Clonal propagation of Eucalyptus urophylla under effect of Cyperus rotundus extract and indole-3-acetic acid

Abstract

Cyperus rotondus tubers possess substances with allelopathic qualities. Some of these substances can act as synergists of plant hormones and be used for root induction in cuttings. This study aimed to shed light on the development and rooting of Eucalyptus urophylla cuttings treated with C. rotondus (nutgrass) tuber extract and IAA (indole-3-acetic acid). The experiments were conducted using a completely randomized design (0; 25; 50; 75 and 100% nutgrass extract and 0; 50; 250; 500; 750 and 1000 mg L-1 of IAA), with four repetitions per treatment and four cuttings per plot. Plantlet height, stem width and root length were measured. The greatest width and height values were recorded for the control (0% nutgrass extract and 0 mg L-1 of IAA), indicating that these substances did not contribute to the development of these variables. However, treatments of nutgrass extract up to 50% were associated with greater root length. C. rotundus extract concentrations of 53% can be used to improve root development in E. urophylla cuttings, and contribute to the production of higher quality plantlets.

Chemical structures, biological activities, and medicinal potentials of amine compounds detected from Aloe species

“…In other studies, indole-3-acetic acid (Figure 4; Compound 31) was detected in A. vera (Nejatzadeh-Barandozi, 2013) and A ferox (Loots et al, 2007). This indole-3-acetic acid is one of the auxin compounds (Santos et al, 2021). However, the works of literature that reported the presence of auxins from Aloe species have not mentioned indole-3-acetic acid presence as well, and the literature that reported indole-3-acetic acid has not explained it as one of auxin hormones.…”

Produção de mudas de aceroleira com miniestacas tratadas com ácido indolbutírico e extrato de tiririca

“…Estudos têm demonstrado a eficácia do ácido indol-3-butírico (AIB), um regulador de crescimento vegetal comumente utilizado na horticultura [14], no enraizamento de estacas convencionais de aceroleira [2]. Contudo, além do AIB, pesquisas têm apontado que substâncias presentes nos tubérculos de tiririca (Cyperus rotundus L.) podem auxiliar no enraizamento de estacas de diversas espécies [1,[15][16][17][18].…”