Morphological leaf traits and their relationship to defoliation in three forage plant species
Plants respond to biotic and abiotic changes through their phenotypic plasticity. These variations can be expressed in traits related to leaf morphology, plant growth, and defoliation. We evaluated the influence of plant age and leaf age on leaf traits and its relation with defoliation in three forage plant species, Tithonia diversifolia, Morus alba, and Moringa oleifera. Interspecifically, M. oleifera showed thicker leaves, higher dry weight, leaf asymmetry, and leaf area; M. alba showed harder leaves and higher specific leaf area. Intraspecifically, in the M. oleifera leaf area, dry weight, thickness, and hardness of leaves increased only in 30 day-old-plant. While in M. alba intermediate leaves had higher leaf area; and, 90 day-old-plant had higher thickness and hardness. Leaf area and dry weight were higher in 60 and 30 day-old-plants, respectively. In T. diversifolia intermediate leaves showed higher dry weight and leaf thickness, 30 day-old-plant had higher leaf area and leaf dry weight; and, 90 day-old-plant had higher leaf thickness. In addition, we found negative relationships between young leaves with leaf thickness, leaf hardness, and leaf dry weight. Defoliation showed positive relationships with SLA and leaf hardness, and negative ones with leaf thickness, leaf dry weight, leaf asymmetry, and leaf area.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología
2023
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Ruiz-Santiago, Roberto Rafael Ballina-Gómez, Horacio Salomón Ruiz-Sánchez, Esaú |
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Ruiz-Santiago, Roberto Rafael Ballina-Gómez, Horacio Salomón Ruiz-Sánchez, Esaú Morphological leaf traits and their relationship to defoliation in three forage plant species |
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Ruiz-Santiago, Roberto Rafael Ballina-Gómez, Horacio Salomón Ruiz-Sánchez, Esaú |
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Ruiz-Santiago, Roberto Rafael |
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Morphological leaf traits and their relationship to defoliation in three forage plant species |
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Morphological leaf traits and their relationship to defoliation in three forage plant species |
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Morphological leaf traits and their relationship to defoliation in three forage plant species |
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Morphological leaf traits and their relationship to defoliation in three forage plant species |
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Morphological leaf traits and their relationship to defoliation in three forage plant species |
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morphological leaf traits and their relationship to defoliation in three forage plant species |
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Plants respond to biotic and abiotic changes through their phenotypic plasticity. These variations can be expressed in traits related to leaf morphology, plant growth, and defoliation. We evaluated the influence of plant age and leaf age on leaf traits and its relation with defoliation in three forage plant species, Tithonia diversifolia, Morus alba, and Moringa oleifera. Interspecifically, M. oleifera showed thicker leaves, higher dry weight, leaf asymmetry, and leaf area; M. alba showed harder leaves and higher specific leaf area. Intraspecifically, in the M. oleifera leaf area, dry weight, thickness, and hardness of leaves increased only in 30 day-old-plant. While in M. alba intermediate leaves had higher leaf area; and, 90 day-old-plant had higher thickness and hardness. Leaf area and dry weight were higher in 60 and 30 day-old-plants, respectively. In T. diversifolia intermediate leaves showed higher dry weight and leaf thickness, 30 day-old-plant had higher leaf area and leaf dry weight; and, 90 day-old-plant had higher leaf thickness. In addition, we found negative relationships between young leaves with leaf thickness, leaf hardness, and leaf dry weight. Defoliation showed positive relationships with SLA and leaf hardness, and negative ones with leaf thickness, leaf dry weight, leaf asymmetry, and leaf area. |
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología |
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2023 |
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https://revistas.unal.edu.co/index.php/actabiol/article/view/88402 |
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oai:www.revistas.unal.edu.co:article-884022023-09-26T14:46:16Z Morphological leaf traits and their relationship to defoliation in three forage plant species CARACTERÍSTICAS MORFOLÓGICAS FOLIARES Y SU RELACIÓN CON LA DEFOLIACIÓN EN TRES ESPECIES DE PLANTAS FORRAJERAS CARACTERÍSTICAS MORFOLÓGICAS FOLIARES E SUA RELAÇÃO COM A DESFOLIAÇÃO EM TRÊS ESPÉCIES DE PLANTAS DE FORRAGEM Ruiz-Santiago, Roberto Rafael Ballina-Gómez, Horacio Salomón Ruiz-Sánchez, Esaú Fluctuating asymmetry Leaf damage Phenology Yucatan herbivoria idade da folha idade da planta Asimetría fluctuante Daño foliar Fenología Yucatán Plants respond to biotic and abiotic changes through their phenotypic plasticity. These variations can be expressed in traits related to leaf morphology, plant growth, and defoliation. We evaluated the influence of plant age and leaf age on leaf traits and its relation with defoliation in three forage plant species, Tithonia diversifolia, Morus alba, and Moringa oleifera. Interspecifically, M. oleifera showed thicker leaves, higher dry weight, leaf asymmetry, and leaf area; M. alba showed harder leaves and higher specific leaf area. Intraspecifically, in the M. oleifera leaf area, dry weight, thickness, and hardness of leaves increased only in 30 day-old-plant. While in M. alba intermediate leaves had higher leaf area; and, 90 day-old-plant had higher thickness and hardness. Leaf area and dry weight were higher in 60 and 30 day-old-plants, respectively. In T. diversifolia intermediate leaves showed higher dry weight and leaf thickness, 30 day-old-plant had higher leaf area and leaf dry weight; and, 90 day-old-plant had higher leaf thickness. In addition, we found negative relationships between young leaves with leaf thickness, leaf hardness, and leaf dry weight. Defoliation showed positive relationships with SLA and leaf hardness, and negative ones with leaf thickness, leaf dry weight, leaf asymmetry, and leaf area. Las plantas responden a cambios bióticos y abióticos acorde a su plasticidad fenotípica. Estas variaciones pueden expresarse en características relacionadas a la morfología foliar, crecimiento y defoliación. Este estudio evalúa la influencia de la edad de las plantas y de hojas sobre las características foliares, y su relación con la defoliación en tres especies forrajeras, Tithonia diversifolia, Morus alba y Moringa oleifera. M. oleifera mostró hojas con mayores valores de grosor, peso seco, asimetría y área; M. alba hojas más duras y con mayor área foliar especifica. M. oleifera el área foliar, peso seco, grosor y dureza incrementaron en plantas de 30 días. En tanto, que en M. alba las hojas intermedias tuvieron mayor área; y, las plantas de 90 días mayores valores de SLA, grosor y dureza. El área foliar y peso seco fueron mayores a los 60 y 30 días, respectivamente. En T. diversifolia las hojas intermedias presentaron mayor peso seco y grosor, las plantas de 30 días mayor área foliar y peso seco; y, las de 90 días, mayor grosor. Se encontraron relaciones negativas en hojas jóvenes con el grosor, dureza y peso seco. La defoliación mostró asociaciones positivas con el SLA y la dureza; y, negativas con el grosor, peso seco, asimetría y área. Subrayamos la importancia de realizar estudios que contribuyan al entendimiento de interrelaciones entre la estructura de la hoja, su función y sus relaciones con la expresión de los rasgos morfológicos de resistencia y tolerancia en especies tropicales de importancia económica y ecológica. As plantas respondem a alterações abióticas e bióticas de acordo com sua plasticidade fenotípica. Essas variações podem ser expressas em características relacionadas à morfologia foliar, crescimento e desfolhamento. Este estudo avalia a influência da idade das plantas e das folhas nas características foliares e sua relação com a desfolhamento em três espécies forrageiras, Tithonia diversifolia, Morus alba e Moringa oleifera. Inespecificamente, M. oleifera apresentou folhas com maiores valores de espessura, peso seco, assimetria e área; M. alba folhas mais duras e com maior SLA. Intraspecificamente, em M. oleifera a área foliar, peso seco, espessura e dureza aumentaram apenas em plantas de 30 dias. Enquanto isso, em M. alba as folhas intermediárias tiveram uma área maior; e, as plantas com 90 dias de SLA, espessura e dureza mais altas. A área foliar e o peso seco foram maiores aos 60 e 30 dias, respectivamente. Em T. diversifolia, as folhas intermediárias apresentaram maior peso e espessura secos, as plantas de 30 dias apresentaram maior área foliar e peso seco; e os de 90 dias, maior espessura. Foram encontradas relações negativas de folhas jovens com espessura, dureza e peso seco. Desfolhamento mostrou associações positivas com SLA e dureza; e negativo com espessura, peso seco, assimetria e área foliar. Ressaltamos a importância de realizar estudos que considerem características foliares em espécies forrageiras suscetíveis a danos por desfolhamento repetitivo, o que causaria respostas diferenciais em comparação com espécies não forrageiras. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Biología 2023-01-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unal.edu.co/index.php/actabiol/article/view/88402 10.15446/abc.v28n1.88402 Acta Biológica Colombiana; Vol. 28 No. 1 (2023); 12-22 Acta Biológica Colombiana; Vol. 28 Núm. 1 (2023); 12-22 1900-1649 0120-548X spa https://revistas.unal.edu.co/index.php/actabiol/article/view/88402/85864 Derechos de autor 2023 Acta Biológica Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0 |