Phenology growth and yield of grafted tomato plants in the high Andean region of Colombia

The BBCH (Biologische Bundesanstalt, Bundessortenamt und CHemische Industrie) scale is a system that helps producers monitor phenology by employing a uniform methodology across different locations. This study aimed to evaluate the effect of different scion×rootstock combinations on tomato yield and...

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Bibliographic Details
Main Authors:	Ramírez-Jiménez, Jamer Alexis, Hoyos-Carvajal, Lilliana María, Córdoba-Gaona, Oscar de Jesús
Format:	Online
Language:	eng
Published:	Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2021
Subjects:	Solanum lycopersicum BBCH scale Degree days Grafting Scion × rootstock Tomato Plant physiology Escala BBCH Grados día Injertación Injerto × patrón Tomate Fisiología vegetal
Online Access:	https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/11667
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Summary:	The BBCH (Biologische Bundesanstalt, Bundessortenamt und CHemische Industrie) scale is a system that helps producers monitor phenology by employing a uniform methodology across different locations. This study aimed to evaluate the effect of different scion×rootstock combinations on tomato yield and accumulated degree days for each tomato phenological stage. A randomized block design with four repetitions and four treatments was used. Tomato cv. Libertador seedlings were used as a shoot, self-grafted, and over the rootstocks ‘Olimpo’ and ‘Armada’. In addition, there was a non-grafted plant control. There were no significant differences for the accumulated degree days between the treatments since the tomato cultivation required 2,567°Cd-1. The variables, such as plant height, internode number and length, and number of flowers, did not vary significantly between the grafting and non-grafting treatments. The tomato plants grafted over a vigor rootstock produced 39.4 and 20.6% more first category fruits and total fruit yield than non-grafted ones. The heat units necessary to complete the tomato production cycle was not affected by the grafting, and the use of a vigor rootstock had a positive effect on the tomato yield under plastic house conditions.