Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO2,’ characterized by its weeping plant habit and typical weak growth; good adaptation at hot and dry conditions; and as a rootstock, weak vegetative growth that imparts uniformity, higher yield and better fertility to the grafted variety.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO1,’ characterized by its upright plant habit and medium strong growth; good adaptation at hot and dry conditions; and as a rootstock the weak vegetative growth imparts uniformity, higher yield and better fertility to the grafted variety.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO3,’ characterized by its upright plant habit and typical hybrid growth; good adaptation to hot and dry conditions; and as a rootstock, weak vegetative growth imparts uniformity, higher yield and better fertility to the grafted variety.

Abstract: A new and distinct rootstock variety of Prunus named ‘LC-52’ that is characterized by, the ability to serve well as rootstock that is compatible with all other cherries, wide leaves, semi-dwarf habit and hardiness to −15° Centigrade. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct rootstock variety of Prunus named ‘VSL-2’ that is characterized by an absence of suckers, a vigorous growth habit, pink flowers, the ability to serve well as rootstock that is compatible with all other cherries, and the ability to propagate well by softwood cuttings, stool beds and meristem cuttings in vitro. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, suitable to sandy soil with high productivity.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, adaptability to soil and high productivity.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, hardiness to frost and high productivity.

Abstract: A new and distinct cultivar of Prunus mahaleb is provided. The new cultivar is particularly well suited for serving as an understock during cherry production. A number of advantages are provided when compared to the standard Mahaleb rootstock. The cultivar is readily amenable to vegetative propagation (e.g., by the use of softwood cuttings), and exhibits some improved resistance to Phytophthora spp. When used with a ‘Bing’ cherry scion, increased yields have been observed. The new cultivar when grown without use as an understock forms a larger and more vigorous tree than the ‘UCMH 55’ and ‘UCMH 56’ cultivars that were products of the same research program. When used as a rootstock, the new cultivar produces a compact tree with a size reduction of approximately 20 to 25 percent compared to that produced when using a standard Mahaleb rootstock.

Abstract: A new and distinct cultivar of Prunus mahaleb is provided. The new cultivar is particularly well suited for serving as an understock during cherry production. A number of advantages are provided when compared to the standard Mahaleb rootstock. The cultivar is readily amenable to vegetative propagation (e.g., by the use of softwood cuttings), and exhibits improved resistance to Phytophthora spp. When used with a ‘Bing’ cherry scion, increased yields have been observed. The new cultivar when grown without use as an understock forms a smaller tree than the ‘UCMH 55’ and ‘UCMH 59’ cultivars that were products of the same research program.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, adaptability to soil and high productivity.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, suitable to sandy soil with high productivity.

Abstract: A new and distinct rootstock variety of Prunus named ‘VSL-2’ that is characterized by an absence of suckers, a vigorous growth habit, pink flowers, the ability to serve well as rootstock that is compatible with all other cherries, and the ability to propagate well by softwood cuttings, stool beds and meristem cuttings in vitro. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct rootstock variety of Prunus named ‘VSV-1’ that is characterized by vigor and strength, the ability to serve well as rootstock that is compatible with peach and plum, resistance to drought, cold and heat and the ability to propagate well by stool beds in addition to other methods. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct rootstock variety of Prunus named ‘VVA-1’ that is characterized by a dwarf habit, resistance to low temperatures, the ability to serve well as rootstock that is compatible with other crops, and the ability to propagate well. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct rootstock variety of Prunus named ‘LC-52’ that is characterized by, the ability to serve well as rootstock that is compatible with all other cherries, wide leaves, semi-dwarf habit and hardiness to ?15° Centigrade. In combination these traits set the new cultivar apart from all other existing varieties of Prunus rootstock.

Abstract: A new and distinct Interspecific Prunus hybrid plant used as a rootstock that exhibits dwarf-like productive growth.

Abstract: A new and distinct variety of Myrobalan tree (Prunus cerasifera). Its novelty consists of the following unique combination of features that are desirable in a new interstock when growing cherries: 1. Decreasing the height of the cherry tree for more economical harvesting. 2. Providing earlier production of fuit when growing cherries with the new interstock variety on Citation Rootstock. 3. Increasing the number of rootstocks available for cherries. 4. Improving the opportunity to match soil type with the desired rootstock by using an interstock.

Abstract: A new and distinct cultivar of Prunus mahaleb is provided. The new cultivar is particularly well suited for serving as an understock during cherry production. A number of advantages are provided when compared to the standard Mahaleb rootstock. The cultivar is readily amenable to vegetative propagation (e.g., by the use of softwood cuttings), and exhibits improved resistance to Phytophthora spp. When used with a ‘Bing’ cherry scion, increased yields have been observed. The new cultivar when grown without use as an understock forms a tree that is intermediate in size and forms more fine wood when compared to the ‘UCMH 56’ and ‘UCMH 59’ cultivars that were products of the same research program.

Abstract: A new and distinct Prunus rootstock compatible with other Prunus varieties and producing trees with reduced growth, hardiness to frost and high productivity.

Abstract: A new and distinct hybrid peach-almond plant used as a rootstock that exhibits root-knot nematode resistance, red leaves, and compatibility with peach, nectarine, almond, and plum varieties.

Abstract: A new and distinct cultivar of Prunus plant named ‘Weiroot 720’, characterized by its upright plant habit; weak vegetative growth and low vigor; good soil adaptation; and as a rootstock, weak vegetative growth imparts uniformity, higher yield and larger fruit size to the scion plant.

Abstract: Prunus pumila variety `Rhenus 2` is a dwarfing rootstock that is compatible with Prunus varieties such as peach, nectarine, and apricot, producing dwarf trees with no significant reduction in fruit size, early yield, high yield efficiency, uniform fruit size, high frost hardiness, no suckering, and good soil adaptation.

Abstract: The new ‘HBOK 27’ rootstock is an ‘OP-F2’ plant from an F1 plant of an intraspecific hybrid between two peach parents that is useful as a commercial under-stock for peach and nectarine cultivars. The ‘HBOK 27’ rootstock has been successfully propagated clonally by leafy cuttings and tissue culture. The ‘HBOK 27’ rootstock is graft compatible with peach scion cultivars, and confers moderate vigor control to the compound trees. Peach trees grown on the ‘HBOK 27’ rootstock are productive, require less pruning than trees on grown on the standard rootstock ‘Nemaguard’, and produce fewer root suckers than ‘Nemaguard’. The ‘HBOK 27’ rootstock shows moderate resistance to root knot nematode [Meloidogyne incognita (race 1) isolate ‘Beltran’] that is slightly less than that of the standard rootstock ‘Nemaguard’.

Abstract: Disclosed is a new and distinct variety of prunus rootstock useful for peach, plum, nectarine, apricot, cherry and potentially other scionic and stone fruit varieties; and particularly useful for plum varieties such as ‘Crimson Glow’ and/or ‘Black Splendor’ and/or ‘Jo Anna Reds’. The present variety appears has considerable tolerance to infection by Armillaria (aka Oak Root Rot) which is a common root fungi, infecting many soils in California, particularly where oak trees have been grown.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO1,’ characterized by its upright plant habit and slow growth; good adaptation at hot and dry conditions; and as a rootstock the slow vegetative growth imparts uniformity, higher yield and better fertility to the grafted variety as compared to a standard rootstock such as Gisela 5, F12/1 and Mazzard.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO2,’ characterized by its weeping plant habit and typical slow growth; good adaptation at hot and dry conditions; and as a rootstock, slow vegetative growth that imparts uniformity, higher yield and better fertility to the grafted variety as compared to a standard rootstock such as Gisela 5, F12/1 and Mazzard.

Abstract: A new and distinct cultivar of Prunus plant named ‘STO3,’ characterized by its upright plant habit and typical hybrid growth; good adaptation to hot and dry conditions; and as a rootstock, slow vegetative growth imparts uniformity, higher yield and better fertility to the grafted variety as compared to a standard rootstock such as Gisela 5, F12/1 and Mazzard.

Abstract: A new and distinct Prunus hybrid plant used as a rootstock for cherries that induces precosity and flat branching of the grafted plant.

Abstract: A new and distinct Prunus hybrid plant used as a rootstock for cherries that induces precocity and flat branching of the grafted plant.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.

Abstract: A new cherry tree variety suitable for use as rootstock.