2006-07-15 16:46:40 · 8 answers · asked by Anonymous in Home & Garden ➔ Garden & Landscape
they dont, they come from the breeding of grapes that cant produce fertile offspring. its kinda like when a horse mates with a donkey, you get a mule. an animal that cant reproduce, but as long as horses and donkeys keep going at it, we never run out of mules. and as long as the right grapevines are fertilized by the right other grapevines, we can have seedless grapes.
2006-07-15 16:51:48 · answer #1 · answered by hellion210 6 · 2⤊ 1⤋
After some hybrid breeding, they came up with a combonation that produced seedless grapes. After that they come from cuttings. A piece of a vine or branch is cut off, dipped in rooting hormone and then placed in moist dirt so that roots and leaves form. Because they come from cuttings, new grapevines are essentially clones of the vine they were cut from.
FYI: Seedless grapes actually do contain seeds at some point. But a genetic error prevents the seeds from forming hard outer coats like normal seeds do.
Quote taken from another site: "Grape breeders create new seedless plants by placing the pollen of a seedless grape onto the flowers of a grape variety that has seeds. They then cut open and inspect the fruit of every single plant that grows from this match. The breeders are looking for seeds -- some plants will have seeds in their fruit and others won't.
When they find a plant that has no seeds, or maybe just has very tiny traces of seeds that you wouldn't be able to taste, the grape breeders use it to make more seedless plants. One way is to cut off small pieces of the seedless plant's vine and place it in special growing conditions in a greenhouse. Eventually, the pieces of vine will grow roots and become new, individual plants. This technique is called propagation. "
2006-07-16 00:34:50 · answer #2 · answered by MrEkitten 3 · 0⤊ 0⤋
They have been specially breed to be seedless (ie do not occur naturally). So growers reproduce the plants vegetatively by taking cuttings from the stem and stimulating them to grow roots. This is also how wine grape plants are reproduced.
2006-07-15 23:54:48 · answer #3 · answered by grape_oe 2 · 0⤊ 0⤋
The seeds are genetically engineered and have to be purchased by farmers from a company every year for replanting.
2006-07-15 23:50:02 · answer #4 · answered by Cat Loves Her Sabres 6 · 0⤊ 0⤋
They're a hybrid species, or something like that.
2006-07-15 23:48:43 · answer #5 · answered by Sarah 4 · 0⤊ 0⤋
They don't, they are hybrid and people are the ones who create more.
2006-07-15 23:50:54 · answer #6 · answered by ttigresa 3 · 0⤊ 0⤋
plants can grow from stems also. They do not necessarily need seeds.
2006-07-15 23:50:00 · answer #7 · answered by SamWiseGamgee 3 · 0⤊ 0⤋
very good question but i don't know the answer
2006-07-15 23:56:31 · answer #8 · answered by shizzlechit 5 · 0⤊ 0⤋