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 uniform methodology across different locations. This study aimed to evaluate the effect of scion×rootstock combinations on tomato yield and accumulated degree days for each phenological stage. A randomized block design with four repetitions treatments was used. Tomato cv. Libertador seedlings were used as shoot, self-grafted, over rootstocks ‘Olimpo’ ‘Armada’. In addition, there non-grafted plant control. There no significant differences between since cultivation required 2,567°Cd-1. variables, such height, internode number length, flowers, did not vary significantly grafting non-grafting treatments. plants grafted vigor rootstock produced 39.4 20.6% more first category fruits total fruit than ones. heat units necessary complete production cycle affected grafting, use had positive under plastic house conditions.