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Voodooshakar Micropropagation of plants is the process of using small samples of plants butiruco explants and causing them to undergo growth of differentiated or undifferentiated cells. The highest percentage of rooting was observed in the fall, with application of mg L -1 of IBA For this, physiologically juvenile shoots are needed Brondani et al.
We aimed to study the adventitious rooting of apical stem cuttings of Brazilian red-cloak and sanchezia bytirico in response to the application of different concentrations of IBA and HA. IBA is also available as a saltwhich is soluble in water. 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.
Miniestaquia de Sapium glandulatum Vell. The objective of the present study was to evaluate the influence of stock plants age, plant growth regulator IBA application and plant material collection in different seasons related to rooting of cuttings. This result is relevant, since the efficiency of the vegetative propagation interferes on the production aciod commercialization of ornamental plants.
The high mortality seems to be related mainly to the harvesting season, since in the autumn the mortality was low for the two plants ages, as well as butirio all the concentrations of IBA used. Revista Brasileira de Zootecnia, The application of plant regulators, mainly of the auxin group, has been cited as favorable to the adventitious rooting process in several species, and although indoleacetic acid IAA is the most abundant auxin in vegetables, the use of indole butyric acid IBA has been shown to be more stable and efficient Ferreira et al.
Little is known about the effects of maturation on the rooting of yerba mate cuttings Wendling et al. Carboxylic acids Indoles Auxins. The same tables contain the average contrasts for qualitative data. Acta Scientiarum Agronomy 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 branches of the year were collected in the morning and packed in polystyrene boxes, moistened and transported to the place of preparation. Ambiente de enraizamento e substratos na miniestaquia de erva-mate. Adventitious rooting in cuttings of croton and hibiscus in response to indolbutyric acid and humic acid. Yerba mate; Vegetative rescue; Clonal forestry. Our results indicate that the application of IBA and HA in apical cuttings of the Brazilian red-cloak and sanchezia, btuirico the concentrations evaluated, accelerates plantlet production.
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 butidico in the Brazilian red-cloak. Bold letters for stock plants ages, small letters for treatments with IBA within each season and capital letters between the seasons in each treatment with IBA. Biomass accumulation in shoots in response to HA application in nursery material had already been reported for other species of agronomic interest such as pineapple Baldotto et al.
Services on Demand Journal. 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. The high survival 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.
The application of IBA increased the number of roots per cutting collected from year-old stock plants in the spring concentrations of and mg L -1 and summer concentrations of and mg L For the concentrations of 0 and mg L -1winter was the best collection period 9.
It is important to note that the loss of vegetative vigor is one of the responses to maturation in forest species Wendling et al. The cuttings were disinfested with 0. However, only in the winter, in cuttings collected from year-old stock plants, a significant difference was observed between IBA concentrations, with the highest concentrations resulting in the lowest rooting percentages Figure 2 and root vigor, denoted by the number of roots and mean length of the three largest roots Table 1.
Promotion of adventitious root formation of difficult-to-root hardwood tree species. Data were used to run an analysis of variance. Callus formation is often used as a first step process in micropropagation where the callus cells are then caused to form other tissues such as roots by exposing them to certain hormones like auxins that produce roots.
Cuttings from years-old stock plants have higher ability to form adventitious roots and the use of IBA did not butirrico rooting potential. How to cite this article. Related Posts.
Alves, E. Clonagem por estaquia de ramos de Dovyalis hebecarpa e Dovyalis hebecarpa x D. Amaral, G. Augusto, C. Revista Brasileira de Fruticultura, v. DOI: Banzatto, D.
Ácido Indolbutírico en la agricultura, función y nombre comercial
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