Re: Hybridizing Question Please
- Subject: Re: [iris-photos] Hybridizing Question Please
- From: A*@aol.com
- Date: Sun, 30 Apr 2006 21:54:25 EDT
In a message dated 4/30/2006 5:33:54 P.M. Central Standard Time,
nakihee@gmail.com writes:
<<If you combine the pollen from 2 parent plants onto the stigmatic lip of one bud, do both affect the pollination or does only one little individual piece of pollen actually cause the seed pod? >> One grain of pollen per seed, not per pod. In the case you mention,
pollen from both parents could contribute to seed within the same pod. You
could have some children from each pollen parent. But the parents would be
unknown since you have no way of knowing which one was the parent of a given
seedling.
Page 327 of The World of Iris . . . Seed formation. Quote: "During
the first few hours after pollination, the pollen grains that were placed on the
stigma send out tiny tubes which grow down through the style into the ovary and
then into the ovules or embryonic seeds. Within the pollen tube are two
male nuclei. One unites with an egg cell in the ovule to become the
embryonic plant. The other unites with an endosperm nucleus in the ovule
to form the endosperm of the seed. For every viable iris seed, this double
fertilization must take place---one to produce the tiny plant . . . . .
For every seed produced in the pod, at least one
acceptable, viable pollen grain must be placed on the stigma.
________________________________________________________
If you don't cross them, you can't plant them! Betty W. in South-central KY Zone 6 --- Bridge In Time Iris Garden@website: www.thegardensite.com/irises/bridgeintime/ Reblooming Iris - Home Page iris-photos archives iris-talk archives AIS: American Iris Society website
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