Can I FSS on roundup'd OSR?

[Rabbit Wolverine]

I'm growing a conventional OSR this year after years of growing hybrids, and want to FSS the seed, can I do so on a crop which has been pplied with glyphosate?
I know it's not recommended to FSS on cereals, but does that apply to OSR too?

 

[stroller]

I do, never had any problems, do a germination check if you're worried.

 

[tw15]

It grows out the back of the combine . Best to do a germination test ideally you don't want to apply roundup but have used seed that has had it on and seen no difference .

 

[APJ]

It will be fine after roundup, don’t worry.

 

[robbie]

It'll be fine. I think the only problem may occur when it's rounduped too early and the seed can Still take it in through the plant. At the correct timming it is absolutely fine.

 

[Brisel]

All glyphosate labels say no so that’s the legal bit. In reality it should germinate but may well have less vigour, especially the seeds whose life cycle were stopped prematurely. I wouldn’t do it but many do and seem to get away with it.

 

[Bovril]

No
I germination tested glyphosated wheat once. 70% germination.
If you lose 1% of a 5t/ha OSR crop out the back of the combine, thats 50 kg/ha. 70% grows, or 35 kg/ha, that'll give you a green carpet.
If you drill the same seed at 2 kg/ha, that'll end up at 1.4 kg/ha (presuming that it is 70% germination), which will make a difference.

I guess you could do a test and adjust seed rates accordingly, but its so easy to just miss a tramline with the sprayer, leave that bit till last and save seed from that bit, then you will get 100% germination...

 

[robbie]

Or just whack some on extra seed. If you've only got 70% germination drill it at 7.5kg ish to equal 5kg of "good" seed. The saving will still be huge.

 

[Barry]

Make sure you get the timing right and if anything don't go too early. And absolutely get it tested for germination.

If have a crop of variable maturity either in tramlines or in patches then that is the areas where germination could be affected.

 

[Beefsmith]

I'm growing a conventional OSR this year after years of growing hybrids, and want to FSS the seed, can I do so on a crop which has been pplied with glyphosate?
I know it's not recommended to FSS on cereals, but does that apply to OSR too?

Yes no problem. We’ve been doing it 20 years + with both osr and wheat. Never had a problem with germination.

 

[Oat]

I think as long as the moisture is below 30%, then it should be OK. But as mentioned above, if you have a variable crop then there is more risk, and to be sure do a germination test.

 

[Lincsman]

Germination isnt the issue, its if it grows correctly, for what bit you need leave a tramline not sprayed.

 

[Oat]

Germination isnt the issue, its if it grows correctly, for what bit you need leave a tramline not sprayed.

If it doesn't effect germination, then what does it effect? I would have thought glyphosate would have the most effect on germination as it is systemic, nit residual. Therefore, if sprayed too early, it would kill the seed which would affect germination

 

[Lincsman]

If it doesn't effect germination, then what does it effect? I would have thought glyphosate would have the most effect on germination as it is systemic, nit residual. Therefore, if sprayed too early, it would kill the seed which would affect germination

I am told it can cause distorted growth, a bit like a plant that has had a very small dose.