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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However, plant response to HA application is not uniform and varies with the raw material which these compounds where extracted from and their concentration, and plant genotype Baldotto et al. We evaluated rooting in the Brazilian red-cloak Megaskepasma erythrochlamys and sanchezia Sanchezia nobilis cuttings in response to application of indole-butyric acid IBA and humic acids HA.
Adventitious rooting on the Brazilian red-cloak and sanchezia after application of indole-butyric and humic acids. 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.
The process of callus to root formation is called indirect organogenesis whereas if roots are formed from the explant directly it is called direct organogenesis. This result may be a consequence of the branches physiological condition at the time of collection, because it is during this period that plants begin to caido reserves in the stem, being readily available to the cuttings during the periods of greatest growth, decreasing, consequently the butorico Oliveira et al.
The plants respond progressively to the stimulus to an optimal level of auxin, from which, the increase in concentration becomes inhibitory or even phytotoxic Pop et al. Micropropagation of plants is the process of using small samples of plants called explants and causing them to undergo growth of differentiated or undifferentiated cells.
Our results indicate that the application of IBA and HA in apical cuttings of the Brazilian red-cloak and sanchezia, in the concentrations evaluated, accelerates plantlet production. It is also toxic to the environment, particularly aquatic environments Sigma-Aldrich, Several authors recommend the use of juvenile materials for the propagation of woody species, justifying, above all, the improvements related to the rooting and vigor of clonal plants Wendling et al.
According to the result for the species IBA was shown to produce a higher yield of roots compared to the other auxins. In addition, autumn was one of the seasons that presented the highest rooting percentages of the youngest stock plants. 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.
Teores de carboidratos em estacas lenhosas de mirtileiro. This compound had been thought to be strictly synthetic ; however, it was reported that the compound was isolated from leaves and seeds of maize and other species. The cuttings were disinfested with 0. Promotion of adventitious root formation of difficult-to-root hardwood tree species. It should be emphasized that the high survival observed in the younger stock plants, could reflect in a higher percentage of rooting, if exposed to a longer period of permanence in greenhouse.
This results in a gap to be filled related to the regenerative and rescue capacity between adult and juvenile materials, especially to reestablish ontogenetic high age genotypes Wendling et al. The same tables contain the average contrasts for qualitative data.
Bold letters for ages, small letters for treatments with IBA within each season and capital letters between the seasons in each treatment with IBA.
Gladiolus development in response to bulb treatment with different concentrations of humic acids.
Nevertheless, IBA is an expensive chemical reagent produced by specialized companies. Plantas ornamentais no Brasil: Revista Brasileira de Plantas Medicinais.
Thus, we evaluated the influence of stock plants age, plant growth regulator indolebutyric acid IBA application and plant material collection in different seasons related to rooting of cuttings. In the case of a subtropical species Santin et al. 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.
For stock plants older than 80 years, the concentrations of 0,and mg L -1 applied in spring presented the best results for this variable Table 1. Forty-five days after, the following characteristics were assessed: Enraizamento de estacas de erva-mate Ilex paraguariensis St. Other names 1 H -indolebutanoic acid indolebutyric acid 3-indolebutyric acid indolebutyric acid IBA. Retrieved from ” https: Ilex paraguariensis; Resgate vegetativo; Silvicultura clonal.
However, IBA is potentially harmful to health.
In connection with cytokinins like kinetinauxins like IBA can be used to cause the formation of masses of undifferentiated cells called callus. The highest percentages were verified in winter, at concentrations wcido 0 and mg L -1 IBA Table 1. Once the regression equations for plant growth characteristics as function of IBA and HA concentrations were obtained Table 3we calculated the concentrations of maximum physical efficiency for RDM for the Buirico red-cloak and sanchezia Table 4.
Services on Demand Journal. IBA is a plant regulator with typical auxin hormonal action. In addition, the metabolic and physiological activities in plants have their regulation, among other factors, through the temperature variation in the environment Floss,and can act directly on the adventitious root emission Brondani et al. Such mechanisms may explain the growth in shoot fresh and dry matter we observed in cuttings of the Brazilian red-cloak.
HA mode of action was not investigated in this work. Revista Brasileira de Fruticultura.