MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM
ABSTRACT Among the environmental variables that affect the growth and development of plants, the air temperature is of great importance. In this context, the objectives of this work were to model the growth of eucalyptus seedlings in terms of accumulated degree-days during the production process and...
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doaj-02b8cb50a13d42888ae37cade3f6236d2020-11-24T22:30:50ZengSociedade de Investigações FlorestaisRevista Árvore1806-908841210.1590/1806-90882017000200012S0100-67622017000200112MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUMAline Santana de OliveiraAristides RibeiroCarla Raphaela Araújo SilvaAloísio XavierAlex Ferreira de FreitasABSTRACT Among the environmental variables that affect the growth and development of plants, the air temperature is of great importance. In this context, the objectives of this work were to model the growth of eucalyptus seedlings in terms of accumulated degree-days during the production process and model validation. The study was conducted in the forest research nursery of the Department of Forestry, located in Viçosa (MG), during the periods of 08/02/2011 to 28/04/2011 and 03/08/2012 to 01/11/2012, making it possible to contemplate seasonal variations in the production cycle. The monitored variables were shoot height, stem diameter, leaf area, root length and fresh and dry biomass. Results showed that it took 1065 degree-days for the production of seedlings and sigmoidal models obtained showed high correlation and Willmott coefficients, indicating good performance for estimating the growth and development of eucalyptus seedlings. This tool has great potential for planning and monitoring the production of eucalyptus seedlings in nurseries.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622017000200112&lng=en&tlng=enGraus-dia acumuladosSilviculturaModelo sigmoidal |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Aline Santana de Oliveira Aristides Ribeiro Carla Raphaela Araújo Silva Aloísio Xavier Alex Ferreira de Freitas |
spellingShingle |
Aline Santana de Oliveira Aristides Ribeiro Carla Raphaela Araújo Silva Aloísio Xavier Alex Ferreira de Freitas MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM Revista Árvore Graus-dia acumulados Silvicultura Modelo sigmoidal |
author_facet |
Aline Santana de Oliveira Aristides Ribeiro Carla Raphaela Araújo Silva Aloísio Xavier Alex Ferreira de Freitas |
author_sort |
Aline Santana de Oliveira |
title |
MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM |
title_short |
MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM |
title_full |
MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM |
title_fullStr |
MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM |
title_full_unstemmed |
MODELING THE GROWTH OF EUCALYPTUS PLANTS BASED ON THE THERMAL SUM |
title_sort |
modeling the growth of eucalyptus plants based on the thermal sum |
publisher |
Sociedade de Investigações Florestais |
series |
Revista Árvore |
issn |
1806-9088 |
description |
ABSTRACT Among the environmental variables that affect the growth and development of plants, the air temperature is of great importance. In this context, the objectives of this work were to model the growth of eucalyptus seedlings in terms of accumulated degree-days during the production process and model validation. The study was conducted in the forest research nursery of the Department of Forestry, located in Viçosa (MG), during the periods of 08/02/2011 to 28/04/2011 and 03/08/2012 to 01/11/2012, making it possible to contemplate seasonal variations in the production cycle. The monitored variables were shoot height, stem diameter, leaf area, root length and fresh and dry biomass. Results showed that it took 1065 degree-days for the production of seedlings and sigmoidal models obtained showed high correlation and Willmott coefficients, indicating good performance for estimating the growth and development of eucalyptus seedlings. This tool has great potential for planning and monitoring the production of eucalyptus seedlings in nurseries. |
topic |
Graus-dia acumulados Silvicultura Modelo sigmoidal |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622017000200112&lng=en&tlng=en |
work_keys_str_mv |
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