A composite orange tree having a fruiting cultivar scion grafted to a citrus-greening resistant, or a salinity-resistant rootstock, or a rootstock having both citrus-greening and salinity resistance, is described herein, as are methods of growing such a composite orange tree.

The invention provides methods of inhibiting the growth of a shoot apical meristem of a cucurbit rootstock plant, comprising contacting a shoot apical meristem of the cucurbit rootstock plant with an effective amount of a composition comprising one or more fatty alcohols, thereby inhibiting the growth of the shoot apical meristem of the cucurbit rootstock plant. The present invention further provides methods for preparing and producing cucurbit rootstock plants for grafting and methods for grafting. Additionally provided are cucurbit rootstock plants and plant parts and grafted cucurbit plants produced by the methods of the invention.

The invention provides methods of inhibiting the growth of a shoot apical meristem of a cucurbit rootstock plant, comprising contacting a shoot apical meristem of the cucurbit rootstock plant with an effective amount of a composition comprising one or more fatty alcohols, thereby inhibiting the growth of the shoot apical meristem of the cucurbit rootstock plant. The present invention further provides methods for preparing and producing cucurbit rootstock plants for grafting and methods for grafting. Additionally provided are cucurbit rootstock plants and plant parts and grafted cucurbit plants produced by the methods of the invention.

Growing systems including double-walled growing devices, and methods of making and using the same are provided. Growing devices include two sheets of material, a sprouting layer and a rooting layer, strategically bonded together to form containers for growing plants. Each container includes openings in the layers to allow the plants to grow out of their containers and to allow roots to access water through the rooting layer. The two layers can be formed into a cylinder where the center of the cylinder provides a channel for watering such that the roots grow into that channel. Deployed as a flat sheet of containers, the device can include a third layer to provide a water channel between the rooting layer and the third layer. Growing systems include the device and can also include a system to provide water thereto, and an enclosure around the device for providing an overpressure.

Growing systems including double-walled growing devices, and methods of making and using the same are provided. Growing devices include two sheets of material, a sprouting layer and a rooting layer, strategically bonded together to form containers for growing plants. Each container includes openings in the layers to allow the plants to grow out of their containers and to allow roots to access water through the rooting layer. The two layers can be formed into a cylinder where the center of the cylinder provides a channel for watering such that the roots grow into that channel. Deployed as a flat sheet of containers, the device can include a third layer to provide a water channel between the rooting layer and the third layer. Growing systems include the device and can also include a system to provide water thereto, and an enclosure around the device for providing an overpressure.

A composite orange tree having a fruiting cultivar scion grafted to a citrus-greening resistant, or a salinity-resistant rootstock, or a rootstock having both citrus-greening and salinity resistance, is described herein, as are methods of growing such a composite orange tree.

A composite orange tree having a fruiting cultivar scion grafted to a citrus-greening resistant, or a salinity-resistant rootstock, or a rootstock having both citrus-greening and salinity resistance, is described herein, as are methods of growing such a composite orange tree.

The present disclosure relates, according to some embodiments, to pathogen resistant citrus compositions, organisms, systems, and methods. For example, a composition may comprise a peptide (e.g., a defensin peptide) and/or a nucleic acid (e.g., a defensin nucleic acid). A pathogen resistant citrus plant may comprise, in some embodiments, a defensin peptide and/or an expressable nucleic acid encoding a defensin peptide.

A grafting device includes: a transfer unit configured to transfer, in a predetermined direction, a grafted seedling that is in a state where a cut surface of a graft and a cut surface of a rootstock are closely attached to each other; a tape supply unit configured to arrange a tape on a transfer path of the grafted seedling in such a manner that the tape is allowed to be pulled out; a pull-out member configured to transfer through the transfer path in advance of the grafted seedling to pull out the tape from the tape supply unit, and sandwich a closely attached part of the grafted seedling between a first part of the tape and a second part facing the first part; and a welding unit configured to cover a periphery of the closely attached part of the grafted seedling with the tape and weld the tape.

Provided is a novel plant body comprising a plant tissue of a plant belonging to the family Solanaceae, Brassicaceae, Lamiaceae, or Orobanchaceae, wherein graft incompatibility is avoided or suppressed by using a graft medium between different-family plants.