Arthrocereus glaziovii is a native Brazilian cactus, restricted to rocky outcrops. The species is at risk of extinction and has high potential for restoration of degraded areas of the Rupestrian Phytophysiognomy. The objective of this study was to establish a micropropagation protocol for A. glaziovii, testing seed exposure in times to active chlorine, in vitro multiplication under different carbon sources, growing medium, explant sectioning positions, and the presence or absence of light. The experiments were conducted in the inoculation and multiplication phases. The asepsis presented the best results at 5 minutes of exposure to chlorine. Regarding the carbon source, the presence of sucrose favored the aerial part growth of the plants. The median and upper sectioning positions favored the emergence of roots and shoots, while the lower position favored only shoot formation, and the presence of light resulted in the best responses. The acclimatization methodology adopted was excellent, with 96% plant survival.
Leite et al. (Tue,) studied this question.