|Series||CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches -- no. 13057, CIHM/ICMH microfiche series -- no. 13057|
|The Physical Object|
|Pagination||1 microfiche (9 fr.)|
Polyembryony is the phenomenon of two or more embryos developing from a single fertilized egg.    Due to the embryos resulting from the same egg, the embryos are identical to one another, but are genetically diverse from the parents. Opuntia ficus-indica (prickly pear) is a species of cactus that has long been a domesticated crop plant grown in agricultural economies throughout arid and semiarid parts of the world. Likely having originated in Mexico, O. ficus-indica is the most widespread and most commercially important cactus. Common English names for the plant and its fruit are Indian fig opuntia, Barbary fig, cactus Clade: Tracheophytes. Upon polyembryony and its morphology in Opuntia vulgaris / W.F. Ganong Ganong, William F. (William Francis), [ Book, Microform: ] View online (access conditions) At National Library. ADVERTISEMENTS: Read this article to learn about the apomixis and polyembryony in flowering plants! Apomixis (Gk. apo- without, mixis- mixing) is a mode of reproduction which does not involve formation of zygote through gametic fusion. It is, therefore, akin to asexual reproduction. In plants apomixis commonly mimics sexual reproduction but produces seeds without fertilisation, e.g., [ ].
Upon Polyembryony and Its Morphology in Opuntia vulgaris. Vol Page The Orientation of the Plant Egg and Its Ecological Significance. Vol Page Search Inside This Book: Results For: Click/Shift+Click pages to select for download. zoom out Zoom zoom in. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Polyembryony has been classified as either false or true. False polyembryony involves fusion of two or more nucelli or development of two or more embryo sacs within the same nucellus. In true polyembryony the additional embryos arise in the embryo sac either by cleavage of . A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the : Kundan Kishore.
Polyembryony, a condition in which two or more embryos develop from a single fertilized egg, forming what in humans is known as identical twins.A common phenomenon in many plant and animal species, polyembryony occurs regularly in the nine-banded armadillo, which usually gives birth to four identical young. Striking examples may be found among parasitic insects of the order Hymenoptera. Current issues are now on the Chicago Journals website. Read the latest issue. ADVERTISEMENTS: In this article we will discuss about Polyembryony in Various Groups of Gymnosperms. After reading this article you will learn about: 1. Meaning of Polyembryony 2. Types of Polyembryony 3. Polyembryony in Various Groups of Gymnosperms. Meaning of Polyembryony: The phenomenon of the development of more than one embryo in one ovule, seed or [ ]. Upon polyembryony and its morphology in Opuntia vulgaris [microform] / 5 The St. Croix of the northeastern boundary [microform] 4 / 5 Is littorina litorea introduced or indiggenous?4/5(5).