Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings
Association between auxins and plant growth-promoting bacteria can stimulate root growth and development of fruit crop nursery plants, and can be a promising biological alternative to increase the rooting of cuttings. The objective of this study was to assess the viability of producing ‘Po...
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| Format: | Article |
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MDPI AG
2019-10-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/5/4/68 |
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| author | Renata Koyama Walter Aparecido Ribeiro Júnior Douglas Mariani Zeffa Ricardo Tadeu Faria Henrique Mitsuharu Saito Leandro Simões Azeredo Gonçalves Sergio Ruffo Roberto |
| author_facet | Renata Koyama Walter Aparecido Ribeiro Júnior Douglas Mariani Zeffa Ricardo Tadeu Faria Henrique Mitsuharu Saito Leandro Simões Azeredo Gonçalves Sergio Ruffo Roberto |
| author_sort | Renata Koyama |
| collection | DOAJ |
| description | Association between auxins and plant growth-promoting bacteria can stimulate root growth and development of fruit crop nursery plants, and can be a promising biological alternative to increase the rooting of cuttings. The objective of this study was to assess the viability of producing ‘Powderblue’ blueberry nursery plants from cuttings using different doses of indolebutyric acid (IBA) in association with <i>Azospirillum brasilense</i>. The following treatments were tested: 0 (control); 500 mg L<sup>−1</sup> of IBA; 1000 mg L<sup>−1</sup> of IBA; <i>A. brasilense</i>; 500 mg L<sup>−1</sup> of IBA + <i>A. brasilense</i>; and 1000 mg L<sup>−1</sup> of IBA + <i>A. brasilense</i>. The experimental design was completely randomized, with six treatments and four replicates, and each plot (box) consisted of 10 cuttings. The boxes were arranged in a mist chamber with an intermittent regimen controlled by a timer and solenoid valve. After 90 days, the following variables were assessed: rooted cuttings; survival of cuttings; foliar retention; sprouting; cuttings with callus; root dry mass per cutting; number of roots per cutting; and root length. It was observed that the application of IBA with the <i>A. brasilense</i> rhizobacteria increased the number of roots of ‘Powderblue’ blueberry cuttings, while the treatments with IBA alone and IBA 1000 mg L<sup>−1</sup> + <i>A. brasilense</i> increased the root length of cuttings. However, treatments with IBA and <i>A. brasilense</i> had no impact on % rooted cuttings and % survival of cuttings. |
| first_indexed | 2024-12-13T03:00:03Z |
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| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-12-13T03:00:03Z |
| publishDate | 2019-10-01 |
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| spelling | doaj.art-21e3c64c319640da82474d380c6eb7432022-12-22T00:01:50ZengMDPI AGHorticulturae2311-75242019-10-01546810.3390/horticulturae5040068horticulturae5040068Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry CuttingsRenata Koyama0Walter Aparecido Ribeiro Júnior1Douglas Mariani Zeffa2Ricardo Tadeu Faria3Henrique Mitsuharu Saito4Leandro Simões Azeredo Gonçalves5Sergio Ruffo Roberto6Agricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAgricultural Research Center, Londrina State University, Celso Garcia Cid Road, km 380, P.O. Box 10.011, Londrina ZIP 86057-970, BrazilAssociation between auxins and plant growth-promoting bacteria can stimulate root growth and development of fruit crop nursery plants, and can be a promising biological alternative to increase the rooting of cuttings. The objective of this study was to assess the viability of producing ‘Powderblue’ blueberry nursery plants from cuttings using different doses of indolebutyric acid (IBA) in association with <i>Azospirillum brasilense</i>. The following treatments were tested: 0 (control); 500 mg L<sup>−1</sup> of IBA; 1000 mg L<sup>−1</sup> of IBA; <i>A. brasilense</i>; 500 mg L<sup>−1</sup> of IBA + <i>A. brasilense</i>; and 1000 mg L<sup>−1</sup> of IBA + <i>A. brasilense</i>. The experimental design was completely randomized, with six treatments and four replicates, and each plot (box) consisted of 10 cuttings. The boxes were arranged in a mist chamber with an intermittent regimen controlled by a timer and solenoid valve. After 90 days, the following variables were assessed: rooted cuttings; survival of cuttings; foliar retention; sprouting; cuttings with callus; root dry mass per cutting; number of roots per cutting; and root length. It was observed that the application of IBA with the <i>A. brasilense</i> rhizobacteria increased the number of roots of ‘Powderblue’ blueberry cuttings, while the treatments with IBA alone and IBA 1000 mg L<sup>−1</sup> + <i>A. brasilense</i> increased the root length of cuttings. However, treatments with IBA and <i>A. brasilense</i> had no impact on % rooted cuttings and % survival of cuttings.https://www.mdpi.com/2311-7524/5/4/68auxinrhizobacteriarootingvaccinium spp. |
| spellingShingle | Renata Koyama Walter Aparecido Ribeiro Júnior Douglas Mariani Zeffa Ricardo Tadeu Faria Henrique Mitsuharu Saito Leandro Simões Azeredo Gonçalves Sergio Ruffo Roberto Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings Horticulturae auxin rhizobacteria rooting vaccinium spp. |
| title | Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings |
| title_full | Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings |
| title_fullStr | Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings |
| title_full_unstemmed | Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings |
| title_short | Association of Indolebutyric Acid with <i>Azospirillum brasilense</i> in the Rooting of Herbaceous Blueberry Cuttings |
| title_sort | association of indolebutyric acid with i azospirillum brasilense i in the rooting of herbaceous blueberry cuttings |
| topic | auxin rhizobacteria rooting vaccinium spp. |
| url | https://www.mdpi.com/2311-7524/5/4/68 |
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