Seed disinfection and culture media in the in vitro germination and growth of seedlings of Eysenhardtia polystachya (Ortega)
DOI:
https://doi.org/10.29312/remexca.v16i5.3744Keywords:
disinfection method, kidneywood, MS medium, WPM mediumAbstract
Eysenhardtia polystachya is a plant prized for the strength of its wood and medicinal use. It is propagated by seed; nevertheless, low germination and attack by insects and fungi in natural conditions limit its availability, which makes it highly vulnerable. In vitro culture allows the number of individuals to increase rapidly. The objective was to evaluate the effect of mineral salts of Murashige and Skoog and Woody Plant Medium culture media, both in concentration of 50, 75 and 100% (macro and micronutrients), in combination with two methods of seed disinfection. E. polystachya seeds collected in November 2021 in Tlayacapan Morelos were used; these were disinfected with silver nanoparticles, applied once or twice, and then seeded in vitro. The experimental design was completely randomized with factorial arrangement of treatments, with 10 replications of five seeds. Double application of silver nanoparticles generated 98.3% of aseptic seeds, compared to applying them once (86.7%). Plant height was also 34.5% higher. The MS medium generated better germination in the three concentrations (90 to 99%). Root length and dry matter were more abundant in the MS medium at 50%. It was concluded that it is convenient to use silver nanoparticles twice to disinfect E. polystachya seeds and to use the 50% MS culture medium for germination and seedling growth.
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