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I need help. Few of my paphis do this: new roots stop at cca. 2-3 cm , become brown and slimy....Any idea?
Yes, Xavier said the same....but i had another problem related with this. After i gave boron , at adviced cc, symptoms did not disappear, it is ok after a short period, but leaves softened a bit....as intracellular tourgor preassure decreased ....I think Tony might do a similar boron/calcium drench. Not sure if he can recommend ratios. I think it was on the pdf that’s online that Xavier wrote
Deficiency is an interesting and difficult question.....if you give an element in high cc, can cause def. of another element.....eg. boron def. causes similar symptoms as ca def., however they are competitive antagonist parts for plants...if you give too much ca, can cause boron def. and vice versa....Interesting. Is it one subgroup of paphs only or several different kinds? Have you tried spraying with mancozeb/dithane?
Beyond that I don’t really have the knowledge. It’s maybe not directly related but I use kelpak monthly and get good roots that extend as long as I keep them moist. Maybe if you get some of that it could overpower this issue?
Using natural fertilizer like kelp or fish emulsion would be my best bet for an unknown deficiency
What is "cca"?I need help. Few of my paphis do this: new roots stop at cca. 2-3 cm , become brown and slimy....Any idea?
Approximately...(circulated=cca....by latyn)What is "cca"?
Oh, and how ...Thank you Ray, I didn t say that it is because of nutritient def ... I only look for other guys who had similar problems and could solve it .
written in the 2012 guideline, with my quick calculation the recipe goes to : Zn:0.227mg/L Mn:0.975mg/L Cu:0.255mg/L B:0.262mg/L Mo:0.093mg/LIn some cases, the root tips can have a brownish exudate, and stop growing. It is absolutely boron and zinc coupled deficiency, though this will not happen if the given schedule is followed....... The brown root tips are an oxidation process started by the lack of boron and zinc. It took me a couple of years to find out. It can be reverted if the feeding is
corrected.
Are you using bio stimulants?I need help. Few of my paphis do this: new roots stop at cca. 2-3 cm , become brown and slimy....Any idea?
Sometimes Fe can raise fenton reaction withH2O2 which is inevitable in roottip
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