Cultivation

Clementine rootstock

Citrus clementina hort. ex Tanaka

The choice of rootstock for clementine determines the tree's adaptation to soil type, its resistance to tristeza virus, Phytophthora, and nematodes, and also controls growth vigor and crop quality.

In the reference 9 varieties crop Clementine, where this is mentioned in the description.

The use of rootstocks such as trifoliata, 'Flying Dragon', or citrumelo critically influences xylem anatomy and the overall condition of the plant. Rootstock mismatch can lead to anatomical incompatibility, manifested by overgrowth at the graft union, tissue necrosis, and premature tree decline.

When selecting a rootstock, ecological specialization is taken into account: for heavy soils, resistance to Phytophthora is a priority, while for calcareous soils, the ability to function efficiently at high pH is key. Furthermore, the rootstock serves as a tool for managing clementine habit, allowing for canopy growth restriction in high-density plantings.

Rootstock selection determines the phytosanitary status of orchards, particularly tolerance to citrus tristeza virus. The use of rootstocks intolerant to this pathogen, such as sour orange, is unacceptable in regions where the infection is present.

General information about the subject — on the page Rootstock.

Sources7

Varieties of Clementine 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.