancing impact on rice yield, but the current research on its yield-increasing effect is mainly experimental and empirical, lacking mechanism theoretical support. Image-based machine vision is rapidly developing and can estimate crop physical and chemical properties. A novel image processing method has been purposefully carried out to detect the real-time response shape of rice drought-rehydration. By application of this method, two new types of morphological descriptors were proposed to characterize and quantify the vertical phenotypic heterogeneity of rice, in which the relative height of the plant centroid (