Update -Evaluating the appearance of immature gender structures to identify sex in plants grown from regular seeds
Part 1 of 5 - Introduction (due to the number of photos this update will be 5 posts in total)
Greetings 420 enthusiasts! For the past few years, I have grown both feminised and regular seeds. For each regular grow, I have looked very closely to try and identify what the sex of the plant will be from the observation of the early forming gender structures. From these observations I feel I can make a good attempt to identify the gender of the plants. Hopefully this post can be useful for others who are growing regular seeds, those who grow only feminised seeds will probably find this rather lengthy and boring. However, I will use this post myself to reference on subsequent grows, to refresh my mind on some of the different possible appearances of the immature gender structures, as there is no point reinventing the wheel each time!
To recap, I have 6 plants that I have grown from regular seeds. These 6 plants represent 3 strains of 2 plants each. The seeds were made from my grow last year using pollen harvested from an African Mulanje male. Now the plants are 'expanding' and my balcony space is fast shrinking, I need to establish who is a boy and who is a girl.Any male plants I want to chop and remove because I don't intend to make seeds on this grow, so I don't need them. And also, I need to reclaim some space on the balcony so I can grow out the females while allowing enough room to carry out plant maintenance.
Balcony lineup - 6 plants grown from regular seeds
2 plants per strain
The fact that I am growing 2 plants per strain creates a potentially interesting contrast to compare the resulting closeup pictures. i.e. if a pair of plants are one of each gender, then we can expect that there may be contrasting differences when we compare the 2 photo sets. So, once we've looked through each photo set, we can then step back and compare the photo sets of the associated pairs to see if they help us to further identify genders.
6 closeup photos of the early gender structures of each plant
To evaluate early gender structures, I would recommend making multiple closeup observations. I am now in my 60's and my once sharp eyesight has deteriorated to now be quite crap. These pictures have all been taken with only natural lighting and handholding the camera, no tripod. When trying to focus while coping with movement, the glare of the sun on the camera, it isn't easy. Some folks use a Loupe, although I have no experience of using one, and besides, I prefer to take pictures that I can enlarge on the computer to best contemplate what I am seeing.
I have condensed the number of photos I took into just 6 closeup pictures of each plant to show in these posts. Ideally, I feel double or triple the number of closeup pics would be better, but as I don't want to photobomb the heck out of this site, I am only posting 6 pics each. I think this is just enough to demonstrate how some pics if viewed in isolation can cause the wrong call to be made.
Indicators I use to evaluate gender and what I don't use
I am solely looking at closeups of the nodes and gender structures, these are the observations I have used over the past several years. Some folk use other indicators like node spacing or whatever, but I haven't considered these and have no experience in them to recommend. Nor do I consider whether the Stipules are crossed or not, some folks feel when they are crossed that it indicates a female, in my experience this is nonsense, I feel that crossed Stipules are a poor choice of indicator to use because many times I have seen the Stipules crossed whether male or female, in fact I think most of my pictures here show crossed Stipules.
The features I use of the gender structures that may suggest a female
Base: If it can be viewed, they should have a wider thicker base than males.
Shape: Usually taller than males. Usually straight, sometimes curving out then straight up.
'Filling': Usually appears more evenly 'filled'. Sometimes a little 'plumpness' that is evenly spread, not like the males where they can show 'roundness' at the lower part whereas females tend to show it in the middle and it is more gradual, even, and smooth.
Surface appearance: Usually 'softer' in appearance, more 'Yin'.
The features I use of the gender structures that may suggest a male
Base: When viewable, a narrow pedestal base may be seen underneath the gender structure.
Shape: Usually shorter than females, sometime 'bitsy' as a prelude to growing multiple balls at the location. When a 'crab claw' is present the shape can appear curved, sometimes it appears only as a single 'claw'.
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Filling': Often not 'evenly filled', sometimes almost shrunken in, sometimes a distinctly ball shape is seen at the lower part.
Surface appearance: To me, male parts often look more 'armoured', often more shiny and more 'Yang' in appearance.
Crab claw: This is really part of the shape, but when a 'crab claw' is seen, it is the sign that most indicates a male.
If determining gender from closeups they need to be good quality
I have found that when a picture is dark, fuzzy, poorly lit etc, that the resulting appearance can be deceiving where one's own mind thinks it sees something in the blur. If all you have is fuzzy blurry pics, then of course that is all you have got to go on. But for me, I very much prefer to only deal with well focused closeup pictures.
I remember maybe a decade ago, that some young Egyptology scientist claimed from viewing satellite images that she had discovered 17 'new' pyramids. But none of them turned out to be actual pyramids, it was most likely she was seeing what she wanted to see. So, if you have the choice, steer clear of poor quality photographs.
Different angles may present the structure in a biased manner causing misidentification of the gender
Mostly this happens when a male double or single 'crab claw' is viewed from the side where it's curve is not apparent, but from a different angle suddenly what first looked like a tall straight female structure was actually a 'crab claw' viewed from the side,which may have you thinking that it is one gender when it is really the other.
Not all nodes will have gender structures present
At this immature stage before balls or pistils have developed, you should check multiple node sites not just for one structure but ideally multiple nodes sites
to obtain the 'range' of appearances of the early gender structures showing on that plant.
Don't make your conclusion on the first gender structure you identify
I will endeavour to show in the pictures that follow, how easy it is to be misled when the structure you have photographed appears to be one gender, but only looks that way because of the angle or lighting or blurriness etc.
Describing what I see
And finally, I will make a comment underneath each photo to say what the photo shows to me. I am not claiming any expertise just my own subjective views.