Producción de chile dulce en invernadero: correlación entre densidad de siembra y variables de rendimiento
Fecha
2021
Autores
Monge Pérez, José Eladio
Loría Coto, Michelle
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Resumen
Se establecieron correlaciones de Pearson en chile dulce (Capsicum annuum) cv. FBM-9, cultivado bajo condiciones de invernadero, utilizando dos tipos de poda (española y holandesa), entre la densidad de siembra y las siguientes variables: número de frutos por planta y por metro cuadrado, peso del fruto (g), y rendimiento total y comercial (ton/ha). El cultivo se manejó con fertirrigación, en sustrato de fibra de coco. Se presentaron 10 correlaciones de Pearson con significancia estadística (p≤0,05), en cuyo caso se obtuvieron las regresiones lineales. Independientemente del tipo de poda, se obtuvo una correlación significativa entre la densidad de siembra y: número de frutos de calidad de rechazo por planta (r = -0,55**); número de frutos de primera calidad por metro cuadrado (r = 0,58**); rendimiento total (r = 0,42*); rendimiento de primera calidad (r = 0,65**); y rendimiento comercial (r = 0,43*). Además, únicamente para los tratamientos con poda española, se halló una correlación significativa entre la densidad de siembra y: número de frutos de segunda calidad por planta (r = -0,59*); peso del fruto (r = 0,76**); y peso del fruto de primera calidad (r = 0,62*). Se concluye que el uso de una mayor densidad de siembra es lo más beneficioso para los productores, desde el punto de vista económico. Se recomienda ensayar densidades de siembra superiores a las incluidas en esta investigación (2,60-3,90 plantas/m2), para definir una densidad óptima.
For sweet pepper (Capsicum annuum) cv. FBM-9 grown under greenhouse conditions and using two pruning systems (Spanish and Dutch), the researchers estimated Pearson correlations among plant density and the following variables: number of fruits per plant and per square meter, fruit weight (g), and total and commercial yield (ton/ha). The crop was planted on coconut fiber as substrate, and managed with fertigation. There were 10 statistically significant Pearson correlations (p≤0,05). In those cases the linear regression statistics were calculated. Independently of pruning system, there was significant correlation between plant density and: number of noncommercial fruits per plant (r = -0,55**); number of first quality fruits per square meter (r = 0,58**); total yield (r = 0,42*); first quality yield (r = 0,65**); and commercial yield (r = 0,43*). Furthermore, only for Spanish pruning treatments there was significant correlation between plant density and: number of second quality fruits per plant (r = -0,59*); fruit weight (r = 0,76**); and first quality fruit weight (r = 0,62*). It is concluded that the use of a higher plant density is the best option for growers, from an economical point of view. It is recommended to evaluate higher plant densities than those used in this trial (2,60-3,90 plants/m2), to determine the optimum plant density.
For sweet pepper (Capsicum annuum) cv. FBM-9 grown under greenhouse conditions and using two pruning systems (Spanish and Dutch), the researchers estimated Pearson correlations among plant density and the following variables: number of fruits per plant and per square meter, fruit weight (g), and total and commercial yield (ton/ha). The crop was planted on coconut fiber as substrate, and managed with fertigation. There were 10 statistically significant Pearson correlations (p≤0,05). In those cases the linear regression statistics were calculated. Independently of pruning system, there was significant correlation between plant density and: number of noncommercial fruits per plant (r = -0,55**); number of first quality fruits per square meter (r = 0,58**); total yield (r = 0,42*); first quality yield (r = 0,65**); and commercial yield (r = 0,43*). Furthermore, only for Spanish pruning treatments there was significant correlation between plant density and: number of second quality fruits per plant (r = -0,59*); fruit weight (r = 0,76**); and first quality fruit weight (r = 0,62*). It is concluded that the use of a higher plant density is the best option for growers, from an economical point of view. It is recommended to evaluate higher plant densities than those used in this trial (2,60-3,90 plants/m2), to determine the optimum plant density.
Descripción
Palabras clave
Capsicum annuum, Poda, Peso del fruto, Calidad, Correlación de Pearson, Regresión lineal, Pruning, Fruit weight, Quality, Pearson correlation, Linear regression.
Citación
https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4983/5439