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Thread: yellowing and brown on first true seedling leaves

  1. #1

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    Default yellowing and brown on first true seedling leaves

    hi all my seedlings are about 10 days old now and have just noticed that the last 2 to sprout have yellowing on the first set of leaves.
    the small round leaves are especially yellow and now the pointed leaves or going yellow from the tips and one even has brown patches on it.
    i transfered them to plagron light mix soil on sunday and gave the soil quite a good soak before putting the rockwool cubes in the new pots.

    any ideas?

    have attached some images below.

    https://i.imgsafe.org/9e3308bcc7.jpg
    https://i.imgsafe.org/9e362e3309.jpg
    Last edited by dave1raver; 07-02-17 at 04:08 PM.

  2. #2
    Viz Guest

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    When you say you transferred them, what soil where they in before.

    And have you been feeding them at all?

  3. #3

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    hi, they were just in the 1" rockwool cube before sunday, quite a few roots coming out the bottom so put them in soil,
    Plagron light mix soil and so far all they have had is 2ml of plant magic old timers grow in 1l of water shared out between the 5 plants

  4. #4
    Viz Guest

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    There was no need to feed them if they are in soil for at least the first couple of weeks. What you have there is a little nute burn. Nothing to get too stressed about as long as you don't carry on feeding them for now. The soil will have enough nutes for your girls.

    Just give your girls Rhizo and some Great White if you use it in the water, no nutes until they show a slight pale green in the growth.

  5. #5

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    thanks for the help.
    so just plain ph'ed water now for a couple weeks? i currently dont have any Rhizo will they make a comeback without it?

  6. #6

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    No need to ph in soil mate, itll sort itself out.

    sent from The HeadQuarters

  7. The Following User Says Thank You to Mr.Turbo For This Useful Post:

    dave1raver (07-02-17)

  8. #7
    Viz Guest

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    Yes plain water is fine by itself. I can not imagine doing a grow without using the stuff. I use it for my seed germination.

    CANNA RHIZOTONIC is a powerful, algae based, vegetative stimulator for plant roots. It contains multiple vitamins and is 100% natural. RHIZOTONIC adds more than 60 microbiological substances that considerably speed up the growth of a balanced root environment.


    Benefits of CANNA RHIZOTONIC:

    Stimulates new root growth on cuttings and transplants.
    Besides stimulating root growth on plants that are already rooted, RHIZOTONIC also stimulates new root growth on cuttings and transplants. The various trace elements and vitamins such as B1&B2 stimulate the production of hormones and root growth, thus providing beautiful, strong white roots.
    Speeds up the germination process when used to soak seeds prior to planting.


    If you dilute RHIZOTONIC (40ml/10 litre), you can use it to soak seeds. RHIZOTONIC softens up the seed skin, making it easier for the seed to burst and germinate.
    Enhances overall plant growth and chemical reactions in the plant to ensure a healthier, powerful and stronger plant.
    Good results start with a healthy plant. Because RHIZOTONIC stimulates root growth, it improves the strength of a plant. This is especially important during the first weeks of a plant's life, since young plants are the most vulnerable. RHIZOTONIC stimulates further root development, increases the plant’s resistance to diseases and promotes its inner and outer strength.
    Aids in the recovery process of any plant or cutting that has been subjected to stress in any way whatsoever.
    Many growers agree that plants recover much quicker from stress situations if the leaves have been sprayed with RHIZOTONIC. Such stress situations could for example occur during transport and re-potting plants. RHIZOTONIC will also improve plants that are unhealthy or poorly developed.
    Furthermore, RHIZOTONIC is often sprayed on leaves and can be used as a simple means for raising the pH level in fertiliser tanks.

    RHIZOTONIC can be used regardless of the type of medium. It is suitable for cultivation in potting mix and hydro culture. You can use it during the whole growth cycle. From seed to harvest!

  9. The Following 2 Users Say Thank You to Viz For This Useful Post:

    dave1raver (07-02-17), Glynne (08-02-17)

  10. #8

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    thanks i will try to get some if you think it may help

  11. #9
    Viz Guest

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    With soil growing you need very little.

    Old Timers Grow and Bloom. Some Rhizo, a small tub of Great White (optimal) a little Epson Salts and a jar of Black Strap Molasses. Bang sorted. That will let you grow six to ten plants mate.

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