Cultivation

Rootstock — Sweet Chestnut

Castanea sativa Mill.

The rootstock for sweet chestnut is used for varietal propagation, overcoming species recalcitrance, and increasing resistance to Phytophthora. Grafting onto seedlings or clonal hybrids is the primary method for preserving the cultivar characteristics of the crop.

In the reference 14 varieties crop Sweet chestnut, where this is mentioned in the description.

For the propagation of sweet chestnut, seedlings of the species Castanea sativa itself are most often used, as well as interspecific hybrids, for example, those involving Castanea crenata. The use of hybrid rootstocks allows for targeted improvement of tree resistance to Phytophthora caused by Phytophthora cinnamomi and enhances compatibility with the scion. The choice of the rootstock-scion combination is also critical for adapting plants to soil and climatic conditions, particularly drought, and for regulating tree habit.

Grafting technology is a key method of propagation, as the tissues of the sweet chestnut exhibit pronounced recalcitrance and are difficult to root from cuttings. The success of grafting operations directly depends on the selection of compatible pairs. It is important to note that horse chestnut cannot serve as a rootstock for this crop, as these plants belong to different families and are biologically incompatible.

General information about the subject — on the page Rootstock.

Sources8

Varieties of Sweet chestnut mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.