Lesmes-Vesga Ricardo A, Cano Liliana M, Ritenour Mark A, Sarkhosh Ali, Chaparro José X, Rossi Lorenzo
Horticultural Sciences Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA.
Plant Pathology Department, Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, FL 34945, USA.
Plants (Basel). 2022 Aug 9;11(16):2081. doi: 10.3390/plants11162081.
Rootstocks are fundamental for peach production, and their architectural root traits determine their performance. Root-system architecture (RSA) analysis is one of the key factors involved in rootstock selection. However, there are few RSA studies on spp., mostly due to the tedious and time-consuming labor of measuring below-ground roots. A root-phenotyping experiment was developed to analyze the RSA of seedlings from 'Okinawa' and 'Guardian'™ peach rootstocks. The seedlings were established in rhizoboxes and their root systems scanned and architecturally analyzed. The root-system depth:width ratio (D:W) throughout the experiment, as well as the root morphological parameters, the depth rooting parameters, and the root angular spread were estimated. The 'Okinawa' exhibited greater root morphological traits, as well as the other parameters, confirming the relevance of the spatial disposition and growth pattern of the root system.
砧木是桃树生产的基础，其根系结构特征决定了它们的表现。根系结构（RSA）分析是砧木选择的关键因素之一。然而，针对[具体品种]的RSA研究很少，主要是因为测量地下根系繁琐且耗时。开展了一项根系表型分析实验，以分析‘冲绳’和‘守护者’™桃砧木幼苗的RSA。将幼苗种植在根箱中，对其根系进行扫描并进行结构分析。估算了整个实验过程中的根系深度与宽度比（D:W），以及根系形态参数、深根参数和根角扩展。‘冲绳’表现出更优的根系形态特征以及其他参数，证实了根系空间布局和生长模式的相关性。
