my plants are in the 4th week of veg under cfls they look great and grow more daily. my question is some ( the soma a+ clones and some of the bag seed have verticle purple lines running the length of the main stem and on other stems. is this just part of the genetics or am i missing something. everything else is great. oh yeah, one of my bagseed plants has these enormusly wide and large leaves, my wife thinks this is a male trait any gueses?

Glad to here you wife supports your decision to grow; makes things eazyer. You wont know sex untill the start blooming, the wide leafs are just the strain.

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Ive got 11 point leaves foot wide that are females

Genetics [purple lines]. Wide leaves are [generally] a dominate trait of indica strains. Nice your wife shares your hobby!

Nelson

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In my experience, purple stems and leaf petioles are indicative of poor nutrient supply or root system disease/damage. A genetically purple plant is a whole lot rarer than a phosphorus deficiency. I've grown about 15 different seedbank strains and not one had any purpling unless there were problems.

DO NOT PANIC. A seedlings purple stem doesn’t necessarily indicate an unhealthy plant. Please take the following possibilities into consideration:

1 - Purple Stems could be a result of that wonderful thing we call genetics, if this is the reason, you are to expect a purple stem throughout the life of the plant. It must be noted that purple stems aren’t a dominant trait, and are rarely genetically induced.

2 - A baby sprout with a purple stem is almost always 100% natural. Young seedlings are still adjusting to their environment and may be slightly lacking in a Nutrient. If this is the case, healthy plants will regain their green/greenish-brown color within a few days to a week or two.

3 - If you have ruled out the possibilities of genetics and the seedlings adjustments to life, you should begin looking for a nutrient deficiency. Purple stems are commonly caused by a Phosphorous (P) or Magnesium deficiency, if there is a P deficiency you may also notice symptoms such as brittle leaves or greyish spots. To assist the uptake of Phosphorous (as well as most other nutes) you should ensure the pH is slightly acidic-- 6.0 will suffice.

i might be trippin' but just about every plant i've grown has had some type of purple or red coloring on the stem of the leaf. these plants were all beautiful and healthy.

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yeah i think mine are fine. no other signs of problems and they continue to grow. gotta raise lights daily