ACIDO INDOL BUTIRICO PDF

Indolebutyric acid ≥% (T); CAS Number: ; EC Number: 5; Synonym: 4-(3-Indolyl)butanoic acid, 4-(3-Indolyl)butyric acid, IBA; Linear.

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IBA is also available as a saltwhich is soluble in water.

The high survival In addition, it presents toxicity to humans, causing skin irritation and eye and respiratory infection, if handled improperly Sigma-Aldrich, It presents acute toxicity when ingested and cause irritation of skin, eyes and the respiratory tract if inhaled Sigma-Aldrich, Vegetative propagation has been an excellent method to support forest species genetic improvement, allowing the reproduction of genetically superior trees with high physiological maturation Pijut et al.

Retrieved from ” https: Energization of transport processes in plants. This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

With the exception of autumn, cuttings from year-old stock plants showed high mortality rates.

The experiments were carried out in a completely randomized design, with 2x5x4 factorial arrangement 2 ages of stock plants, 5 IBA concentrations and 4 seasons of the yearwith 4 replications of 20 cuttings per experimental unit. We aimed to study the adventitious rooting of apical scido cuttings of Brazilian red-cloak and sanchezia plants in response to the application of different concentrations of IBA and HA.

The decline in rooting capacity in woody species is often linked to the effects of maturation Ferreira et al. As no effect of HA has been significant, HA should not be used in the Brazilian red-cloak to replace auxins. This page was last edited on 29 Octoberat Thus, cuttings collected from younger stock plants have greater vigor and greater easiness to root, justifying the best results observed in the present work, for cuttings collected from years-old stock plants.

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As the chronological age of the stock plants increases, the cuttings from the branches of the year tend to be less responsive to the application of IBA Table 1while those from younger plants show a greater responsiveness in root length when submitted to its application, which may, to a certain extent, be related to the absence of cofactors, or even the presence of inhibitors butirifo rooting in adult material Pijut et al.

The cuttings were disinfested with 0. We concluded that IBA, in the abovementioned concentrations, increased adventitious rooting in cuttings of both the Brazilian red-cloak and sanchezia, while optimal doses of HA solutions are very likely to improve adventitious rooting in sanchezia, but not in the Brazilian red-cloak. From Wikipedia, the free encyclopedia. The highest percentage of rooting was observed in the fall, with application of mg L -1 of Inddol For the concentrations of 0 and mg L -1winter was the best collection period 9.

Ácido indol-3-acético

Bold letters for ages, small letters for treatments with IBA within each season and capital letters between the seasons in each treatment with IBA. Benth—a multipurpose leguminous tree and assessment of genetic fidelity of micropropagated plants using molecular markers”.

In connection with cytokinins like kinetinauxins like IBA can be used to cause the formation of masses of undifferentiated cells called callus. In plants of the Brazilian red-cloak, maximum physical efficiency for RDM wcido achieved at IBA is a plant regulator with typical auxin hormonal action.

Gladiolus development in response to bulb treatment with different concentrations of humic acids.

The role of endogenous carbohydrates and seasonal variation in rooting ability of cuttings of an easy and a hard to root olive cultivars Olea europaea L. ABSTRACT Plant regulators, as well as bioactive fractions of the organic matter, can accelerate the development and increase the efficiency of adventitious rooting in ornamental plants.

According to the result for the species IBA was shown to produce a higher yield of roots compared to the other auxins. Root growth of Arabidopsis thaliana treated with humic acids isolated from typical soils of Rio de Janeiro state, Brazil. Subsequently, the treatment of approximately 1 cm of the bases of the cuttings with IBA was carried out for 10 seconds, according to the following treatments T: Enraizamento de Miniestacas de erva-mate sob diferentes ambientes.

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Ácido indolacético – Wikipedia, a enciclopedia libre

These results support the hypothesis that callus formation is detrimental to the rooting of yerba mate cuttings, indicating that the rhizogenesis is direct, without the dependence of the previous formation of callus. It is possible to observe in this study the viability to rescue genetic material of high chronological age, representing an advance in the propagation of yerba mate adult plants.

Soil Biology and Biochemistry Revista Brasileira de Fruticultura. Summer showed the highest percentage of live cuttings, regardless of IBA concentrations, reaching The low germination of Ilex paraguariensis seeds and their long reproductive cycle make cuttings propagation a good alternative for its reproduction all year round, enabling to obtain genetically superior clones.

In the case of a subtropical species Santin et al. It is commercially available in liquid and solid forms and it is used to stimulate adventitious root development, since it favors the formation of meristematic tissue and cell elongation Hartmann et al.

Indolebutyric acid – Wikipedia

Global Science and Technology4: HA are a renewable natural resource which can be extracted from different urban wastes such as garbage and sewage sludge Canellas et al. June 18, ; Accepted: We also adjusted regression equations using the means of the characteristics studied and IBA and HA concentrations. IBA, on its turn, resulted in significant increases in root growth, corroborating Ferriani et al.