Ad
related to: how to cross pollinationgenerationgenius.com has been visited by 10K+ users in the past month
- K-8 Science Lessons
Used in over 30,000 schools.
Loved by teachers and students.
- Loved by Teachers
Check out some of the great
feedback from teachers & parents.
- DIY Science Activities
Do-It-Yourself activities for kids.
Using common classroom materials.
- K-8 Standards Alignment
Videos & lessons cover most
of the standards for every state
- K-8 Science Lessons
Search results
Results from the WOW.Com Content Network
Cross-pollination, where pollen from one plant can only fertilize a different plant; Asexual propagation (e.g. runners from strawberry plants) where the new plant is genetically identical to its parent; Apomixis (self-cloning), where seeds are produced asexually and the new plant is genetically identical to its parent
Plants adapted for cross-pollination have several mechanisms to prevent self-pollination; the reproductive organs may be arranged in such a way that self-fertilisation is unlikely, or the stamens and carpels may mature at different times. [8] Self-pollination occurs when pollen from one flower pollinates the same flower or other flowers of the ...
Allogamy or cross-fertilization is the fertilization of an ovum from one individual with the spermatozoa of another. [ 1 ] [ 2 ] By contrast, autogamy is the term used for self-fertilization. [ 1 ] In humans, the fertilization event is an instance of allogamy.
Cross-pollination involves the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant. The main characteristics which facilitate cross-pollination are: Herkogamy : Flowers possess some mechanical barrier on their stigmatic surface to avoid self-pollination, e.g. presence of gynostegium and pollinia ...
Self-pollination is a form of pollination in which pollen arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms) of the same plant. The term cross-pollination is used for the opposite case, where pollen from one plant moves to a different plant.
The stamen of a corn plant, showing the pollen.. Pollen drift is the accidental cross-pollination of different varieties of crops through natural dispersal methods. The term is used almost exclusively when referring to strains of corn, and especially refers to the crossing of genetically modified crops with those that are not.
The progeny from that cross would then be tested for yield (selection, as described above) and mildew resistance and high-yielding resistant plants would be further developed. Plants may also be crossed with themselves to produce inbred varieties for breeding. Pollinators may be excluded through the use of pollination bags.
However, as opposed to 'complete' or 'absolute' SI, in CSI, self-pollination without the presence of competing cross pollen, results in successive fertilization and seed set; [45] in this way, reproduction is assured, even in the absence of cross-pollination. CSI acts, at least in some species, at the stage of pollen tube elongation, and leads ...
Ad
related to: how to cross pollinationgenerationgenius.com has been visited by 10K+ users in the past month