six of one/half dozen...?

[Eeyore]

Found some more PDF's on this, but it started going into PAR and Photon-Flux and the colour of the shade cloth... uhg coffee.

Did your eyes start to cross? Mine would have!

I didn't check the links but my presumptions were that the reflective coating would work better as it would prevent heat buildup better. Similar to window coatings. I guess I'm smarter than I look!

[Dumbo]

post your picture!

[Dumbo]

OGrubber, don't forget to tell us if the reflective cloth is better. Should be.

[OGrubber]

Sorry,
I haven't had a connection since Friday.
I'll check out those links tomorrow when I have a bit more time, thanks....
Should be getting the cloth by the end of the week which means even at the best guestimate we won't be able to put it up until mid to late next week.

[Dumbo]

I'd be curious to know what's growing in that greenhouse and how they are holding up to 50C.

Anyone have a link handy to various temp's versus various veggie yields? Tried searching for one, but came up with nothing.

Though I did read some research about how tomatoes hit peek production between 32 and 35C, then production dies off. They state pollen is no longer produced by the plant or flower once you start going about 40C.

With your new 50C greenhouse, have any info to share about what you are seeing with diff plants? If you want to that is...

[OGrubber]

Right now I have rosemary, figs and basil in the east end which is the warmest and tomatoes and summer squash in the west end which is cooler by about 5 degrees.

All are in 5 gallon or larger pots. All are doing well with no signs of any stress. There has been no problem with fruit set, however I may need to hand pollinate the squash. I won't know about that for another week or so.

The cucumbers that were in large pots and any seedlings that were still in plug trays haven't fared as well. Water has probably been the biggest issue for the seedlings rather than the heat. I am maintaining a once a day watering regime to prevent high humidity issues. Sadly, it wasn't enough for them - not enough soil vs root mass to maintain adequate moisture.

Although everything in large pots are doing well now, anything could happen at that high a heat. None of these plants are "tropicals" so really susceptible....

[Dumbo]

Interesting. I read a few research papers that stated the same thing about tomato flowers and no-pollen at these temps.

I would have to look this up again, but pretty sure these were not heirloom tomato's, but rather the types you will see in the supermarket.

I wonder if the tomato type plays a role?

Yours are all heirloom I gather?

[OGrubber]

Yes, That's all I have - heirlooms.
Tomato type may play a role in this. I'm not overly savvy about hybrids/modern types, so am not sure if they are all or mostly all determinates, but as an observation, the determinates in my collection are refusing to bloom while the indeterminates are blooming and setting fruit [as per normal].

[Dumbo]

Any news/update on this?

Got the new screen installed? Temps dropped? Determinates flowered? If they flowered, did you noticed the temp they came out at?

[OGrubber]

At first glance it appears as though the inside temps are cooler, but, we've had more cloudy weather with cooler outside temps and I don't have a "control" to compare it with....
The determinates are all well on their way to being compost now. lol