2021 NC-140 Regional Rootstock Research Project State Report: British Columbia

Citation

NC-140 Regional Rootstock Research Project State Report: British Columbia. 2021. nc140.org

Plain language summary

In the NC140 2019 Buckeye Gala trial at Summerland Research and Development Centre, NZ#5 rootstock demonstrated the most vigorous trunk growth in the growing season of 2021, followed by G.935 > G.969 > G.4814 ≈ NZ#1 > B.10 ≈ G.41 ≈ G.11 > M.26 ≈ NZ#2; M.9T337 and G.214 led to the smallest trunk growth. G.935, G.4814 and G.969 had the highest yield. G.214 and NZ#2 demonstrated the highest yield efficiency. The fruit on G.41, NZ#1, NZ#5, G.4814 and G.935 had higher average weight than on other rootstocks. M.9T337 led to the lowest yield and the lowest fruit weight. Heat waves in the Okanagan Valley in the summer of 2021 caused heat damages to up to 30% of apple fruits. In the NC140 2019 Buckeye Gala trial, G.935, G.969 and G.4814 demonstrated lower percent of sunburn necrotic and browning apples per tree, than other rootstocks.

Abstract

the trial progress was reported. In the NC140 2019 Buckeye Gala trial at Summerland Research and Development Centre, NZ#5 rootstock demonstrated the most vigorous trunk growth in the growing season of 2021, followed by G.935 > G.969 > G.4814 ≈ NZ#1 > B.10 ≈ G.41 ≈ G.11 > M.26 ≈ NZ#2; M.9T337 and G.214 led to the smallest trunk growth. G.935, G.4814 and G.969 had the highest yield. G.214 and NZ#2 demonstrated the highest yield efficiency. The fruit on G.41, NZ#1, NZ#5, G.4814 and G.935 had higher average weight than on other rootstocks. M.9T337 led to the lowest yield and the lowest fruit weight. Heat waves in the Okanagan Valley in the summer of 2021 caused heat damages to up to 30% of apple fruits. In the NC140 2019 Buckeye Gala trial, G.935, G.969 and G.4814 demonstrated lower percent of sunburn necrotic and browning apples per tree, than other rootstocks.

Publication date

2021-11-30

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