THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE
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| Format: | Artículo científico |
| Langue: | en |
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Universidade Federal de Lavras
2018
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| _version_ | 1876459231170789376 |
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| author | Bruno Nascimento |
| author_facet | Bruno Nascimento |
| contents | THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE Bruno Nascimento Alexandra Cristina Schatz Sá Lucas Bonez de Lemos Diego Pereira da Rosa Mariane de Oliveira Pereira Marcio Carlos Navroski Agrociencias Girdling Mate tree Detached live branches Vegetal reinvigoration The induction of epicormic shoots is very important for the success of vegetative propagation in forestry species, due to the high rooting capacity of the reinvigorated material. However, it is necessary to determine the most appropriate technique for this purpose, aiming for greater productivity and better reinvigoration, which may be different for each species. The objective of this search was to evaluate different induction techniques for the production of epicormic shoots in I. paraguariensis mother trees in the municipality of Urupema, Santa Catarina state, considering four rescue techniques: complete girdling (100%); semi-girdling (50%); detached live branches, and; shoots of the treetop (canopy). Three evaluations were made for: trees with epicormic shoots (%), average number of shoots and their average length (cm). Shoots were collected at 180 days after (February 2017) the application of the experiment (August 2016), separating in: rejuvenated shoots and of the treetop. At 90 days, cuttings variables were evaluated: rooting (%), calogenesis (%), average root number and their average length (cm). The semi-girdling was superior to shoot length (5.3 cm). The detached live branches obtained the highest average number of shoots (4.7), however, they were not able for cutting, due to their short length (0,6 cm). For cutting, there was only difference for the number of roots formed, and the rejuvenated material was superior (2,3) than treetop (0.8). It is recommended the use of semi-girdling technique for greater production of juvenile shoots and use reinvigorated cuttings for vegetative propagation, considering the greater number of roots formed. 2018 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74460167010 https://www.redalyc.org/journal/744/74460167010/ https://www.redalyc.org/journal/744/74460167010/html/ https://www.redalyc.org/journal/744/74460167010/74460167010.epub https://www.redalyc.org/journal/744/74460167010/movil 10.1590/01047760201824032584 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.24 |
| format | Artículo científico |
| id | redalyc_74460167010 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidade Federal de Lavras |
| spellingShingle | THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE Bruno Nascimento Agrociencias Girdling Mate tree Detached live branches Vegetal reinvigoration THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE Bruno Nascimento Alexandra Cristina Schatz Sá Lucas Bonez de Lemos Diego Pereira da Rosa Mariane de Oliveira Pereira Marcio Carlos Navroski Agrociencias Girdling Mate tree Detached live branches Vegetal reinvigoration The induction of epicormic shoots is very important for the success of vegetative propagation in forestry species, due to the high rooting capacity of the reinvigorated material. However, it is necessary to determine the most appropriate technique for this purpose, aiming for greater productivity and better reinvigoration, which may be different for each species. The objective of this search was to evaluate different induction techniques for the production of epicormic shoots in I. paraguariensis mother trees in the municipality of Urupema, Santa Catarina state, considering four rescue techniques: complete girdling (100%); semi-girdling (50%); detached live branches, and; shoots of the treetop (canopy). Three evaluations were made for: trees with epicormic shoots (%), average number of shoots and their average length (cm). Shoots were collected at 180 days after (February 2017) the application of the experiment (August 2016), separating in: rejuvenated shoots and of the treetop. At 90 days, cuttings variables were evaluated: rooting (%), calogenesis (%), average root number and their average length (cm). The semi-girdling was superior to shoot length (5.3 cm). The detached live branches obtained the highest average number of shoots (4.7), however, they were not able for cutting, due to their short length (0,6 cm). For cutting, there was only difference for the number of roots formed, and the rejuvenated material was superior (2,3) than treetop (0.8). It is recommended the use of semi-girdling technique for greater production of juvenile shoots and use reinvigorated cuttings for vegetative propagation, considering the greater number of roots formed. 2018 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74460167010 https://www.redalyc.org/journal/744/74460167010/ https://www.redalyc.org/journal/744/74460167010/html/ https://www.redalyc.org/journal/744/74460167010/74460167010.epub https://www.redalyc.org/journal/744/74460167010/movil 10.1590/01047760201824032584 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.24 |
| title | THREE EPICORMIC SHOOT TECHNIQUES IN I. paraguariensis MOTHER TREES AND ITS CUTTING ACCORDING TO THE MATERIAL REJUVENATION DEGREE |
| topic | Agrociencias Girdling Mate tree Detached live branches Vegetal reinvigoration |
| url | https://www.redalyc.org/articulo.oa?id=74460167010 https://www.redalyc.org/journal/744/74460167010/ https://www.redalyc.org/journal/744/74460167010/html/ https://www.redalyc.org/journal/744/74460167010/74460167010.epub https://www.redalyc.org/journal/744/74460167010/movil |