The process in which the identity of a floral organ primordium is specified. Identity is considered to be the aggregate of characteristics by which a structure is recognized.

Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.

Any process that modulates the number of floral organs formed in a floral whorl.

The process whose specific outcome is the progression of the floral organ over time, from its formation to the mature structure.

The process whose specific outcome is the progression of the ovule over time, from its formation to the mature structure. The ovule is the structure in seed plants enclosing the female gametophyte, and is composed of the nucellus, one or two integuments, and the funiculus; it develops into the seed.

The process whose specific outcome is the progression of the embryo sac over time, from its formation to the mature structure. The process begins with the meiosis of the megasporocyte to form four haploid megaspores. Three of the megaspores disintegrate, and the fourth undergoes mitosis giving rise to a binucleate syncytial embryo sac. The two haploid nuclei migrate to the opposite poles of the embryo sac and then undergo two rounds of mitosis generating four haploid nuclei at each pole. One nucleus from each set of four migrates to the center of the cell. Cellularization occurs, resulting in an eight-nucleate seven-celled structure. This structure contains two synergid cells and an egg cell at the micropylar end, and three antipodal cells at the other end. A binucleate endosperm mother cell is formed at the center. The two polar nuclei fuse resulting in a mononucleate diploid endosperm mother cell. The three antipodal cells degenerate.

The process in which a meristem becomes determinate (i.e. ceases to produce lateral organs and may or may not terminally differentiate).

The process in which the identity of a floral organ primordium is specified. Identity is considered to be the aggregate of characteristics by which a structure is recognized.

The process in which a floral organ primordium acquires the carpel identity. Identity is considered to be the aggregate of characteristics by which a structure is recognized.

The process in which a floral meristem becomes determinate (i.e. ceases to produce lateral organs and may or may not terminally differentiate).

The process whose specific outcome is the progression of the seed over time, from its formation to the mature structure. A seed is a propagating organ formed in the sexual reproductive cycle of gymnosperms and angiosperms, consisting of a protective coat enclosing an embryo and food reserves.

The process whose specific outcome is the progression of the floral organ over time, from its formation to the mature structure.

The process that gives rise to floral organs. This process pertains to the initial formation of a structure from unspecified parts.

The process that contributes to the act of giving rise to the stamen. This process pertains to the initial formation of a structure from unspecified parts.

The process in which the anatomical structures of the floral whorl are generated and organized.

The process that contributes to the act of creating the structural organization of the floral whorl. This process pertains to the physical shaping of a rudimentary structure.

Any process that modulates the frequency, rate or extent of meristem development, the biological process whose specific outcome is the progression of the meristem over time, from its formation to the mature structure.

The process whose specific outcome is the progression of the integument over time, from its formation to the mature structure. Integument is one of the layers of tissue that usually covers the ovule, enveloping the nucellus and forming the micropyle at the apex.

The increase in size or mass of a seed. A seed is a propagating organ formed in the reproductive cycle of a spermatophyte, derived from the ovule and enclosing an embryo.

The process involved in the specification of cell identity. Once specification has taken place, a cell will be committed to differentiate down a specific pathway if left in its normal environment.

The process whose specific outcome is the progression of the flower over time, from its formation to the mature structure. The flower is the reproductive structure in a plant, and its development begins with the transition of the vegetative or inflorescence meristem into a floral meristem.

Any process that activates or increases the frequency, rate or extent of flower development.

The process involved in transforming a meristem that produces vegetative structures, such as leaves, into a meristem that produces reproductive structures, such as a flower or an inflorescence.

The process whose specific outcome is the progression of the flower over time, from its formation to the mature structure. The flower is the reproductive structure in a plant, and its development begins with the transition of the vegetative or inflorescence meristem into a floral meristem.

A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.