AVALIAÇÃO DE PLANTAS DE Cordia americana EM VIVEIRO UTILIZANDO CARACTERES MORFOLÓGICOS

Abstract

6 RESUMO ABSTRACTA Cordia americana (Linnaeus) Cordia americana (Linnaeus) Gottshling & J.E. Mill is used in forest restoration to recover degraded areas and riparian forest, therefore, it is important to know the quality of seedlings produced in nurseries. Thus, the present study aims to predict the Dickson quality index in Cordia americana seedlings under different arrangement conditions. The design was conducted in a protected environment in a randomized block design, in which two sizes (90 and 170 cm³) of the tube and two densities were tested, totaling four combinations. The following morphological parameters were evaluated: plant height, stem diameter, leaf phytomass, stem and root, leaf area, and Dickson quality index. Plant growth was influenced significantly by the volume of the tube and density of plants throughout the evaluation period of the experiment. The container with 170 cm³ volume and 50% density was the highest IQD produced plants with best quality.GottshlingPALAVRAS-CHAVE: Adensamento de plantas, Área foliar, Guajuvira, Índice de Dickson.

MORFOLOGIA OVARIANA E DOS OVIDUTOS DE Trachemys scripta elegans (WIED, 1839, TESTUDINES) CRIADAS NO CERRADO BRASILEIRO

“…Thus, the arrangement of plants can be considered an important management practice to control the interception of radiation. The importance of light in seedling growth can be seen in several studies (Behling et al, 2015;Schwerz et al, 2017;Trautenmüller et al, 2017;Eloy et al, 2017).…”

EFFICIENCY OF THE CONVERSION OF PHOTOSYNTHETIC BIOMASS IN Cordia americana SEEDLINGS

“…Thus, the arrangement of plants can be considered an important management practice to control the interception of radiation. The importance of light in seedling growth can be seen in several studies (Behling et al, 2015;Schwerz et al, 2017;Trautenmüller et al, 2017;Eloy et al, 2017).…”

“…To produce seedlings in shorter time, the use of 100% density can benefit from greater efficiency in converting PARint to biomass. However, in this condition the care of the quality and health of the seedlings are fundamental, since the survival, the establishment, the frequency of the cultural treatments and the initial growth of the forests are closely related to the quality of the seedlings (Trautenmüller et al, 2017).…”

PRODUÇÃO DE MUDAS DE Albizia lebbeck (L.) Benth SOB DIFERENTES FORMULAÇÕES E DOSES DE OSMOCOTE®

“…O índice de qualidade de Dickson é considerado promissor por considerar as associações entre os caracteres dendrométricos e alométricos em sua fórmula matemática, pois utiliza diversos parâmetros morfológicos relevantes (ELOY et al, 2013;TRAUTENMULLER et al, 2017a). Para seu cálculo são consideradas a robustez e o equilíbrio da distribuição da biomassa na muda, ponderando os resultados de várias características importantes empregadas para avaliação da qualidade das mudas (FONSECA et al, 2002).…”