THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE

Nascimento, Bruno; Sá, Alexandra Cristina Schatz; Lemos, Lucas Bonez de; Rosa, Diego Pereira da; Pereira, Mariane de Oliveira; Navroski, Márcio Carlos

doi:10.1590/01047760201824032584

Cited by 11 publications

(27 citation statements)

References 13 publications

(22 reference statements)

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“…The application of the complete girdling technique on I. paragauriensis trees to promote epicormic sprouts emission rarely leads to their death (Santin et al, 2008b). The species has a great capacity for healing this type of injury (Nascimento et al, 2018), what was also observed in this experiment.…”

Section: Experiments Of Mother Trees Fertilizationsupporting

confidence: 80%

“…Considering the sprouts vegetative growth from cited works (Lourenço et al, 1997;Santin et al, 2008b;Santin et al, 2013) and comparing to those obtained by Nascimento et al, 2018 and this work (same study area), a significant difference can be noticed. The cited authors bring a higher percentage of sprouts emission, of greater number and length, even for the least representative treatments, when compared to this work.…”

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 62%

“…In this perspective, the gains obtained by the fertilization of the I. paraguariensis mother trees would still be inferior for sprouts length, even considering the best treatments during the second evaluation (480 days). It is possible that the study population is adapted to the adverse environmental conditions, reflecting in a slow vegetative development (Nascimento et al, 2018).…”

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 99%

“…The relationship between nitrogen fertilization, the possible higher hormone production from this nutrient (Kiba et al, 2011;Kojima et al, 2009), the injury caused in the basal part of the trees (Santin et al, 2008b;Hartmann et al, 2011;Nascimento et al, 2018) and the accumulation of hormones -specifically cytokine -may have been the main factor for the production of more vigorous sprouts in I. paraguariensis mother trees.…”

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 99%

“…The ontogenetic age is inversely proportional to the physiological age, which the juvenile characteristics of seedlings are maintained in the dormant buds near the plant base, having a greater vegetative vigour (Hartmann et al, 2011;Santin et al, 2008b;Stuepp et al, 2017). The girdling techniques are effective for the induction of juvenile sprouts of aged I. paraguariensis (Santin et al, 2008b), being an essential technique for the success of its cuttings propagation (Nascimento et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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NITROGENATED FERTILIZATION FAVORS VEGETATIVE RESCUE AND PROPAGATION OF Ilex paraguariensis

Nascimento

Sá

Souza

et al. 2019

CERNE

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HIGHLIGHTS 250 g of N or 500 g of NPK rapidly increase epicormic shoots growth in I. paraguariensis. 250 g of NPK have better results for epicormic shoots growth in long therm. The longer the epicormic shoots stays in the mother tree, the better for cutting. I. paraguariensis cuttings are very sensitive to the loss of moisture ABSTRACT The vegetative growth of plants depends on the nutritional conditions of the soil, mainly in relation to the N element. This element favours the formation of cytokines and auxins, essential hormones for sprouting and rooting, respectively. The objective of this study was to evaluate the influence of nitrogen fertilization of Ilex paraguariensis mother trees on epicormic sprouts emission and rooting of its cuttings. Five treatments of fertilization were applied on the mother trees: control; 250 g of urea (N); 250 g of NPK (5-20-10); 500 g of NPK, and; 250 g of NPK with 30 g of micronutrients. Two evaluations (at 240 and 480 days) were carried out for: trees with sprouts emission (%), average sprouts number and their average length (cm). Sprouts were collected at both vegetative evaluations after the application of the experiment (August 2016) and sectioned into cuttings. Cuttings variables were evaluated: survival (%); rooting (%), callus formation (%) and average root number. The best response to epicormic sprouts emission was obtained with 250 g of NPK at 480 days for trees with sprouts (>75%), sprouts number (4.4) and sprouts length (9.9), but considerable results were also obtained at 240 days with urea. For cuttings, the best results were also obtained from sprouts obtained at 480 days for most treatments (>80% survival and rooting). Nitrogen fertilization is essential for a successful vegetative rescue and propagation by cuttings of I. paraguariensis, and longer periods may be able to boost these results.

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Section: Experiments Of Mother Trees Fertilizationsupporting

confidence: 80%

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 62%

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 99%

Section: Experiments Of Mother Trees Fertilizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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NITROGENATED FERTILIZATION FAVORS VEGETATIVE RESCUE AND PROPAGATION OF Ilex paraguariensis

Nascimento

Sá

Souza

et al. 2019

CERNE

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Plant rejuvenation: from phenotypes to mechanisms

Zhang

Sun

2020

Plant Cell Rep

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Aggressiveness and screening for host responses in yerba mate (Ilex paraguariensis) clones to a wilt disease caused by Ceratocystis fimbriata

et al. 2021

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Ceratocystis wilt of yerba mate (Ilex paraguariensis) caused by the fungus Ceratocystis fimbriata was observed in 2018 in commercial plantations located in São Mateus do Sul, PR and Arvorezinha, RS, Brazil, where mortality of the plants was up to 5%. Due to the need of control measures for this disease and to the lack of knowledge on the impact of this pathogen this new host, this study aimed to evaluate the aggressiveness of C. fimbriata isolates collected from yerba mate plantations and screen for host responses in yerba mate clones to Ceratocystis wilt. Two experiments were conducted in a completely randomized design, with 11 treatments (isolates) to assess aggressiveness of the isolates. Two experiments were conducted to assess resistance of yerba mate to C. fimbriata in a completely randomized design in a 6 × 2 factorial scheme (6 clones × 2 isolates) in two different environmental conditions (plant growth chamber and greenhouse). The isolates of C. fimbriata showed different levels of aggressiveness to yerba mate, and all evaluated clones were susceptible to Ceratocystis wilt. The plant growth chamber condition led to a faster death of the plants compared with greenhouse. This information will be useful to understand the pathosystem and seek strategies for controlling this disease in yerba mate.

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THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE

Cited by 11 publications

References 13 publications

NITROGENATED FERTILIZATION FAVORS VEGETATIVE RESCUE AND PROPAGATION OF Ilex paraguariensis

NITROGENATED FERTILIZATION FAVORS VEGETATIVE RESCUE AND PROPAGATION OF Ilex paraguariensis

Plant rejuvenation: from phenotypes to mechanisms

Aggressiveness and screening for host responses in yerba mate (Ilex paraguariensis) clones to a wilt disease caused by Ceratocystis fimbriata

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