&lt;strong&gt;Quality indicators in &lt;em&gt;Ochroma pyramidale&lt;/em&gt; seeds from three sites in the Ecuadorian Amazon for reforestation in degraded areas&lt;/strong&gt;

García, Yudel; Arteaga, Yasiel; Abreu, Reinier; Decker, Maria; Lazo, Yamila

doi:10.3390/mol2net-03-04609

Cited by 3 publications

(2 citation statements)

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“…The mechanisms regulating the start of germination are under selective pressures; thus, the variation of the germination capacity between and within the species is interpreted as an adaptation to the specific conditions of the local and regional habitat (Meyer et al, 1997). The reported percentages of GC for C. cateniformis are similar to the results obtained by Valencia et al, (2010), while for O. pyramidale the results are similar to what (García et al, 2017;Toledo-González et al, 2019), reported, and the results for S. macrophylla correspond to what and (Jácome-Segovia et al, 2019) described in their studies.…”

Section: Discussionsupporting

confidence: 88%

Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions

et al. 2023

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The aim of this study was to evaluate the quality patterns of Switenia macrophylla, Cedrelinga cateniformis and Ochroma pyramidale seeds and seedlings in response to restoration. The seed viability test was performed using 1 % tetrazolium (2,3,5-triphenyl tetrazolium chloride) during three staining times and the percentage of viability and vigor levels were considered according to the topological staining pattern. Germination speed, germination capacity, and morphological indices of plant quality were determined using the aboveground belowground ratio, slenderness, degree of lignification and Dickson's quality. The highest percentage of viable seeds with the maximum staining time (3 hours) was verified. The medium vigor category was higher in the three species, as determined by a partial reddish staining pattern as an expression of their physiological quality, which was reflected in the response to germination. The morphological quality indices allowed us to identify the species’ potential for growth and development for acclimatization to the area. The correspondence analysis was significant (p≤0.05), which facilitated the formation of quality groups, C. cateniformis was found to be of a high-enough quality as an indicator of its potential to cover restoration needs in Amazonian conditions.

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Section: Discussionsupporting

confidence: 88%

Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions

et al. 2023

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“…Due to its advantageous rapid growth, pau de balsa stands out as a forest species that has a shorter response time when compared to other eucalyptus and teak species, and is therefore considered as a productive and profitable activity that can benefit small and medium producers (CRUZ et al, 2020;WEIRICH, 2008). The cultivation of pau de balsa for commercial purposes occupies large areas in Ecuador due to its diversity in use, making it the country with the highest production and trade of the species (GARCÍA et al, 2017). In Brazil, more specifically in Mato Grosso, the first plantations of pau de balsa were carried out speculatively, with materials from different sources and without the use of appropriate silvicultural practices, which resulted in planting areas with great variability in tree patterns in relation to the quality of the trunk and the density of the wood.…”

Section: Introductionmentioning

confidence: 99%

Selection and phenotypic divergence in pau de balsa of different origins

Pecegueiro,

Tiago,

Behling

et al. 2023

Rev. DELOS

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Pau de balsa is a forest species that is native to the Amazon and stands out for its rapid growth, being an option for a productive and profitable activity. The objective of this study was to select phenotypically superior pau de balsa trees and verify the dissimilarity between them and their respective origins in order to identify individuals for wood production. Three distinct populations trees in plantations of pau de balsa implanted in January 2011 in the municipality of Guarantã do Norte, Mato Grosso, Brazil, were evaluated as to their characteristics of commercial importance. Among the trees evaluated, highlight the genotype A09 as a candidate for the matrix in breeding programs of the species due to its superiority in the characteristics of diameter at breast height and total height. Genotypes A09 and IF03 are the most genetically distant and S02 and S09 the most similar. The principal component analysis explained 81.24% of all the variance of the characteristics analyzed in the first two variables. With the results obtained, it was possible to identify the superior characteristics of the Ecuadorian genotypes A01, A09 and A14; the first two present good characteristics for wood production, and the third presents the lowest basic density of wood.

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Efecto de tres procedencias en la calidad de plántulas de Ochroma pyramidale (Malvaceae) en viveros de contenedores plásticos

García-Quintana,

López-Martínez,

García-Decoro

et al. 2024

MYB

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La correcta selección de fuentes de semilla constituye una herramienta clave para el éxito de los programas de reforestación. Este estudio evalúo el efecto de tres procedencias (Pastaza, Napo y Orellana) sobre la morfología de las semillas, parámetros germinativos y características morfofuncionales de plántulas de Ochroma pyramidale cultivadas en vivero. Se caracterizó el ambiente edáfico de los árboles semilleros de cada procedencia, se determinó la morfología de las semillas, los parámetros de germinación y se determinaron los atributos morfofisiológicos de calidad de plantas. Se encontraron diferencias significativas (p ≤ 0.05) entre los orígenes geográficos en cuanto a las propiedades físicas y químicas del suelo (clase textural, materia orgánica, pH, Ca2+, Mg2+, N, P, K+) y los caracteres morfológicos de las semillas (ancho, espesor, relación largo/ancho y área superficial). Los porcentajes de germinación obtenidos fueron de 71.7% para Orellana, 89.0% y 92.0% para Napo y Pastaza, respectivamente. Los atributos e índices morfológicos y fisiológicos de calidad de las plantas fueron diferentes entre procedencias. Las plantas cultivadas en vivero de los orígenes geográficos de Napo y Pastaza se caracterizaron por mayor crecimiento, biomasa, lignificación, parámetros fotosintéticos y mejor calidad. Los resultados permiten afirmar que la procedencia influye en la morfología de las semillas, germinación y calidad de plantas de O. pyramidale. Se identificó la existencia de dos grupos: por un lado, las procedencias Pastaza y Napo y, por otro Orellana, lo cual resulta información de utilidad para definir zonas de movimiento de germoplasma con material mejor aclimatado a los sitios de plantación en la Amazonía ecuatoriana.

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<strong>Quality indicators in <em>Ochroma pyramidale</em> seeds from three sites in the Ecuadorian Amazon for reforestation in degraded areas</strong>

Cited by 3 publications

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Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions

Seed viability, germination and seedling quality patterns of three forest species for restoration in Amazonian conditions

Selection and phenotypic divergence in pau de balsa of different origins

Efecto de tres procedencias en la calidad de plántulas de Ochroma pyramidale (Malvaceae) en viveros de contenedores plásticos

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