INFLUENCE OF WATER DEFICIT AND SEASON ON BIOMASS YIELD FROM CLONAL STANDS OF EUCALYPTUS
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidade Federal de Lavras
2013
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| _version_ | 1876440441412386816 |
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| author | Talita Miranda Teixeira Xavier |
| author_facet | Talita Miranda Teixeira Xavier |
| contents | INFLUENCE OF WATER DEFICIT AND SEASON ON BIOMASS YIELD FROM CLONAL STANDS OF EUCALYPTUS Talita Miranda Teixeira Xavier José Eduardo Macedo Pezzopane Ricardo Miguel Penchel Marcos Vinicius Winckler Caldeira Edvaldo Fialho dos Reis Agrociencias growth Water deficit Eucalyptus grandis x Eucalyptus urophylla This study aimed to analyze the influence of different levels of water deficit (DH) on initial seedling development of six clonal stands of hybrid Eucalyptus grandis x E. urophylla in two seasons of the year. The experiment was conducted in the experimental site of UFES, in the municipality of Jerônimo Monteiro (ES), over two seasons: from February 9, 2009 to June 9, 2009 (season 1) and from July 11, 2009 to November 7, 2009 (season 2). In all experimental treatments, the first 30 days consisted of acclimating seedlings to the soils, which were thus irrigated. DH levels used in the experiment included: D0 - no water deficit; D1 - 90 days of water deficit; D2 - 60 days of water deficit followed by resumed irrigation for 30 days; D3 - 30 days of irrigation and 60 days of water deficit. The experiment was laid out in a completely randomized design, in subdivided plots (2x4), with four (4) levels of water deficit in the plot and two (2) seasons in the subplots, using three replications. Data on total dry matter of leaves, stem and branches, and root were subjected to analysis of variance and, if found significant, means were compared by the Tukey test at the 5% probability level. The environmental conditions of season 1 favored dry matter yield from both clonal stands, while season 2, having milder climate conditions, failed to favor potential growth of seedlings, even with irrigation conditions being satisfactory. Different levels of water deficit gradually reduced dry matter yield, yet without following a pattern of reduction. 2013 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74428921015 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.19 |
| format | Artículo científico |
| id | redalyc_74428921015 |
| institution | Redalyc |
| language | en |
| publishDate | 2013 |
| publisher | Universidade Federal de Lavras |
| spellingShingle | INFLUENCE OF WATER DEFICIT AND SEASON ON BIOMASS YIELD FROM CLONAL STANDS OF EUCALYPTUS Talita Miranda Teixeira Xavier Agrociencias growth Water deficit Eucalyptus grandis x Eucalyptus urophylla INFLUENCE OF WATER DEFICIT AND SEASON ON BIOMASS YIELD FROM CLONAL STANDS OF EUCALYPTUS Talita Miranda Teixeira Xavier José Eduardo Macedo Pezzopane Ricardo Miguel Penchel Marcos Vinicius Winckler Caldeira Edvaldo Fialho dos Reis Agrociencias growth Water deficit Eucalyptus grandis x Eucalyptus urophylla This study aimed to analyze the influence of different levels of water deficit (DH) on initial seedling development of six clonal stands of hybrid Eucalyptus grandis x E. urophylla in two seasons of the year. The experiment was conducted in the experimental site of UFES, in the municipality of Jerônimo Monteiro (ES), over two seasons: from February 9, 2009 to June 9, 2009 (season 1) and from July 11, 2009 to November 7, 2009 (season 2). In all experimental treatments, the first 30 days consisted of acclimating seedlings to the soils, which were thus irrigated. DH levels used in the experiment included: D0 - no water deficit; D1 - 90 days of water deficit; D2 - 60 days of water deficit followed by resumed irrigation for 30 days; D3 - 30 days of irrigation and 60 days of water deficit. The experiment was laid out in a completely randomized design, in subdivided plots (2x4), with four (4) levels of water deficit in the plot and two (2) seasons in the subplots, using three replications. Data on total dry matter of leaves, stem and branches, and root were subjected to analysis of variance and, if found significant, means were compared by the Tukey test at the 5% probability level. The environmental conditions of season 1 favored dry matter yield from both clonal stands, while season 2, having milder climate conditions, failed to favor potential growth of seedlings, even with irrigation conditions being satisfactory. Different levels of water deficit gradually reduced dry matter yield, yet without following a pattern of reduction. 2013 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74428921015 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.3 Vol.19 |
| title | INFLUENCE OF WATER DEFICIT AND SEASON ON BIOMASS YIELD FROM CLONAL STANDS OF EUCALYPTUS |
| topic | Agrociencias growth Water deficit Eucalyptus grandis x Eucalyptus urophylla |
| url | https://www.redalyc.org/articulo.oa?id=74428921015 |