A great rootstock compatible with Oranges and Mandarins. Shows a fantastic resistance to nematodes, phytophthora and tristeza virus. Trifoliata will restrict growth of trees and can be planted at high density. They have a shallow fibrous root system and therefore prefer cooler areas on clay/loam soils. (Low drought tolerance). They require good draining soil with little alkaline. Generally are slower growing but are favoured in replant zones. Superior quality fruit is produced on this stock.

Is tolerant of tristeza and cooler condtions however, it is less tolerant to alkaline soils. Trees have average protection against rots, exocortis, psorosis and cachexia. They do not perform well in sand or clay soils but grow well in loams. Overall Cleo produces a good quality tree with moderate vigour and medium root distribution.

A rootstock for lemons. Is very similar to Rough Lemon, only Volkameriana yields lower and has stronger Phytophthora resistance. Trees grow large and are healthy but fruit quality isn't as good. Quite cold hardy, vigorous.

Troyer rootstock have average tolerance to salinity and good results in sand, loam or poor draining soils. Has reasonably strong resistance against phytophthora, tristeza, excortis and nematodes. Grows medium size, thin, smooth fruit with a high juicy content. Can not be planted in high alkaline soils.

Rough Lemon is best planted on virgin soils. It produces a good quality tree with thick skinned large rough fruit. Trees are susceptible to nematodes, root diseases, water logging and phytophthora. Shows strong resistance to exocortix and tristeza. Average tolerance to alkaline and loam soils. Performs well in sand. Poor tolerance to salinity.