Grafting for organic low-tech greenhouse tomatoes
Farmer: R. Victor & Nathan Klassen
Farm: Nith Valley Organics
Publish Date: August 11, 2021
Article Type: Research Project
Research Priorities: Seed Production, Selection & Breeding
As a follow-up to their 2019 multi-farm trial, we compared 5 large tomato varieties and 4 cherry tomato varieties grown by grafting onto four different rootstocks and an ungrafted control.
In a Nutshell
- The best choice of rootstock was specific to the scion, with some rootstocks producing no improvement
or even reducing yield for some varieties of scion.
- Compared to ungrafted plants, Caiman F1 large tomatoes had great yield and profitability when grafted DR0141TX rootstock.
- Preliminary data suggest that only Sakura cherry tomato may benefit from grafting on Fortanimo or Estanimo, but more replicates are needed to be confident.
- Preliminary data suggest that grafting “heirloom- like” hybrid varieties tested does not confer a yield advantage, but that open pollinated Striped German maybe benefit from being grafted onto Fortanimo.