Arriving a bit late here. It's not Blossom End Rot, which is characterised by a brown, leathery patch on the bottom of the fruit.
The patch will gradually darken. BER was once thought to be caused by a lack of calcium in the soil. Science discovered that it's brought about by the plant's inability to distribute calcium to the fruit via its internal workings. Plant stress is believed to be the cause. The problem is that myriad things can stress a plant - from irregular watering to sudden strong winds to fluctuating temps.
What's more, some varieties are more prone to BER than others. The plum shapes - San Marzano, etc - are famous for it. No one knows why beyond some sort of genetic predisposition.
The photo in the OP looks like an extreme case of "cat facing", a malformation thought to be brought about by cooler or fluctuating temps at the time of pollination. It doesn't affect the tomato beyond having to cut around the distorted part when you come to eat it.
That's a shame. Your first photo is a mild form of catfacing, the second photo more extreme. When slicing the tom, just remove the fibrous section, the bit that looks like a brown zipper. It's a very, very common condition with medium and larger varieties. It usually looks for all the world like the fruit has a hernia.
I just ran out and looked at the base of my Marmande omatoes and they are fine.. I have noticed my cherry Gardeners Delight are very behind big plants but hardly any flowers or tomatoes..
In addition nicd - most people overwater tomatoes [and overfeed them]. If you've always watered every day, then do that throughout the season. I prefer not to water them until they droop slightly. It's about the consistency of watering, not the amount. They shouldn't be constantly damp. It's also better to water earlier in the day and not late at night, to prevent them sitting in cold water overnight. Treat 'em a bit mean
I don't believe that's good advice. Overwatering of course can cause problems, but allowing them to dry out to the point of drooping will cause the plant unnecessary physiological stress with no benefits. And will increase the chances of Blossom End Rot.
And I think Italophile is right that nicd's fruits have 'Cat-facing', not Blossom End Rot.
The fruits do not need to be wasted, just cut off the affected bit at the bottom and enjoy the rest.
I'm also in the don't let the leaves droop camp. If the leaves are drooping due to lack of water, the plant is under stress, if it's hot too the plant is under additional stress. I tried this approach years ago and it's not a recipe for success in my view - but of course each to their own
Billericay - Essex
Knowledge is knowing that a tomato is a fruit. Wisdom is not putting it in a fruit salad.
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i have the seeds already
The patch will gradually darken. BER was once thought to be caused by a lack of calcium in the soil. Science discovered that it's brought about by the plant's inability to distribute calcium to the fruit via its internal workings. Plant stress is believed to be the cause. The problem is that myriad things can stress a plant - from irregular watering to sudden strong winds to fluctuating temps.
What's more, some varieties are more prone to BER than others. The plum shapes - San Marzano, etc - are famous for it. No one knows why beyond some sort of genetic predisposition.
The photo in the OP looks like an extreme case of "cat facing", a malformation thought to be brought about by cooler or fluctuating temps at the time of pollination. It doesn't affect the tomato beyond having to cut around the distorted part when you come to eat it.
if i see any more like that, il let them continue to grow.
Thank you @Italophile.
And I think Italophile is right that nicd's fruits have 'Cat-facing', not Blossom End Rot.
The fruits do not need to be wasted, just cut off the affected bit at the bottom and enjoy the rest.
If the leaves are drooping due to lack of water, the plant is under stress, if it's hot too the plant is under additional stress.
I tried this approach years ago and it's not a recipe for success in my view - but of course each to their own
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.