Stenting is a commercial propagation method for roses that combines grafting and cutting in one action and the resulting plantlet is named ‘stentling’. Several physiological and biochemical factors can significantly influence graft union healing and adventitious root formation. The effect of rootstock and its cutting-prepared region have not been well studied for successful stenting. We provide a comprehensive overview of the physiological and biochemical aspects of the stenting process, utilizing rootstock positions as the source of variation among treatments. Morphophysiological and biochemical assays were performed to evaluate the effect of three different stem parts (bottom, middle, and top) of ‘Natal Briar’ as rootstock on graft union healing and adventitious root formation of the rose stentlings. When the rootstock originating from the bottom and middle positions improved the physiological, biochemical, and morphological responses of the stentling, significantly. In this regard, the improved biochemical properties, including total soluble sugars, total phenolic and flavonoid contents, phenylalanine ammonia-lyase, peroxidase and lignin content seem to play a special role in the success of grafting and subsequently the adventitious root formation. Assessing morphophysiological and biochemical parameters paves the way for a better understanding of the mechanism of successful stenting.

中文翻译：

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蔷薇成功支架植入的生理和生化方面：砧木的作用


支架种植是一种商业玫瑰繁殖方法，将嫁接和切割结合在一个动作中，所得的植株被称为“支架种植”。一些生理和生化因素可以显着影响移植物愈合和不定根形成。砧木及其切割准备区域对于成功支架置入的影响尚未得到充分研究。我们利用砧木位置作为治疗之间变异的来源，对支架置入过程的生理和生化方面进行全面概述。通过形态生理学和生化测定来评估‘Natal Briar’三个不同茎部分（底部、中部和顶部）作为砧木对玫瑰支架嫁接愈合和不定根形成的影响。当砧木来自底部和中部位置时，支架的生理生化和形态反应显着改善。在这方面，改善的生化特性，包括总可溶性糖、总酚和类黄酮含量、苯丙氨酸解氨酶、过氧化物酶和木质素含量似乎在嫁接的成功以及随后的不定根形成中发挥着特殊作用。评估形态生理学和生化参数为更好地理解成功支架植入的机制铺平了道路。