How to prevent x pollination?
Lisa 8b
7 years ago
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Comments (9)
Lisa 8b
7 years agolast modified: 7 years agodigdirt2
7 years agoRelated Discussions
Preventing Cross Pollination
Comments (9)Well funny thing is that I was partially right on the tomatoes. Tomatoes are self fertile, in other words they do not need outside pollinators such as bees or other insects. Tomatoes do not cross except for currant and potato leaf or hybrids. So if you are not growing one of those you should be fine. If you just bag your foxglove and you do not hand pollinate it you will not have seeds. If a plant needs to be open pollinated what that means is that in order for it to produce seeds it must have insects to pollinate it because the plant itself will not do it on its own. So you must hand pollinate it if you are going to keep the insects from doing it. Not all plants require this!! Most do though. How do you know which do and which don't?? My answer Botanical, Botanical, Botanical, and a great search engine. There is quite a bit of misleading info out there yes but for the most part it is pretty helpful. Here is something else you should consider. If I said to you I am planning on growing a blue lupine this year would that mean anything to you. Do you have a clue how many blue lupines are out there?? If a person can not get botanical names of their plants or if they do not know where they originated from to have a botanical name how do you know that seed will produce true plants?? The seeds that you have could be of a pink hybrid foxglove. You grow it it comes up close to pink, you pollinate the flowers save the seeds distribute the seeds to someone else under the impression they are pink and someone else gets white. That is how it works. By the way the lupine is Lupinus Perennis or wild praire lupine, it is the only larvae food of the endangered karner butterfly. See now if I just said blue lupine how would you of known that the little plant would of been so useful. Also that lupine actually likes sun and dry conditions and it is a perennial compared to other lupines that like shade and bog like conditions. :) LOL, I found that out by someone else growing this variety, I went to do my searches and she was right on the money. Without the botanical name though neither of us would of known how to grow it properly....See Morepreventing spontaneous 'self-cross-pollination'
Comments (2)In hot areas a plastic bag can heat the flower beyond the pollen receptive or development temperatures. It only takes an hour or so for the pollen to grow tubes & do its job but if you keep the flower covered all day that could be a problem. You can also just place a cap of aluminum foil over the pistil. Roll a bit of foil around a toothpick, slide it over the pistil. If it is for protecting your own crosses remove the stamens and some people even say remove the flower's petals to keep pollinating insects away. You only need a pistil & ovary for the flower to produce seed. Sometimes ants can be the culprit. If they are in your daylilies you can put a ring of petrolium jelly around the base of the scape to keep them from climbing it....See MorePreventing cross pollination
Comments (5)I just wanted to address one of your questions not specifically addressed in the FAQ. "Unless hybrid tomatoes don't produce viable pollen?" Hybrid plants do produce viable pollen or they wouldn't be able to produce fruit. The fruit has seeds and those seeds are viable if saved and stored properly. Therefore, it is possible, but not probable*, that a hybrid planted in close proximity to an open polinated/heirloom variety could cross. *Note: My experience agrees with the 2%-5% figure used in the FAQ. Good luck. Randy...See MoreHow can you be sure ovum is not pollinated?
Comments (4)I am concerned that the one black cherry plant has been crossed by my Prues. The BC's are showing a slight nipple and are already larger than expected. We had fierce breezes earlier when the first blossoms appeared. ***** Any X pollination that occurs this season will not show up in the cross pollinated variety. It's only if you save seeds from fruits that have been X pollinated and sow the seeds for next year that you would see any differences. So the nipple you see with the black cherry does not indicate that X pollination occured this season. ****** If this is the case the rest of the garden is "suspect". I bagged some yet to flower trusses of the Prue because they are very special to me.(And taste grrreat) **** No, the rest of your garden is not suspect per se, but X pollination can occur. Bagging the Prue blossoms before they open is the best way to go for pure seeds for next year. Bag several, not just one blossom. ***** Is there a way to tell if the blossom has pollinated? Say if it is not bulging and has a inverted stigma? Will bagging the yet to flower truss work? ****** You know that a blossom has been pollinated/fertilized if that blossom then sets fruit. It has nothing to do, really, with exherted stigmas. Just look for fruit development. ******* Is artificial or hand pollinating the only way to be sure? ****** No, the best way to go for the home gardener is to bag blossoms, as I said above, before the blossoms have opened. Hand pollinating means a lot of work in terms of removing the whole corolla of the female recipient before artificially placing the pollen on the stigma, and I don't see that being necessary for the home gardener as long as you use proper material such as tulle, to bag your blossoms. Please go to the top of this first page and click on the FAQ link and read the very good article, with pictures, about how to prevent X pollination. **** In your subject title you asked how one can be sure that the ovum is not already pollinated. You can't. The tomato ovary has lots of ovules in it and when self pollenization or X pollination occurs, each pollen grain that lands on the stigma goes down to the ovary and fertilizes one ovule ( seed to be) There's no way you can know how many ovules have been fertilized other than to count the number of seeds in a given mature fruit. Carolyn...See Morefarmerdill
7 years agolast modified: 7 years agoLisa 8b
7 years agozeedman Zone 5 Wisconsin
7 years agoLisa 8b
7 years agodigdirt2
7 years agoLisa 8b
7 years ago
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