enraizamento de estacas lenhosas de pereira tratadas com aib e mantidas em ambiente de estufa tipo b.o.d. e de telado rooting of hardwood cuttings of pear tree with iba under b.o.d. chamber and greenhouse environment

Clicks: 257
ID: 150434
2007
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #52 of 146 articles by views in technocom

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 146 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Pesquisou-se o enraizamento da pereira em ambiente controlado de estufa tipo B.O.D. e em telado simples. Utilizou-se a cultivar híbrida 'Limeira', destinada exclusivamente para fins culinários e para porta-enxerto. Estacas lenhosas sem folhas, medindo 25 cm de comprimento, foram tratadas com ácido indolbutírico (AIB) nas concentrações de 0; 2.000; 4.000 e 6.000 mg.L-1 por 10 segundos. Como substrato, utilizou-se da mistura de vermiculita e areia grossa (2:1 v/v), sendo a mesma umedecida com meio contendo solução salina MS e sacarose 1%. As estacas permaneceram por 42 dias dentro de estufas tipo B.O.D. (temperatura de 25ºC, umidade relativa do ar de 90% e fotoperíodo de 8 horas) e de telado com irrigação por microaspersão, sem controle ambiental. Em ambiente controlado de estufa, as estacas não-tratadas com AIB iniciaram intensa brotação das gemas e formação de calo após sete dias do plantio. Já em ambiente de telado, essas estacas demoraram 21 dias para o início de brotação das gemas, mostrando menor desenvolvimento de calo. Nas estacas tratadas com AIB, os calos surgiram nas regiões dos cortes após o terceiro dia de incubação na estufa B.O.D. As raízes desenvolveram-se a partir dos tecidos da base e dos calos, tornando-se mais nítidas a partir de 14 e 28 dias, respectivamente, para os ambientes de estufa e de telado. Após 42 dias, o melhor percentual de enraizamento (83%) foi verificado no tratamento com AIB a 2.000 mg.L-1, em ambiente de estufa B.O.D. O emprego dessa estufa, com temperatura, luz e umidade relativa controladas, mostrou-se viável em relação ao telado, no processo de enraizamento das estacas lenhosas da pereira 'Limeira', podendo favorecer o sistema de propagação vegetativa da pereira e encurtar o período da formação de mudas.
The rooting of cuttings pear under controlled environment of chamber (B.O.D. type) and greenhouse was searched. Hardwood cuttings of 'Limeira' pear, without leaves, measuring 25 cm of length, were treated with 0, 2000, 4000 and 6000 mg.L-1 of indolbutyric acid (IBA), for 10 seconds. The vermiculite and sand mixture substrate (2:1 v/v) was used and humidified with half contends MS saline solution and sucrose 1%. The cutting stayed per 42 days inside both B.O.D. chamber (temperature of 25ºC, relative humidity of 90% and photoperiod of 8 hours) and greenhouse with irrigation for aspersion, without environmental control. In B.O.D chamber, the cuttings not treated with IBA began an intense sprouting of the buds and callus formation after seven days of planting. On the other hand in greenhouse atmosphere, those cuttings delayed 21 days for the beginning of the bud sprouting, showing smaller callus development. In the cuttings treated with IBA, the callus appeared in the areas of the cuts after the third day of incubation in the stove B.O.D. The roots were developed starting from the tissues of the base and of the callus, becoming clearer from the 14th and 28th day, respectively, for the stove atmosphere and of greenhouse. After 42 days, the best rooting percentage (83%) was verified in the treatment with IBA at 2000 mg.L-1, in B.O.D chamber atmosphere. The utilization of B.O.D chamber, with controlled temperature, light and relative humidity, showed to be more advantageous than the process of greenhouse in the rooting of woody cutting of the 'Limeira' pear tree, that could favor the system of vegetative propagation of the pear tree and to shorten the period of formation of young plants.
Reference Key
barbosa2007revistaenraizamento Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Wilson Barbosa;Rafael Pio;Nelson Pires Feldberg;Edvan Alves Chagas;Renato Ferraz de Arruda Veiga
Journal technocom
Year 2007
DOI
10.1590/S0100-29452007000300033
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452007000300033
Keywords
vegetative propagation

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.