Syngenta Participations Ag

Clemson University

Xingping Zhang

James P Brusca

Tom Vare Williams

Richard Hassell

Thomas Vare Williams

Shawna Daley

Billy B Rhodes

Tetraploid watermelon inbreds are disclosed. The invention relates to the seeds and plants of the tetraploid watermelon inbreds, the methods of propagating the tetraploid inbreds through seeds and tissue culture. The invention also relates to methods of producing the triploid seedless watermelon seeds and plants by crossing the tetraploid inbreds with diploid watermelon inbreds, and to the triploid plants produced therefrom.

Tetraploid watermelons producing small fruits

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.

Methods and compositions for the inhibition of meristematic growth on cucurbit rootstock

A tetraploid watermelon inbred 4XASSS4 is disclosed. The invention relates to the seeds and plants of tetraploid watermelon inbred 4XASSS4, the methods of propagating the tetraploid inbred 4XASSS4 through seeds and tissue culture. The invention also relates to methods of producing the triploid seedless watermelon seeds and plants by crossing inbred 4XASSS4 with diploid watermelon inbreds, and to the triploid plants produced therefrom. The invention further relates to the methods of developing new tetraploid lines by using tetraploid inbred 4XASSS4 as breeding material, and to tetraploid watermelon seeds and plants produced therefrom.

Inbred tetraploid watermelon line 4XASSS4

The present invention provides a novel watermelon variety designated SP-6, and method for pollinating seedless watermelon plants. The present invention also provides methods for producing triploid, seedless watermelon fruit.

Watermelon pollenizer SP-6

The present invention provides a novel watermelon variety designated SP-5, and method for pollinating seedless watermelon plants. The present invention also provides methods for producing triploid, seedless watermelon fruit.

Watermelon pollenizer SP-5

Tetraploid watermelon producing small fruits

The present invention provides a novel watermelon line designated SP-4, and method for pollinating seedless watermelon plants. The present invention also provides methods for producing triploid, seedless watermelon fruit.

Watermelon pollenizer SP-4

An enhanced, diploid pollenizer watermelon plant and method used to maximize the yield of triploid seedless watermelons per area. The enhanced pollenizer watermelon plant of the invention is either a hybrid variety, an open-pollinated variety or a synthetic variety, that exhibits the characteristics of small leaves and fruit with a brittle rind that splits when the fruit is overripe or breaks when relatively small physical forces are applied. In one embodiment, the watermelon plant of the invention is also characterized by extended flowering duration, thereby increasing the number of triploid watermelon flowers that are pollinated and set fruit. The method for producing a seedless watermelon fruit, includes the steps of providing a pollenizer diploid watermelon plant, extending the duration of flowering of the pollenizer plant while reducing the number of such plants needed to pollinate the same number of triploid watermelon plants, and maximizing dispersal of the pollenizer watermelon plant throughout the field of triploid watermelon plants.

Enhanced pollenizer and method for increasing seedless watermelon yield

A tetraploid watermelon inbred 90-4194 is disclosed. The invention relates to the seeds and plants of tetraploid watermelon inbred 90-4194, the methods of propagating the tetraploid inbred 90-4194 through seeds and tissue culture. The invention also relates to methods of producing the triploid seedless watermelon seeds and plants by crossing inbred 90-4194 with diploid watermelon inbreds, and to the triploid plants produced therefrom. The invention further relates to the methods of developing new tetraploid lines by using tetraploid inbred 90-4194 as breeding material, and to tetraploid watermelon seeds and plants produced therefrom.

Triploid hybrid watermelon plants

An enhanced, diploid pollenizer watermelon plant and method used to maximize the yield of triploid seedless watermelons per area. The enhanced pollenizer watermelon plant of the invention is either a hybrid variety, an open-pollinated variety or a synthetic variety, that exhibits the characteristics of small leaves and fruit with a brittle rind that splits when the fruit is overripe or breaks when relatively small physical forces are applied. The watermelon plant of the invention is also preferably characterized by extended flowering duration, thereby increasing the number of triploid watermelon flowers that are pollinated and set fruit. The method for producing a seedless watermelon fruit, includes the steps of providing a pollenizer diploid watermelon plant, extending the duration of flowering of the pollenizer plant while reducing the number of such plants needed to pollenize the same number of triploid watermelon plants, and maximizing dispersal of the pollenizer watermelon plant throughout the field of triploid watermelon plants.

Method for producing triploid, seedless watermelon

An enhanced, diploid pollenizer watermelon plant and method used to maximize the yield of triploid seedless watermelons per area. The enhanced pollenizer watermelon plant of the invention is either a hybrid variety, an open-pollinated variety or a synthetic variety, that exhibits the characteristics of lacy vine, small leaves, prolific male flowers, small fruit with a brittle rind that splits when the fruit is overripe or breaks when relatively small physical forces are applied. The watermelon plant of the invention is also characterized by extended flowering duration, thereby increasing the number of triploid watermelon flowers that are pollinated and set fruit. The method for producing a seedless watermelon fruit, includes the steps of providing a pollenizer diploid watermelon plant, extending the duration of flowering of the pollenizer plant while reducing the number of such plants needed to pollenize the same number of triploid watermelon plants, and maximizing dispersal of the pollenizer watermelon plant throughout the field of triploid watermelon plants.

Inbred tetraploid watermelon line 90-4194

A method is provided for efficiently producing superior hybrid seed and plants. The method uses a genetic mechanism for ensuring high percentages of natural cross-pollination and combines this mechanism with a genetically conferred morphological trait that allows recognition of desirable genotypes at an early development stage. The genetic mechanism for ensuring high percentages of cross-pollination is male-sterile, a recessive genetic mutant. Thus, the method includes protocols for developing genetic male-sterile (ms) lines. The genetically conferred morphological trait that allows recognition of desirable genotypes at an early development stage is a seedling marker. Thus, the method includes protocols for developing genetic male-sterile (ms) lines with a seedling marker. In watermelon for example, the seedling marker can be a conditionally unfit mutant such as juvenile-albino (ja).

Growing community of inventors

Woodland, CA, United States of America

Xingping Zhang