Clonal Rootstock Potential of Morus spp. Genotypes and Their Biochemical Influence on Graft Compatibility in Morus nigra L.

Authors : Duygu Özelçi

Pages : 352-362

Doi:10.33202/comuagri.1819775

View : 67 | Download : 125

Publication Date : 2025-12-24

Article Type : Research Paper

Abstract :Selecting an appropriate rootstock in fruit trees is crucial for both productivity and grafting success. In black mulberry (Morus nigra L.) propagation, grafting is widely used; however, graft incompatibility may occur following grafting or during later stages of plant development. In this study, 56 different Morus spp. genotypes were propagated via cuttings, and 21 genotypes with rooting success above 70% were grafted onto the Ekşi Kara cultivar. Biochemical analyses revealed that genotypes with high grafting success had higher total sugars, starch, and total carbohydrates. In addition, increased peroxidase and ascorbate peroxidase enzyme activities, as well as higher total phenolic compound levels, were observed. The He Ya Bai genotype stood out for its high total carbohydrates and total phenolic compound levels, while Yediveren 24-08 and Ayaş Beyazı genotypes showed elevated peroxidase and ascorbate peroxidase activities. These findings indicate that grafting success is not solely determined by anatomical compatibility, but is also influenced by the physiological and biochemical status of both rootstock and scion. This study provides a scientific basis for identifying suitable clonal rootstocks for M. nigra and offers strategic guidance to enhance grafting success.
Keywords : Peroksidaz, Karbonhidrat metabolizması, Toplam fenolik madde, Aşı uyumazlığı

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