Academic Journal
Plant density and growth of forage maize genotypes. ; Densidad de siembra y crecimiento de maíces forrajeros.
| العنوان: | Plant density and growth of forage maize genotypes. ; Densidad de siembra y crecimiento de maíces forrajeros. |
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| المؤلفون: | Sánchez-Hernández, Miguel Ángel, Aguilar-Martínez, Cecilio Ubaldo, Valenzuela-Jiménez, Nicolás, Sánchez-Hernández, César, Jiménez-Rojas, María Concepción, Villanueva-Verduzco, Clemente |
| المصدر: | Agronomía Mesoamericana; 2011: Agronomía Mesoamericana: Vol. 22, Issue 2 (July-December); 281-295 ; Agronomía Mesoamericana; 2011: Agronomía Mesoamericana: Vol 22, No 2 (Julio-diciembre); 281-295 ; 2215-3608 ; 1021-7444 |
| بيانات النشر: | Universidad de Costa Rica |
| سنة النشر: | 2011 |
| المجموعة: | Portal de revistas académicas de la Universidad de Costa Rica |
| مصطلحات موضوعية: | Hybrids, Zea mays L, leaf area index, Híbridos, índice de área foliar |
| الوصف: | A study was conducted to identify genotypes of maize withhigh forage potential. The fi rst experiment (E1) was conductedfrom November 2007 to February 2008, evaluating thegenotypes H-520, HE-1A17, HE-2A15, V-556AC, VS-536,A7573 and a native variety, at three densities (50000, 62500and 83333 plants/ha) and with four replications. In a secondexperiment (E2) (January to April 2009) the hybrids HE-1A17 and 2A15 were excluded and H-564C was added.The treatments were the combination of genotypes andsowing densities, in a randomized block design. Analysis ofvariance for each experiment were conducted, and combinedand comparison of means, by Tukey (P≤0.05). In the fi rstexperiment, the native genotype, average of densities, hadthe highest plant height (E1=247, E2=216 cm), total leafarea (E1=5834, E2=7516 cm2) and leaf area index (E1=3.8;E2=4.9), stem diameter (E1= 6.6; E2=7.5 cm) and forage yield(E1=44.3 t/ha). In the second experiment, H-564C (E2=36.6t/ha) surpassed the control. The density of 83333 plants/ha,average of genotypes, surpassed in forage yield (E1=35.8;E2=37.3 t/ha) the density of 62500 plants and 50000 plants/ha. For density, the maximum yield by genotype wasestablished at 83333 plants/ha in the native variety, whichproduced 57 t/ha of forage. On average of the densities, themaximum leaf area index was achieved with 83333 plants/ha,and the lowest was obtained with 50000 plants per hectare. ; El objetivo de este trabajo fue identifi cargenotipos de maíz con potencial forrajero. Un primer trabajo(E1) se hizo de noviembre del 2007 a febrero del 2008,se evaluaron los genotipos H-520, HE-1A17, HE-2A15,V-556AC, VS-536, A7573 y un genotipo criollo, en tresdensidades (50 000, 62 500, 83 333 plantas/ha) y cuatrorepeticiones. El segundo ensayo (E2) (de enero a abril del2009) se prescindió del HE-1A17 y HE-2A15, y se incluyóel H-564C. Los tratamientos fueron la combinación degenotipos y densidades, en un diseño de bloques al azar. Sehicieron análisis de varianza por experimento, el combinadoy comparación de medias ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | Spanish; Castilian |
| Relation: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11801/11123; https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11801 |
| DOI: | 10.15517/am.v22i2.11801 |
| الاتاحة: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11801 https://doi.org/10.15517/am.v22i2.11801 |
| رقم الانضمام: | edsbas.ECED16E4 |
| قاعدة البيانات: | BASE |
| DOI: | 10.15517/am.v22i2.11801 |
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