https://wikimd.org/index.php?action=history&feed=atom&title=SeedSeed - Revision history2026-05-13T09:23:11ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Seed&diff=5831734&oldid=prevPrab: CSV import2024-05-27T01:41:08Z<p>CSV import</p>
<p><b>New page</b></p><div>[[File:Разнообразие семян.jpg|thumb|Разнообразие семян|right]] [[File:Seed Development Cycle.svg|thumb|Seed Development Cycle|left]] [[File:Ovule-Gymno-Angio-en.svg|thumb|Ovule-Gymno-Angio-en.svg]] [[File:Ginkgo embryo and gametophyte.jpg|thumb|Ginkgo embryo and gametophyte|right]] [[File:Dycotyledon seed diagram-en.svg|thumb|Dycotyledon seed diagram-en|right]] [[File:Budowa nasienia-dwuliscienne.svg|thumb|Budowa nasienia-dwuliscienne.svg]] {{Short description|Embryonic plant enclosed in a protective outer covering}}<br />
{{About|the embryonic plant|other uses|Seed (disambiguation)}}<br />
{{Use dmy dates|date=October 2023}}<br />
{{Use British English|date=October 2023}}<br />
{{Taxobox<br />
| name = Seed<br />
| image = <br />
| image_caption = <br />
| regnum = Plantae<br />
| unranked_divisio = [[Angiosperms]]<br />
| unranked_classis = [[Eudicots]]<br />
| unranked_ordo = [[Rosids]]<br />
| ordo = [[Fabales]]<br />
| familia = [[Fabaceae]]<br />
| genus = [[Pisum]]<br />
| species = [[Pisum sativum]]<br />
}}<br />
A '''seed''' is an [[embryonic plant]] enclosed in a protective outer covering. The formation of the seed is part of the process of [[reproduction]] in [[seed plants]], the [[spermatophytes]], including the [[gymnosperms]] and [[angiosperms]]. Seeds are the product of the ripened [[ovule]], after [[fertilization]] by [[pollen]] and some growth within the mother plant. The embryo is developed from the [[zygote]] and the seed coat from the [[integuments]] of the ovule.<br />
== Structure ==<br />
Seeds have three main parts: the [[embryo]], the [[endosperm]], and the [[seed coat]]. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches. The seed coat consists of one or more protective layers that encase the seed.<br />
== Types of Seeds ==<br />
Seeds can be classified into two types based on the number of [[cotyledons]] present:<br />
* [[Monocotyledon]]s (monocots) - Seeds with one cotyledon.<br />
* [[Dicotyledon]]s (dicots) - Seeds with two cotyledons.<br />
== Seed Dispersal ==<br />
Seed dispersal is the movement or transport of seeds away from the parent plant. Plants have evolved various mechanisms for seed dispersal, including:<br />
* [[Wind dispersal]]<br />
* [[Water dispersal]]<br />
* [[Animal dispersal]]<br />
* [[Explosive dispersal]]<br />
== Germination ==<br />
[[Germination]] is the process by which a seed develops into a new plant. It involves the reactivation of metabolic pathways, leading to the growth of the embryo into a seedling. Factors affecting germination include water, oxygen, temperature, and light.<br />
== Importance ==<br />
Seeds are of immense biological and economic importance. They are a primary source of human and animal nutrition, providing essential nutrients such as [[proteins]], [[fats]], and [[carbohydrates]]. Seeds are also crucial for [[agriculture]], [[horticulture]], and [[forestry]].<br />
== See also ==<br />
* [[Seed bank]]<br />
* [[Seed dormancy]]<br />
* [[Seed predation]]<br />
* [[Seedless fruit]]<br />
* [[Seedling]]<br />
== References ==<br />
{{Reflist}}<br />
{{Commons category|Seeds}}<br />
{{Wikispecies|Seed}}<br />
[[Category:Plant reproduction]]<br />
[[Category:Plant morphology]]<br />
[[Category:Seeds| ]]<br />
[[Category:Embryology]]<br />
{{botany-stub}}</div>Prab