Abstract
Nowadays, the predominant technique for the commercial propagation of guava seedlings is through cuttings, using herbaceous cuttings that need a specialized infrastructure with intermittent misting, clean water, exhausters, water filters, and fans. As an alternative to plant propagation by cuttings, this study aimed to evaluate the influence of concentrations of indolebutyric acid (IBA) on the rooting of branches of the guava cv. Paluma by air-layering. The experimental design was in randomized blocks, with four replications and 10 air layers per plot. The treatments consisted of six concentrations of IBA powder mixed with industrial talcum: 0, 1,000, 2,000, 3,000, 4,000, and 5,000 mg.kg-1. Four adult guava parents that were in the off-season period were used. For the preparation of the air layers, the stems were girdled with a 4.0 cm width, using a steel blade, by removing the bark until exposing the cambium region, followed by IBA application and wrapping of the branches with a plastic bag containing moist organic substrate. The following variables were evaluated 120 days after air-layering: percentage of rooted and callused air layers, longest root length, and root dry matter. The analysis of variance indicated no significant differences between the IBA concentrations for all variables, but the rooting percentages were high (68.6 to 92.2%) regardless of the application of the exogenous auxin.
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Claims 3
Claim · model-written summary
Different IBA concentrations (0 to 5,000 mg/kg) produced no significant differences in the percentage of rooted and callused guava air layers.
- Taxon
- guava
Psidium guajavae0 - Material
- Palumae0
- Treatment
- concentrations of indolebutyric acid (IBA)e0
- Outcome
- percentage of rooted and callused air layerse1
- Direction
- no significant differencese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of concentrations of indolebutyric acid (IBA) on the rooting of branches of the guava cv. Paluma by air-layering”
e1“percentage of rooted and callused air layers”
e2“The analysis of variance indicated no significant differences between the IBA concentrations for all variables”
Claim · model-written summary
Different IBA concentrations produced no significant differences in longest root length and root dry matter of guava air layers.
- Taxon
- guavaPsidium guajavae0
- Material
- Palumae0
- Treatment
- concentrations of indolebutyric acid (IBA)e0
- Outcome
- longest root length, and root dry mattere1
- Direction
- no significant differencese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of concentrations of indolebutyric acid (IBA) on the rooting of branches of the guava cv. Paluma by air-layering”
e1“longest root length, and root dry matter”
e2“The analysis of variance indicated no significant differences between the IBA concentrations for all variables”
Claim · model-written summary
Rooting percentages of guava air layers were high, 68.6 to 92.2%, regardless of the application of exogenous auxin.
- Taxon
- guavaPsidium guajavat0
- Outcome
- rooting percentagese3
- Value
- 68.6 to 92.2%e3
- Qualifier
- regardless of the application of the exogenous auxine3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guava”
e3“the rooting percentages were high (68.6 to 92.2%) regardless of the application of the exogenous auxin”
The same questions in other papers
indole-3-butyric acid · growth · Psidium guajava (guava)Results differ
1 paper in the same direction as this paper · 36 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.