|
Post by oxbowfarm on Sept 26, 2011 9:26:57 GMT -5
Anyone have any idea how they create hybrid brassica seed commercially? I can see how one could do it on a home scale using a single plant of each line in isolation to create F1 seed. But how would you do it on a field scale where you want to produce a commercial amount of seed for resale? You'd need lots of individuals of each variety, how would you prevent them from inbreeding rather than crossing. Male sterility?
I assume it must be some form of male sterility, so how do they maintain male sterile breeding lines?
I was just thinking about it when I was out hoeing the Hakurei turnips and thinking about what a nice variety they are. And how the heck they could produce such a consistent hybrid in a brassica. Any one have the knowledge?
|
|
|
Post by 12540dumont on Sept 26, 2011 11:19:22 GMT -5
Tim, www.agrsci.unibo.it/wchr/wc2/monteiro.htmlIt's ugly. In a nutshell Until recently brassica hybrid breeding has been using the sporophytic self-incompatibility mechanism since there is no cytoplasmic male sterility in B. oleracea. The instability and complex inheritance of the self-incompatibility mechanism makes its use difficult and conducive to low quality F1 hybrids. However, the production of brassica F1 hybrids is now developing faster, albeit with some technical difficulties, using double-haploid parent lines obtained through microspore culture and cytoplasmic male sterility introduced from Raphanus sativus into B. oleracea.
|
|
|
Post by steev on Sept 26, 2011 19:21:35 GMT -5
Gnarly! So in 1998, it was predicted that F1 hybrids would eliminate OP cauliflower in Normandy within five years or so. Adieu, OP's: Hellooo, hybrids!
|
|
|
Post by 12540dumont on Sept 26, 2011 21:24:58 GMT -5
Yes, I did have a laugh about that. Maybe somewhere, but not in my garden. I find varieties like purple cauliflower to be much more reliable than any hybrid. Now that's a cauliflower. The sweetest, cauliflower I ever ate. I let several go to seed, not enough of course, but I couldn't very well rob my CSA of 50 cauliflowers. Attachments:
|
|
|
Post by cortona on Sept 27, 2011 13:01:33 GMT -5
holly think you can cut the head of the caulflower and let go to flower the lateral shots of the cutted plants if yo need number for the caulflower population.
|
|
|
Post by 12540dumont on Sept 27, 2011 14:58:18 GMT -5
Tried that, alas it made no lateral shoots at all. So, everyone got one cauliflower and the rest of them are going to seed.
|
|