25
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Evaluación productiva y composición química de seis genotipos de Medicago sativa L. en los Andes del norte de Perú Translated title: Productive evaluation and chemical composition of six genotypes of Medicago sativa L. in the Andes of northern Peru

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          RESUMEN Objetivo: Evaluar el rendimiento, la tasa de crecimiento, la altura de la planta y los contenidos de proteína bruta, ceniza y fibra detergente neutro en seis genotipos de Medicago sativa L. en dos pisos altoandinos de los Andes del norte del Perú. Materiales y Métodos: Se utilizó un diseño de bloques completamente al azar. Se consideraron las variedades de M. sativa (SW10, W450, HORTUS 401, W350, SW8210 y STAMINO 5) como los tratamientos, distribuidos en tres bloques, repetidos en las dos localidades, con un total de 36 unidades experimentales. Se evaluó la composición química, el rendimiento de forraje verde y materia seca, la tasa de crecimiento y la altura de la planta en los seis genotipos y su interacción. El análisis de los indicadores productivos se realizó mediante un análisis de varianza. Además, se realizaron pruebas de correlación de Pearson para determinar la relación entre la altura de la planta y el rendimiento de biomasa. Resultados: El piso altitudinal I logró 10 241,8 kg/ha/corte de forraje verde y 61 450,6 kg/ha/año, 1 739,9 kg/ha/corte y 10 498 kg/ha/año de materia seca, con la mejor producción. La variedad W-450 tuvo mayor rendimiento promedio de forraje verde (56 963 kg/ha/año) y de materia seca (10 483,9 kg/ha/año). La altura de la planta varió de 22,4 a 35,5 cm y la proteína bruta de 16,7 a 21,2 %. Los registros de ceniza fueron de 9,3 a 12,0 % y la fibra detergente neutro de 24,2 a 32,5 %. Conclusiones: Todas las variedades mostraron alto potencial para la producción de forraje en las condiciones de ambos pisos altitudinales. Asimismo, las condiciones ambientales fueron determinantes en el desempeño de los diferentes genotipos.

          Translated abstract

          ABSTRACT Objective: To evaluate the yield, growth rate, plant height and crude protein, ash and neutral detergent fiber contents in six genotypes of Medicago sativa L. and on two high Andean plateaus of northern Peru. Materials and Methods: A complete randomized block design was used. The M. sativa varieties (SW10, W450, HORTUS 401, W350, SW8210 and STAMINO 5) were considered the treatments, distributed in three blocks, repeated in the two localities, with a total of 36 experimental units. The chemical composition, green forage and dry matter yield, growth rate and plant height in the six genotypes and their interaction, were evaluated. The analysis of the productive indicators was done through variance analysis. In addition, Pearson’s correlation tests were carried out to find relation between plant height and biomass yield. Results: The altitudinal plateau I achieved 10 241,8 kg/ha/cut of green forage and 61 450,6 kg/ha/year, 1 739,9 kg/ha/cut and 10 498 kg/ha/year of dry matter, with the best production. The variety W-450 had higher average green forage yield (56 963 kg/ha/year) and dry matter (10 483,9 kg/ha/year). Plant height varied from 22,4 to 35,5 cm and crude protein from 16,7 to 21,2 %. The ash records were from 9,3 to 12,0 % and neutral detergent fiber from 24,2 to 32,5 %. Conclusions: All the varieties showed high potential for forage production under the conditions of both altitudinal plateaus. Likewise, the environmental conditions were determinant in the performance of the different genotypes.

          Related collections

          Most cited references25

          • Record: found
          • Abstract: found
          • Article: not found

          Determination of Ash in Animal Feed: AOAC Official Method 942.05 Revisited

          AOAc Official MethodSM 942.05, Ash in Animal Feed, has been applied in feed laboratories since its publication in the Official Methods of Analysis in 1942. it is a routine test with renewed interest due to the incorporation of “ash values” into modern equations for the estimation of energy content of dairy feed, beef feed, and pet food. As with other empirical methods, results obtained are a function of the test conditions. For this method, the critical conditions are the ignition time, ignition temperature, and any other furnace or weighing conditions. complete ignition can be observed by the absence of black color (due to residual carbonaceous material) in the ash residue. to investigate performance of AOAc 942.05, 15 samples were chosen to be representative of a wide range of feed materials. these materials were tested at the conditions of AOAc 942.05 (ignition at 600°c for 2 h) and similar or more rigorous conditions. the additional conditions investigated included: 600°c for 4 h; 600°c for 2 h, cool, and ignite 2 additional h; 600°c for 2 h, cool, wet, dry, and ignite 2 additional h; 550°c for 6 h; 550°c for 3 h, cool, and ignite 3 additional h; and 550°c for 3 h, cool, wet, dry, ignite 3 additional h. results for all other conditions investigated were found to be significantly different from the current AOAc Method 942.05. All ignition conditions were significantly different from each other except two: 550°c for 3 h, cool, ignite 3 additional h; and 550°c for 3 h, cool, wet, dry, and ignite 3 additional h. recommendations for modification to AOAc Official Method 942.05 are suggested based on statistical analysis of the data and a review of the literature.
            Bookmark
            • Record: found
            • Abstract: not found
            • Book: not found

            R: A language and environment for statistical computing

              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Alfalfa forage yield, soil water and P availability in response to plastic film mulch and P fertilization in a semiarid environment

                Bookmark

                Author and article information

                Journal
                pyf
                Pastos y Forrajes
                Pastos y Forrajes
                Estación Experimental de Pastos y Forrajes "Indio Hatuey" (Matanzas, , Cuba )
                0864-0394
                2078-8452
                2022
                : 45
                : e7
                Affiliations
                [1] Av. Atahualpa 1050. Cajamarca 06003 Lima orgnameUniversidad Nacional de Cajamarca orgdiv1Facultad de Ingeniería en Ciencias Pecuarias Peru
                [2] Jr. Wiracocha s/n, Baños del Inca, Cajamarca 06004 orgnameInstituto Nacional de Innovación Agraria (INIA) orgdiv1Programa Nacional de Pastos y Forrajes, Dirección de Desarrollo Tecnológico Agrario orgdiv2Estación Experimental de Baños del Inca Perú
                Article
                S0864-03942022000100007 S0864-0394(22)04500000007
                e35fc057-37c1-42a7-8bfd-8b2f690c4127

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 31 January 2022
                : 15 October 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 0
                Product

                SciELO Cuba

                Categories
                ARTÍCULO CIENTIFICO

                leguminosas forrajeras,interacción genotipo ambiente,composición química,forage legumes,genotype environment interaction,chemical composition

                Comments

                Comment on this article