Tomato (Solanum lycopersicum L.) grown under greenhouse conditions: correlations among variables

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), p...

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Main Authors: Monge-Pérez, Jose Eladio, Loría-Coto, Michelle
Format: Artículo
Language: Español
Published: Editorial Tecnológica de Costa Rica (entidad editora) 2019
Subjects:
Online Access: https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/4478
https://hdl.handle.net/2238/11973
Summary: 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.