In vitro germination and growth of Vriesea incurvata Gaudich. (Bromeliaceae)

Abstract

Vriesea incurvata in the natural environment shows some difficulties associated to the low seed germination capacity. Aiming to provide basis for the seedlings production, the results of the seeds germination percentage and the initial growth of V. incurvata seedlings in vitro conditions in different culture media, are reported. Completely randomized design was comprised of eight treatments and eight replications. The treatments were as culture media: MS (Murashige & Skoog); MS½; KC (Knudson); KC½; MS + activated carbon (AC); MS½ + AC; KC + AC; and KC½ + AC. The germination percentage was calculated from the division between the number of seeds with primary root extrusion by the total number of sowed seeds. The initial growth was evaluated considering the values of total fresh biomass, percentage of normal and dead seedlings, number and roots length, stem length, number of leaves and percentage of chlorotic, necrotic and dead leaves, respectively. All the cultures promoted high germination percentages (> 82.8%). In MS and MS½ medium, it was evidenced the highest percentage of normal seedlings, the highest values of fresh biomass production, stem growth and number of leaves. KC and KC½ medium also promoted highest percentages of normal seedlings and low percentages of necrotic and dead leaves. The addition of activated carbon in the culture media was unfavorable to promote the growth of seedlings. This suggests that MS and MS½ are the most suitable culture media for the production of Vriesea incurvata in vitro.

Impact of saline solution on growth and photosystem II during in vitro cultivation of Bromelia antiacantha (Bromeliaceae)

“…ex Schult. f. (Faria et al 2018), Vriesea incurvata Gaudich (Sasamori et al 2016(Sasamori et al , 2018Pulido-Rueda et al 2018), and Aechmea blanchetiana (Tavares et al 2015(Tavares et al , 2017Martins et al 2018Martins et al , 2019Rosa et al 2018), among others. In particular, Mercier & Yoshida (1998) studied the activity of bromelain in the leaf tissues of B. antiacantha plants grown in vitro, but they did analyze the physiological quality of the plants.…”

Ornamental and landscape potential of a bromeliad native to the Cerrado

“…For decades, bromeliads have been appreciated as ornamental plants, especially in the USA, Europe, and Australia, where their growth is responsible by the important economy, absorbing, directly or indirectly, a large amount of labor (Paula and Silva, 2004). In this scenario, it is noteworthy that bromeliads have dozens of new species inserted in the ornamental plant trade annually (Pulido et al, 2018;Negrelle and Anacleto, 2019;Anacleto et al, 2019). In general, any plant can have ornamental use, if it fits the environment to be decorated and that meets the purpose of use, either in internal or external gardens (Tombolato, 2008).…”