Tomate (Solanum lycopersicum L.) cultivado bajo invernadero: correlaciones entre variables
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Monge Pérez, José Eladio
Loría Coto, Michelle
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Abstract
Se establecieron correlaciones de Pearson para 63 genotipos de tomate producidos bajo invernadero, entre siete variables cuantitativas: edad al inicio de la cosecha (ddt), peso del fruto (g), número de frutos por racimo, rendimiento (ton/ha), firmeza del fruto (N), porcentaje de sólidos solubles totales (°Brix), y pH del jugo del fruto. Las únicas correlaciones de Pearson evaluadas en los 63 genotipos que fueron altas (r ≥ 0,69) y con significancia estadística (p ≤ 0,05), se obtuvieron entre el porcentaje de sólidos solubles totales y el peso del fruto (r = -0,72), en cuyo caso se obtuvo la regresión lineal (R2 = 0,52); y entre el porcentaje de sólidos solubles totales y la edad al inicio de la cosecha (r = -0,71; R2 = 0,50). Se obtuvieron otras 10 correlaciones altas y con significancia estadística, según el tipo de tomate o el momento de siembra.
For 63 tomato genotypes grown under greenhouse conditions the researchers estimated Pearson correlations among seven quantitative variables: number of days to the start of harvest (days after transplant), fruit weight (g), number of fruits per cluster, yield (ton/ha), fruit firmness (N), percentage of total soluble solids (°Brix), and fruit juice pH. The only two Pearson correlations evaluated in the 63 genotypes that were high (r ≥ 0,69) and statistically significant (p ≤ 0,05), were obtained among percentage of total soluble solids and fruit weight (r = -0,72), showing a linear regression statistic (R2) of 0.52; and among percentage of total soluble solids and the number of days to the start of harvest (r = -0,71; R2 = 0,50);. Statistically significant correlations were observed in ten additional cases, not across all genotypes but estimated according the type of tomato or the planting date.
For 63 tomato genotypes grown under greenhouse conditions the researchers estimated Pearson correlations among seven quantitative variables: number of days to the start of harvest (days after transplant), fruit weight (g), number of fruits per cluster, yield (ton/ha), fruit firmness (N), percentage of total soluble solids (°Brix), and fruit juice pH. The only two Pearson correlations evaluated in the 63 genotypes that were high (r ≥ 0,69) and statistically significant (p ≤ 0,05), were obtained among percentage of total soluble solids and fruit weight (r = -0,72), showing a linear regression statistic (R2) of 0.52; and among percentage of total soluble solids and the number of days to the start of harvest (r = -0,71; R2 = 0,50);. Statistically significant correlations were observed in ten additional cases, not across all genotypes but estimated according the type of tomato or the planting date.
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Keywords
Solanum lycopersicum, Calidad, Rendimiento, °Brix, Correlación de Pearson, Regresión lineal, Quality, Yield, Pearson correlation, Linear regression
Citation
https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4478/4074