Embryonic plant enclosed in a protective outer covering
For other uses, see Seed (disambiguation).
Photomicrograph of various seeds
In botany, a seed is a plant embryo and food reserve enclosed in a protective outer covering called a seed coat (testa). More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber. Seeds are the product of the ripened ovule, after the embryo sac is fertilized by sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote and grows within the mother plant to a certain size before growth is halted.
The formation of the seed is the defining part of the process of reproduction in seed plants (spermatophytes). Other plants such as ferns, mosses and liverworts, do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological niches on land, from forests to grasslands both in hot and cold climates.
In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate it. Many structures commonly referred to as "seeds" are actually dry fruits. Sunflower seeds are sometimes sold commercially while still enclosed within the hard wall of the fruit, which must be split open to reach the seed. Different groups of plants have other modifications, the so-called stone fruits (such as the peach) have a hardened fruit layer (the endocarp) fused to and surrounding the actual seed. Nuts are the one-seeded, hard-shelled fruit of some plants with an indehiscent seed, such as an acorn or hazelnut.
SEED is a block cipher developed by the Korea Information Security Agency (KISA). It is used broadly throughout South Korean industry, but seldom found...
A seed plant or spermatophyte (lit. 'seed plant'; from Ancient Greek σπέρματος (spérmatos) 'seed', and φυτόν (phytón) 'plant'), also known as a phanerogam...
Look up seeding in Wiktionary, the free dictionary. The term seeding and related terms such as seeded are used in several different contexts: Sowing,...
Chia seeds are the edible seeds of Salvia hispanica, a flowering plant in the mint family (Lamiaceae) native to central and southern Mexico, or of the...
A lotus seed or lotus nut is the seed of plants in the genus Nelumbo, particularly the species Nelumbo nucifera. The seeds are used in Asian cuisine and...
pumpkin seed, also known in North America as a pepita (from the Mexican Spanish: pepita de calabaza, 'little seed of squash'), is the edible seed of a pumpkin...
Mustard seeds are the small round seeds of various mustard plants. The seeds are usually about 1 to 2 millimetres (1⁄32 to 3⁄32 in) in diameter and may...
Poppy seed is an oilseed obtained from the opium poppy (Papaver somniferum). The tiny, kidney-shaped seeds have been harvested from dried seed pods by...
A sunflower seed is a seed from a sunflower (Helianthus annuus). There are three types of commonly used sunflower seeds: linoleic (most common), high...
In spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have limited mobility and rely...
The doctrine of the serpent seed, also known as the dual-seed or the two-seedline doctrine, is a controversial and fringe Christian religious belief which...
A random seed (or seed state, or just seed) is a number (or vector) used to initialize a pseudorandom number generator. For a seed to be used in a pseudorandom...
Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation, mitigate hail or disperse fog. The usual objective...
Seed money, also known as seed funding or seed capital, is a form of securities offering in which an investor puts capital in a startup company in exchange...
The Seeds are an American psychedelic garage rock band that formed in Los Angeles, California in 1965, best known for their highest-charting single "Pushin'...
Dark Seed or Darkseed may refer to: Dark Seed (video game), a 1992 horror adventure game Dark Seed II, a 1995 sequel to the 1992 adventure game Darkseed...
ensures that seeds will be distributed evenly. The seed drill sows the seeds at the proper seeding rate and depth, ensuring that the seeds are covered...
bad seed in Wiktionary, the free dictionary. Bad Seed(s) or The Bad Seed(s) may refer to: The Bad Seed, a 1954 novel by William March The Bad Seed (play)...
Star seed or starseed may refer to: Starseed, a 1973 book by Timothy Leary Star Seed, a 2021 single by Loona Starseed (band), South-African/British rock...
Seed of Chucky is a 2004 black comedy slasher film, the fifth installment of the Child's Play series, and sequel to 1998's Bride of Chucky as well as the...
Crack seed is a category of snacks that originated in China. It is highly popular in many regions, such as Hawaii. Crack seed are preserved fruits that...
A seeder is a stamp-type leatherworking tool used in leather carving. It is predominantly used in floral designs to represent the seeds in the center...
Seed trees are trees left after reproduction cutting to provide seeds for natural regeneration in the seed-tree method. These trees serve as both the gene...
dictionary. Seed predation, often referred to as granivory, is a type of plant-animal interaction in which granivores (seed predators) feed on the seeds of plants...
Black seed may refer to: Nigella sativa, a plant with stubby, 2mm seeds Guizotia abyssinica, a plant with elongate, 5mm seeds Black Seed (EP), an EP by...
A seed treatment is a treatment of the seed with either chemical agents or biological or by physical methods. Usually done to provide protection to the...
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