The invention provides methods for producing seeds in watermelon. In one embodiment methods are provided comprising grafting of a seed parent onto a stress tolerant rootstock, pollinating the seed parent with pollen from a pollen donor, and cultivating the seed parent until seed is formed. In specific embodiments, triploid seeds produced by a method of the invention are rendered conspicuously distinguishable from tetraploid seeds, and thus readily selected manually or by an automated machine. Methods for increasing seed yield and/or quality are also provided.

Plant cell fate and development is altered by treating cells with cellular reprogramming factors. Embryogenesis inducing morphogenic developmental genes are used as cellular reprogramming factors, specifically comprising polypeptides or polynucleotides encoding gene products for generating doubled haploids or haploid plants from gametes. Maize microspores treated by contacting the isolated cells with an exogenous purified, recombinant embryogenesis inducing morphogenic developmental gene polypeptide results in embryogenesis. The gametes of a maize plant develop into embryoids when transformed with a genetic construct including regulatory elements and structural genes capable of acting in a cascading fashion to alter cellular fate of plant cells. Developmental morphogenic proteins expressed from a genetic construct are used for ex situ treatment methods and for in planta cellular reprogramming.

Plant cell fate and development is altered by treating cells with cellular reprogramming factors. Embryogenesis inducing morphogenic developmental genes are used as cellular reprogramming factors, specifically comprising polypeptides or polynucleotides encoding gene products for generating doubled haploids or haploid plants from gametes. Maize microspores treated by contacting the isolated cells with an exogenous purified, recombinant embryogenesis inducing morphogenic developmental gene polypeptide results in embryogenesis. The gametes of a maize plant develop into embryoids when transformed with a genetic construct including regulatory elements and structural genes capable of acting in a cascading fashion to alter cellular fate of plant cells. Developmental morphogenic proteins expressed from a genetic construct are used for ex situ treatment methods and for in planta cellular reprogramming.

The invention relates to Spathiphyllum plants having reduced pollen content, obtained by a method, comprising the steps of providing a tetraploid Spathiphyllum parent and a diploid Spathiphyllum parent, and crossing these tetraploid and diploid parents to produce the Spathiphyllum plants having reduced pollen content. The invention also relates to a method for producing Spathiphyllum plants having reduced pollen content.

The present invention relates to the provision of technical means such as nucleic acids which, after transcription or after expression in a plant, are suitable for mediating the property of a haploid inductor or for increasing the induction capability of a haploid inductor, as well as methods and uses for the production and identification of non-transgenic and transgenic plant haploid inductors, as well as the improvement of existing plant haploid inductors.

The present invention relates to the provision of technical means such as nucleic acids which, after transcription or after expression in a plant, are suitable for mediating the property of a haploid inductor or for increasing the induction capability of a haploid inductor, as well as methods and uses for the production and identification of non-transgenic and transgenic plant haploid inductors, as well as the improvement of existing plant haploid inductors.

The disclosure provides a new and distinct hybrid variety of cucumber, NUN 51024 CUP as well as seeds and plants and fruits thereof.

The invention relates to a dominant mutation in the TDM gene leading to the production of 2n gametes in plants, to the plants comprising said mutation, and to their use in plant breeding. The invention relates also to plants in which the dominant mutation in the TDM gene is combined with the inactivation of a gene involved in meiotic recombination in plants and a gene involved in the monopolar orientation of the kinetochores during meiosis. These plants which produce apomeiotic gametes are also useful in plant breeding.

The invention relates to a dominant mutation in the TDM gene leading to the production of 2n gametes in plants, to the plants comprising said mutation, and to their use in plant breeding. The invention relates also to plants in which the dominant mutation in the TDM gene is combined with the inactivation of a gene involved in meiotic recombination in plants and a gene involved in the monopolar orientation of the kinetochores during meiosis. These plants which produce apomeiotic gametes are also useful in plant breeding.

According to the invention, there is provided seed and plants of the hybrid corn variety designated CH465900. The invention thus relates to the plants, seeds and tissue cultures of the variety CH465900, and to methods for producing a corn plant produced by crossing a corn plant of variety CH465900 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH465900.