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Certainly not a programming questions and probably KSS:
My eggplant (two varieties, one oriental, one white) are have a problem. About 1/3 of the seedlings have their Cotyledon die before they even get partially out of the seed. The little stump, left behind, has nothing at or above an initial leaf node so it's alive but useless.
Online searches turned up various plant diseases and even how to remove seed shells stuck on the leaves (from living leaves). Very frustrating.
Anyone know a cause? Maybe it's a genetic problem? I'll be planting a second round of seeds, there being enough time, yet, before planting - but if any of you have this arcane knowledge, it would be nice to know what I'm up against.
Habanero, Thai, and Jalapeno peppers, sprouted in identical environments, not so afflicted. Jalapeno from home grown ripened peppers. Sprouting environment: heating mat and moist covered vermiculite. Growing lamps when they meet the surface - where they're soon transplanted to fine new soil.
You may have noticed (or not) that I never, not even on the SoapBox, type in "bite me". Being cognizant of genetic engineering, I may find out the a recent development will give me cause to regret those words.
Generally, however, when you are dating eggplant, it's safest go for Italian food so they can order what they want.
just a wild guess but is the air too dry?
I've seen other seedlings fail because the water got sucked out of them faster then the tiny roots could supply (capillarity action has it's limits too).. could be sun/lights too hot, or air-con (even low temp coldness) will also dry the air, even a fan if too strong will increase evaporation. (Yes plants, particularly young soft new leaves sweat a little for the same reason humans sweat - to cool & moisturise.)
Try bagging the seelings (good size bag, not totally enclosed - a little air still needs to move around)... if warm avoid young leaves/shoots getting too wet - leaves literally drown if too much moisture on the surface (looks like rot but it's actually starts as drowning) the leaves/shoots need water AND air.
Good try about the drying - but the seed sprouting is done in a covered Chinese takeout tray. Clear top, too. Internally, nicely moist (condensation apparent). I take pains to make sure it's not too moist (causes rot). I'm a really good seed-starter. Cacti are easy; succulents, with seeds you can hardly see - I've managed a few. The eggplant seeds are starting - yet "this one, but not that one" just does this previously unseen behavior. Better the eggplants than the peppers, but I do like eggplant. Goes well sauteed w/hot peppers, garlic + other nice things.
I'm surprised, pleasantly, to find that someone around here knows plants do a full respiration cycle. Typical leaves have respiration pores on the edges of their leaves - up to a point, it's quite interesting how different types and climates adapt these openings.
Right now, I'm leaning towards a genetic anomaly. It's likely that the seeds in the package (the eggplant are all store-bought commercial seeds) are from a small gene pool, thoroughly inbred. It may, in fact, be these "Casper [^]" eggplant - seeds of which, bought at earlier times from a different source, proved to have a very low germination rate - or perceived germination rate. I'll be replanting only the Oriental variety, so I'll be getting somewhat of a test on which (or both?) type is a fault. Yes- they were sorted - but - an oops rearranged the starting tray quite a bit.
Thanks - I found similar articles - but none seem to discuss what I'm experiencing, which is the shoot emerges from the soil with the seed containing the cotyledon - but they die a at that point, leaving just the shoot. Since the first node hasn't developed, no true leaves would ever come out, either, should I care to keep the stem alive.
Again - thanks. While the mystery remains, I'll plant a lot more and hopefully maintain a half dozen survivors in the garden.
Certainly worth a call - but I don't have high hopes.
My son was studying generic engineering of plants and has quite the background in how they do what they do. Not quite his specialty but he knows an awful lot of 'trivia' in this field. Nada from him. (Alas, after getting the degree, he turned to the dark side and didn't pursue it).
As mutations go, it couldn't be common since it's absolutely lethal in terms of ever producing offspring. It may be that some of our vegetable varieties will need a little gene-tinkering to fix accumulated ills from husbandry/breeding the "old fashioned way".
My disappointment with my son's change of fields is considerable: I wanted him to develop the "Salsato" - a tomato variety genetically enhanced with hot-pepper genes. What a magnificent accomplishment!
Yeah - dead is dead. They're laying beneath the surface and will remain there.
However, this is not just a single seedling. I could attribute that to an accident during emergence. Also, since I'm using vermiculite as the medium, they're having a very easy time of it coming to the surface (vermiculite makes transplanting extremely gentle on the little folks).
If the tops just disappeared, I'd suspect insects.
I've been starting my garden from seeds for nearly a score of years - this is freakin' weird.
Well - thanks for thinking about it. I'll probably need to just plant more as a botanical version of a Kludge.
The second one's serious. If you set a layer of horsesh1t (saying "manure" is just not so much fun) about an inch beneath the seeds before they start to germinate, the vapours from the horsesh1t (I might go for the CP record for the number of times of saying "horsesh1t", in this thread), as they filtrate up to the surface, take care of many of the nasties before they get a chance to breed, at the same time as being good for the seedlings.
I know this because my missus told me, and she's become a severely good expert in growing stuff, over the past ten years -- her not-the-normal-colour aubergines (I forget what they're called) do incredibly well, even in a country that doesn't have the weather for them.
I wanna be a eunuchs developer! Pass me a bread knife!
Interesting - and also should be taken with a grain teaspoon kilo of salt. Many plants, such as carrots, do very badly in freshly manured soil (which could mean months). It may work wonders for her aubergines (vengeance for you - I had to google it to be sure of what they were).
Fresh manure is not so great an idea, either - as my brother's had a multi-year infestation of white flies thanks to its "charms". Availability for gentry such as myself, of anything but composted manure is difficult. Only dogsh!t is available, with difficulty, thanks to the quality of neighbors (and their fear of a fine if they don't clean up).
OK - back to being fair - I don't doubt her acumen at sprouting her seeds. I've got some skills, too, including peppers from starting tray to flat in six days. It's mainly anecdotal. Tomatoes, peppers, and eggplants are all the same family (nightshade).
A bunch of these plants suggest "compost tea" soon after transplant - for those of us with abundant compost. Compost and sh*t and sh*t ain't compost. Although they could be.
An inch below the seeds? The entire layer's ca. 3/4" deep in the tray - once they get erection fully emerge with their Cotyledon, they get gently removed (trivially easy w/vermiculite) and put in nice comfy fresh soil. However, by then, it was really just too late for some. Actually, a nearly 40% mortality rate - easy to establish as I have six and have replace four of these.
But every hints a hint - I'm beginning to think i has something to do with Stackoverflow.
my brother's had a multi-year infestation of white flies thanks to its "charms"
That's not from the horsesh1t, it's from the horsep1ss. You have to get it from somewhere where you don't get a mix of it (i.e. not from stables, but from where they move around).
W∴ Balboos wrote:
The entire layer's ca. 3/4" deep in the tray - once they get erection fully emerge with their Cotyledon, they get gently removed (trivially easy w/vermiculite) and put in nice comfy fresh soil.
She made me build cold frames, for germinating the trickier (i.e. the not native to cold countries) stuff. Maybe you could knock one up.
Another thing she's been experimenting with is compost boxes, where you put a few inches of soil on top of your compost, and germinate seeds there -- and if you throw a glass or polycarbonate shell on top of that, you're talking tropical plants!
I wanna be a eunuchs developer! Pass me a bread knife!
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