Geneva 41

A new rootstock for a sustainable and efficient apple orchard

Among the rootstocks released by the Cornell University and the United States Department of Agriculture-Agricultural Research Service (USDA-ARS), G®41 is one of the most promising. Its origin, main characteristics and performance are reported below.

General information

Origin

(New York, USA) Plant Genetic Resources Unit, Cornell University (*): Protected rootstock. Plant Patent Application Publication, No. US 2006/0174387 P1 (March 08, 2006).

Agronomic Characteristics

Vigor

Similar to or slightly higher than M.9 Pajam®2.

Yield

High and very precocious

Branching

Difficult to propagate in stool beds. Brittle graft union with some cultivars

Efficiency

105-115% compared to M.9.

Tolerance

Very cold Hardy.

Resistances

Apple Replant Disease, Fire Blight, Crown Rot and Woolly Apple Aphid.

Tree vigor

Tree size affected by traditional and new rootstocks, including different releases from Plant Genetic Resources Unit, Cornell University, Geneva & USDA Agricultural Research Unit (New York-U.S.A.). Source: G. Fazio. Personal com., FEM (San Michele – Italy), September 2018.

Agronomical Performance

Different reports from USA and Europe, in this case from the EUFRIN; evidenced the good performance of different rootstocks from “G” series, in particular the G®41 and G®11 grafted with the cultivars ‘Gala Brookfield® Baigent’, ‘Golden Delicious Reinders’ and ‘Story® Inored’ (Carbó et al., 2015).

Effect of rootstock on annual and cumulative yields of eight old years tree of ‘Gala Brookfield® Baigent’ apple grafted on different rootstocks in the EEA IRTA-Mas Badia (Girona-Spain) planted in February 2014 in a replanted plot (Carbó et al., 2022).

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The data and results shown in these graphic resources are made for informative purposes only and it is not guaranteed to they will be achieved in all cases, due to several facts influencing plant growth such as climatic and geographical circumstances, soil characteristics, as well as use conditions and agricultural habits.