RESEARCH ON PROPAGATION OF Sindora tonkinensis A. Chev. Ex K. & S. S. Larsen USING STEM CUTTING METHOD

Abstract

This paper presents the results of an experimental study on the propagation of Sindora tonkinensis A. Chev. Ex K. & S.S. Larsen using the stem cutting method. The research focused on evaluating the effects of plant growth regulators, rooting media, and propagation season on rooting percentage and root system quality. The findings indicate that these factors have a significant impact on root initiation and development in cuttings. Specifically, the most favorable results were achieved with 2,500 ppm IBA, utilizing a 100% sand substrate, and conducting propagation during the April to July period. Under these optimal conditions, the rooting percentage ranged from 31.33% to 36.0%, with an average of 2.66 - 2.68 roots per cutting and a maximum root length of 4.87 - 4.95cm. This study provides a scientific basis for stem cutting propagation guidelines of S. tonkinensis, contributing to the conservation and development of the species' genetic resources.