Evolución de la Calidad de Semillas de Cebolla Almacenadas en Condiciones no Controladas

Gaviola, Julio Cesar; Ordovini, A. F.; Lepez, Ramón; Makuch, M.A.

doi:10.4067/s0365-28072006000100002

Cited by 3 publications

(2 citation statements)

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“…La semilla es uno de los principales insumos para la agricultura, siendo su calidad un factor determinante del éxito o el fracaso de la empresa agrícola (Johnston et al, 2003;Gaviola et al, 2006). En los últimos años, los agricultores están exigiendo mayor calidad de los insumos, y en este contexto la calidad de las semillas representa, actualmente, el blanco más frecuente de exigencias.…”

Section: Introductionunclassified

Características Fisiológicas, Contenido de Aceite y Proteína en Genotipos de Soya, Evaluadas en Diferentes Sitios y Épocas de Cosecha, Brasil

et al. 2007

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A B S T R A C TThe objective of this study was to evaluate physiologic characteristics and oil and protein content in four soybean (Glycine max (L.) Merr.) cultivars (BRS 133, BRS 206, BRS 239 and CD 202) which were harvested in four different periods (R 7 stage, 7, 14 and 21 days after the first harvest stage) and produced over the growing season 2004-2005 in two sites of the Mato Grosso do Sul State, Brazil, Sidrolândia (21º00' S lat, 55º01' W long), and Dourados (22º11' S lat, 54º55' W long). A randomized complete block design was used in a split-plot experiment with three replicates. Seeds were evaluated by means of a germination test, accelerated aging and seedling emergence on sand. Oil content and protein in seed and soybean meal were also analyzed. BRS 133 and BRS 206 cultivars showed higher values of seed-protein, 35.67 and 35.0%, respectively, which also evidenced higher soybean meal protein content, 43.04 and 46.83%, respectively. The highest oil content was found in cv. CD 202, with a mean value of 22.63%. Germination and seed vigor potentials were significantly affected by harvest periods, which presented a significant reduction when soybean harvest was delayed, such characteristics could affect the plant potential for fast growth and adequate develop of soybean plants.

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Section: Introductionunclassified

Características Fisiológicas, Contenido de Aceite y Proteína en Genotipos de Soya, Evaluadas en Diferentes Sitios y Épocas de Cosecha, Brasil

et al. 2007

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“…The resulting seeds from the F 1 were sown, forming three families of segregating individuals known as the second filial generations (F 2.1 , F 2.2 , and F 2.3 ). Both F 1 and F 2 generations were sown in February 2016 and 2017, respectively, following the seed–seed method outlined by Gaviola (2020), and flowered during November–December of their corresponding years.…”

Section: Methodsmentioning

confidence: 99%

Heritability of floral traits in Allium cepa L. populations from biparental crosses

Noguera Serrano,

Gimenez,

Paz

et al. 2024

Crop Science

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Onions (Allium cepa L.) are one of the main vegetable crops worldwide. As an allogamous species with entomophilous pollination, floral traits play a critical role in seed production. Improving seed yield, especially for hybrid seed production, is very important. In this work, we obtained genetic information for floral traits using segregating populations from three male‐sterile lines and one open‐pollinated variety. Data on 16 floral traits, including perianth, gynoecium, stamens, and receptacle structures, were collected from the parental cultivars, their hybrids, and from segregating populations in the F2 and F3 generations. This dataset underpinned a comprehensive analysis of genetic variability, broad‐ and narrow‐sense heritability estimation, genetic gain predictions, and trait correlations. The evaluated traits exhibited high broad‐sense heritability values (0.08–0.85), but moderate narrow‐sense heritability values (0.01–0.68), implying that the observed phenotypic variance is mainly explained by genetic factors, with a minor additive genetic factors contribution. Consequently, the study revealed effective genetic gain for the analyzed traits. The phenotypic correlations observed in the parental cultivars were not always maintained in the segregating populations, suggesting random correlations. Meanwhile, genetic correlations were moderate to low, suggesting that the analyzed traits can be independently selected without affecting the expression of other floral traits. Notably, correlations among floral traits were significant in stable cultivars but weak in segregating populations, excluding pleiotropic effects. This work has successfully demonstrated the heritability of onion floral traits and provided a sound basis for selecting individuals with desirable attributes, with valuable practical implications for onion breeding and seed production.

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Manual de producción de semilla de calidad de soya en los valles interandinos de Colombia

Gómez¹,

Guerrero²,

Mérida³

et al. 2021

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Este manual presenta de forma práctica la información requerida para la producción de semilla de calidad del cultivo de soya, en especial, para los pequeños y medianos productores en los valles interandinos de Colombia. El método propuesto busca la conservación de las características genéticas de los materiales vegetales durante todo el proceso de obtención de semillas, sin descuidar los aspectos físicos y sanitarios. El manual presenta las labores de control estricto, desde la siembra hasta el almacenamiento, incluyendo las actividades de manejo agronómico (la selección del lote, la preparación del suelo, el establecimiento de las plantas, la fertilización, la descontaminación de plantas atípicas, el control de malezas y el manejo fitosanitario, entre otras). El cultivo de la oleaginosa soya o soja (Glycine max [L.] Merril) es de gran importancia industrial por su composición nutritiva en proteínas y ácidos grasos, si se compara con oleaginosas como el algodón, el maní, el girasol, la colza, la pulpa de coco deshidratada y la palma. En consecuencia, esta obra espera contribuir a la producción nacional de soya de calidad, poniendo al alcance de los productores una metodología efectiva, de fácil acceso y comprensión, para mejorar el rendimiento por hectárea.

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Evolución de la Calidad de Semillas de Cebolla Almacenadas en Condiciones no Controladas

Cited by 3 publications

References 0 publications

Características Fisiológicas, Contenido de Aceite y Proteína en Genotipos de Soya, Evaluadas en Diferentes Sitios y Épocas de Cosecha, Brasil

Características Fisiológicas, Contenido de Aceite y Proteína en Genotipos de Soya, Evaluadas en Diferentes Sitios y Épocas de Cosecha, Brasil

Heritability of floral traits in Allium cepa L. populations from biparental crosses

Manual de producción de semilla de calidad de soya en los valles interandinos de Colombia

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