This Sugar Beet seedlings growing in hydroponics and the Hogland Solution preparation is maintained very well but this symptoms is appearing and turger pressure is god also means not water stress so what it can be ?
The picture of the roots is not clear enough. But the roots look quite bad. Probably the plants are anaerob, thus the roots rot.
Does your solution have a working and sufficient air supply? and when yes, how do the roots look like in the near of the air supply tube?
Thank you sir for replying to my question and I have checked the roots and no rot and the plants if having rot it will die within one week but this case since 10 days and I am confirming that the air circulation is very good also and in the same condition I grown plants before but I don't know what is happening this time. Thank you for your interest
It would be good to take 20 seedlings that are abnormal and dry them and also take 20 seedling looking good and dry. Have the dried sample analyzed for the atomic contents. Also compare your results to standard values. This exercise may indicate areas of disbalance or faulty nutrition. You could then amended to achieve more ideal composition to see if the condition can be overcome.
The last thing to add for me is, that leaf rolling can happen in unfavorable temperature conditions and (by the hydroponic system provided) a water lodging.
Sebastian sir I felt like that and now I decreased the temperature to 22°C.thank you for your suggestions
Thank you so much Paul sir for the suggestion. I am using the Hogland Solution composition only for this and I grown in the same before but this doesn't happened before so for nutrition defeciency I don't think bcs the same variety under salt stress is performing well but less seedlings size
It would help to know if the symptoms occur all the time, or do the symptoms come and go? I have seen similar leaf curl on young broccoli plants. It was caused by short term potassium deficiency, when the plants were under stress. Potassium wasn't deficient, the apparent "deficiency" was caused by stress affecting uptake and utillsation of the mineral. The plants recovered quickly once the stress disappeared. In this case high temperature.
If the symptoms appear then disappear. Look for a stressor in your system. Maybe the air temperature fluctuating too much?
its permanent but the plants still survive, temp. is good 23-25 degrees and solution is adjusted as original Hogland paper KNO3, Ca(NO3)2, MgSO4, KH2PO4, Micro mix and Fe-EDTA
the seedlings giving new leaves and curled also but what surprising me that its surviving so how can I discover what is the problem and this happening in the plants in control condition not to the plants under salt stress
I think there is some stress causing the problem. The answer is to check everything. Dont assume because it worked before nothing has changed. I would systematically check every variable for a change.
I am keep checking and water source had caused a problem but still some plants not recovered but 90% recovered from the curling
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