Collection period and indolebutyric acid on the rooting of adult pecan plant cuttings

The objective of this work was to evaluate the effect of the collection period and of the exogenous application of indolebutyric acid (IBA) on the rooting of cuttings from adult pecan (Carya illinoinensis) plants. The experiment was carried out in a greenhouse with intermittent mist irrigation, from December 2017 to October 2018. The experimental design was completely randomized, in a 4x5 factorial arrangement, with four collection periods (spring, summer, autumn, and winter) and five concentrations of IBA (0, 2,000, 4,000, 6,000, and 8,000 mg L^-1). For the cuttings collected during summer and autumn, there was a linear relationship between rooting and the increase of the IBA concentration. The best results for rooting, callus formation, mean number of roots, mean root length, and root dry and fresh mass are obtained for the cuttings collected during summer, with the application of 8,000 mg L^-1 IBA on the base of each cutting, under a mist irrigation system. The rooting of cuttings from adult pecan plants with the application of IBA is possible, being an alternative propagation method for the species.

Index terms:
Carya illinoinensis; callus; clonal propagation

Authorship

Márcio Alberto Hilgert ^**Corresponding author: marcioahilgert@yahoo.com.br

Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Avenida Bento Gonçalves, no 7.712, Agronomia, CEP 91540-000 Porto Alegre, RS, Brazil. E-mail: marcioahilgert@yahoo.com.br, desa_larissa@hotmail.com, pvdsouza@ufrgs.brUniversidade Federal do Rio Grande do SulBrazilPorto Alegre, RS, BrazilUniversidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Avenida Bento Gonçalves, no 7.712, Agronomia, CEP 91540-000 Porto Alegre, RS, Brazil. E-mail: marcioahilgert@yahoo.com.br, desa_larissa@hotmail.com, pvdsouza@ufrgs.br

https://orcid.org/0000-0002-2983-7758

Larissa Campos de Sá

https://orcid.org/0000-0001-6882-3298

Marília Lazarotto

Universidade Federal de Pelotas, Rua Benjamin Constant, no 989, Porto, CEP 96010-020 Pelotas, RS, Brazil. E-mail: marilia.lazarotto@ufpel.edu.brUniversidade Federal de PelotasBrazilPelotas, RS, BrazilUniversidade Federal de Pelotas, Rua Benjamin Constant, no 989, Porto, CEP 96010-020 Pelotas, RS, Brazil. E-mail: marilia.lazarotto@ufpel.edu.br

https://orcid.org/0000-0003-0621-6120

Paulo Vitor Dutra de Souza

https://orcid.org/0000-0003-2900-3638

Carlos Roberto Martins

Embrapa Clima Temperado, Rodovia BR-392, Km 78, 9º Distrito, Monte Bonito, Caixa Postal 403, CEP 96010-971 Pelotas, RS, Brazil. E-mail: carlos.r.martins@embrapa.brEmbrapa Clima TemperadoBrazilPelotas, RS, BrazilEmbrapa Clima Temperado, Rodovia BR-392, Km 78, 9º Distrito, Monte Bonito, Caixa Postal 403, CEP 96010-971 Pelotas, RS, Brazil. E-mail: carlos.r.martins@embrapa.br

https://orcid.org/0000-0001-8833-1629

*Corresponding author: marcioahilgert@yahoo.com.br

SCIMAGO INSTITUTIONS RANKINGS

Figures | Tables

Figures (5)
Tables (2)

Thumbnail

Figure 1.
Average temperature and relative humidity inside the greenhouse with intermittent mist spraying from December 2017 to October 2018, in the municipality of Porto Alegre, in state of Rio Grande do Sul, Brazil.

Thumbnail

Figure 2
Callus formation (A) and rooting (B) of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent mist irrigation, in the municipality of Porto Alegre, in the state of Rio Grande Sul, Brazil. *Significant at 1% probability.

Thumbnail

Figure 3
Average number of roots (A) and average root length (B) of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent mist irrigation, in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil. *Significant at 1% probability.

Thumbnail

Figure 4
Rooting of cuttings of pecan (Carya illinoinensis) adult plants during summer after the application of 2,000 mg L^-1 (A), 4,000 mg L^-1 (B), 6,000 mg L^-1 (C), and 8,000 mg L^-1 (D) indolebutyric acid (IBA)

Thumbnail

Figure 5
Average fresh (A) and dry (B) mass of roots of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent spray irrigation, in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil. *Significant at 1% probability.

Thumbnail

Table 1.
Approximate age of cuttings (AC) after sprouting (days after drastic pruning) and dates of the installation of the experiment and of the evaluation of the cuttings collected from 38-year-old pecan (Carya illinoinensis) adult plants at different seasons of the year and treated with indolebutyric acid.

Thumbnail

Table 2.
Survival, leaf retention, and sprouting of pecan (Carya illinoinensis) cuttings from adult plants, 60 days after being cut, collected at different seasons of the year in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil⁽¹⁾.

Figure 1. Average temperature and relative humidity inside the greenhouse with intermittent mist spraying from December 2017 to October 2018, in the municipality of Porto Alegre, in state of Rio Grande do Sul, Brazil.

Figure 2 Callus formation (A) and rooting (B) of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent mist irrigation, in the municipality of Porto Alegre, in the state of Rio Grande Sul, Brazil. *Significant at 1% probability.

Figure 3 Average number of roots (A) and average root length (B) of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent mist irrigation, in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil. *Significant at 1% probability.

Figure 4 Rooting of cuttings of pecan (Carya illinoinensis) adult plants during summer after the application of 2,000 mg L^-1 (A), 4,000 mg L^-1 (B), 6,000 mg L^-1 (C), and 8,000 mg L^-1 (D) indolebutyric acid (IBA)

Figure 5 Average fresh (A) and dry (B) mass of roots of pecan (Carya illinoinensis) cuttings from adult plants subjected to different indolebutyric acid (IBA) concentrations and collected at different seasons of the year, when kept in a greenhouse with intermittent spray irrigation, in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil. *Significant at 1% probability.

Table 1. Approximate age of cuttings (AC) after sprouting (days after drastic pruning) and dates of the installation of the experiment and of the evaluation of the cuttings collected from 38-year-old pecan (Carya illinoinensis) adult plants at different seasons of the year and treated with indolebutyric acid.

Variable	Collection period / Type of cuttings
Variable	Spring / Herbaceous	Summer / Semi woody	Autumn / Semi woody	Winter / Woody
AC (days)	40	90	140	270
Installation date	12/13/2017	02/01/2018	03/23/2018	08/01/2018
Evaluation date	02/11/2018	04/02/2018	05/22/2018	10/02/2018

Table 2. Survival, leaf retention, and sprouting of pecan (Carya illinoinensis) cuttings from adult plants, 60 days after being cut, collected at different seasons of the year in the municipality of Porto Alegre, in the state of Rio Grande do Sul, Brazil⁽¹⁾.

Collection period	Survival (%)	Leaf retention (%)	Sprouting (%)
Spring	18.5c	16.5b	16.0c
Summer	73.5b	61.5a	47.0b
Autumn	66.5b	57.5a	40.5b
Winter	95.0a	-	85.0a
CV (%)	11.25	7.29	11.48

⁽¹⁾Means followed by equal letters, in the columns, do not differ by Tukey’s test, at 5% probability. CV, coefficient of variation.

How to cite

copy

Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira Caixa Postal 040315, 70770-901 Brasília DF Brazil, Tel. +55 61 3448-1813, Fax +55 61 3340-5483 - Brasília - DF - Brazil
E-mail: pab@embrapa.br

Acompanhe os números deste periódico no seu leitor de RSS

Versão para download de PDF

PDF

Inglês

Versões e tradução automática

Versão original do texto

English

Tradução automática

Google Translator
Microsoft Translator

Como citar

RIS

BIBTEX

Outros formatos de citação e exportação:

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
E-mail: scielo@scielo.org

Leia a Declaração de Acesso Aberto

Métricas

Collection period and indolebutyric acid on the rooting of adult pecan plant cuttings

PlumX

Mensagem

[1] *Corresponding author: marcioahilgert@yahoo.com.br