Post by flowerpower on Jun 16, 2008 3:03:42 GMT -8
For those of you who read this on HG, sorry. lol I just read this on another forum, when someones asked about lack of pollination. They say the best way to hand pollinate is with an electric toothbrush since it mimic the bee's vibrations.
Here is their explanation-
"Tomato pollen is not in the exterior like most flowers, rather it resides internally and then released through pores in the anther. Paintbrush are good for peppers and squash, but it cannot to the trick for tomatoes. Motion is required to release the pollen, and the greatest quantity to be released is by sonication in certain frequency.
Tomato is originated in the highlands of the west coast of South America where a species of halictid bees were their native pollinators. As tomatoes were moved from their native areas, their traditional pollinators did not move with them. Domestic cultivars of tomato have been selected to maximize the trait of self-fertility, i.e., the capibility being pollinated by alternative ways such as in wind or shaking.
Shaking by wind will release pollen. But not all types of tomatoes respond to wind the same. Most commercially chosen types to grow for open air will respond to wind very well. But if you are growing those rare-to-find species, wind may not be enough (that is why they are not selected for commercial production).
The most effective pollination is to be vibrated at a specific frequency by the native halictid bees. Honey bees are unable to vibrate the tomato flower in this way, but bumble bees and some other native species can. The size of the fruit is dependent on the number of ovules fertilized. So we want to get pollination as full as possible. This is the reason the bee is best, it delivers the most grains of pollen, exactly where it is needed, on the sticky surface of the stigma. Even for species responding to wind well, according to research, bees can still significantly increase the productivity and you'll get bigger and juicier fruits."
Though when I ask for this research, they direct me to wikipedia (ugh!) & other sites that are not research facilities. Now I am wondering if Tom uses this method when making hand crosses. If not, would you consider it?
Here is their explanation-
"Tomato pollen is not in the exterior like most flowers, rather it resides internally and then released through pores in the anther. Paintbrush are good for peppers and squash, but it cannot to the trick for tomatoes. Motion is required to release the pollen, and the greatest quantity to be released is by sonication in certain frequency.
Tomato is originated in the highlands of the west coast of South America where a species of halictid bees were their native pollinators. As tomatoes were moved from their native areas, their traditional pollinators did not move with them. Domestic cultivars of tomato have been selected to maximize the trait of self-fertility, i.e., the capibility being pollinated by alternative ways such as in wind or shaking.
Shaking by wind will release pollen. But not all types of tomatoes respond to wind the same. Most commercially chosen types to grow for open air will respond to wind very well. But if you are growing those rare-to-find species, wind may not be enough (that is why they are not selected for commercial production).
The most effective pollination is to be vibrated at a specific frequency by the native halictid bees. Honey bees are unable to vibrate the tomato flower in this way, but bumble bees and some other native species can. The size of the fruit is dependent on the number of ovules fertilized. So we want to get pollination as full as possible. This is the reason the bee is best, it delivers the most grains of pollen, exactly where it is needed, on the sticky surface of the stigma. Even for species responding to wind well, according to research, bees can still significantly increase the productivity and you'll get bigger and juicier fruits."
Though when I ask for this research, they direct me to wikipedia (ugh!) & other sites that are not research facilities. Now I am wondering if Tom uses this method when making hand crosses. If not, would you consider it?