Do cucumbers affect the tomatoes in the greenhouse?

[Rossa]

I had a call from my friend Al who has a lottie Manchester way. He was told yesterday that cucumbers give off a gas inside a greenhouse that can affect any tomatoes growing alongside them.

Have to say I hadn't heard of this and neither had he. He says some of the other lottie guys/gals are putting up plastic sheets to separate the cukes from the toms, which seems a bit OTT to me. The lucky ones with 2 greenhouses swear by growing them in each one.

Anyone heard this? Will probably now find out it's absolutely true...stranger things have happened.

If it is true, does it apply to all cukes. I'm not a big fan, but am trying the Lemon Crystal, round yellow variety for fun. And was going to put them in the greenhouse with the toms.

What do you guys/gals think?
________________
"..I went from adolescence to senility, trying to bypass maturity.." Tom Lehrer

[Duronal]

All the book si have say that this is a myth. I'm sure given enough space and feed they'll be fine.

[Capsid]

I thought it was due to the plants needing different levels of humidity.

[smallblueplanet]

We grow our cuke next to/through the toms in the g/h.

[divvy]

Iv'e been growing cukes and tomato's together in the same greenhouse for years and they both grow well .

[SarzWix]

I've seen (and grown) cucumbers in the same greenhouse as toms since I was 6...

The only thing I do is put the cucs further away from the door than the toms so that they get higher humidity, and pin a little more shade netting behind the cucs. In an ideal world, they would have their own greenhouse to give them perfect conditions. but as most of us don't have that luxury, they do just fine mixed with the toms. And I've never had any problems with the toms either!

[sewer rat]

Never had a problem either, though I do grow the cukes towards the middle of the tunnel and the toms at either end.

[Rossa]

Thanks all, I'm glad to hear it as our greenhouse is not that big so would have fun trying to screen off the cukes.

[King Carrot]

I might be wrong on this, but as well as the humidity difference, I gathered that while Toms like a high potash feed on fruiting, Cus much prefer a high nitrogen feed.

[j r hilton]

Never had any trouble growing my cucs and toms in the same greenhouse. Have had cucs at each end and toms in the middle with no problems.

[Alison]

This one keeps cropping up but I've grown them next to each other for the past about 10 years and they both crop perfectly well without any problems so I've always put it down as an urban myth.

[kentvegplot]

There is a difference in the 'ideal' humidity, but I grew them side by side for the last two years and will do the same this year.