Pineapple Fields Community Grow Thread

[ShiggityFlip]

I see you are not a Wesley Snipes you have more of a gorgeous caramel thing going on. Like the inside of a Nepalese temple
Ball. You straight chronic Stage! These girls look awesome. The y shaped ones are from the topping no? Can take two nice clones off of those gals (praying for gals)

I bet that middle one is Pheno D like my Linda.

 

[SweetSue]

Forgive me if I've overstepped, but I stumbled over this incredibly valuable post at one in the morning. You actually had me tearing up that you'd put so much time and thought into this post. Shiggity, there was too much of value there to leave it in that man thing you guys do where everything lacks readable spacing. Formatting for readability is one of my not-so-secret passions. You're certainly not the first of the members to tempt me to indulge.

As my gift to this thread, since I have no room for sexing and therefore won't be joining you as a grow buddy, please accept this reworking of your original post on influencing the sexual determination of your cannabis seeds.

Supposedly the type of light and consistency at 3-4 weeks is most important for determining sex. Other factors too like moisture and NPK are supposed to be important. I would keep them in blue light until 1.5 months which is about when they show sex preflowers.

"Feminised Cannabis Seeds"
Courtesy of Dutch Passion

In November 1998 we introduced our "Female Cannabis Seed". We did this after our own experiments showed that from female cannabis seed, we acquired almost 100% female off-spring.

In the meantime we are six months further on. We have received a lot of feed-back from our customers. The reactions are mostly positive! Clients have successfully produced almost 100% female off-spring. However there have been reactions from customers who found a few hermaphrodites or males plants.

Apparently environmental influences affect the sex of the female cannabis seeds as well. Because of the fact that Female marijuana seeds do not grow into female marijuana plants under all circumstances. Thus we changed the name from "Female Cannabis Seeds" into "Feminised Cannabis Seeds".

From literature and from our own findings it appears that the growth of a male or a female cannabis plant from marijunaa seed, except for the predisposition in the gender chromosomes, also depends on various environmental factors. Not only the origination of entirely male or female marijuana plants is partly affected by these environmental factors, the number of male and female cannabis flowers on a hermaphrodite plant is affected as well.

The environmental factors that influence the sex of the cannabis plant (or the flower in the case of hermaphrodites), are among other things:

* The quantity of nitrogen and potassium of the seedbed. Humidity and moistness of the seedbed.
* Level of temperatures.
* Colour of the light used.
* Length of daylight.

Stress, any form of stress, makes that more male individuals will originate from seed. Even the taking of cuttings from female cannabis plants may produce male or hermaphrodite cuttings.

To optimise the result, changes in one or more of the above-mentioned environmental factors for a certain period during marijuana growth, may be applied. During this time these environmental factors will deviate from the standard growing system for maximum harvest and quality, as described in nursery literature. The desired change(s) in the environmental factor(s) are started from the moment that the marijuana seedling has three pairs of real leaves (not counting the seed-lobes). This is the moment that male and/or female predisposition in florescence is being formed. [COLOR="#000FF"]After approximately two weeks the standard growing system can be reconverted to.[/COLOR]

Of the 5 above-mentioned environmental factors the first three are the most practical:

* Level of nitrogen and potassium of the seedbed: A heightening of the standard level of nitrogen makes for more female cannabis plants originating from the weed seeds. A lowering of the nitrogen level shows more male cannabis plants. A heightening of the level of potassium tends to show more male marijuana plants, while a lowering of the potassium level shows more female marijuana plants. A combination of a higher nitrogen level for the period of a week or two and a lowering of the potassium level is recommended.

* Humidity and moistness of the seedbed: a higher humidity makes for an increase in the number of female cannabis plants from weed seed, a lowering for an increase in male cannabis plants. The same is valid for the moistness of the seedbed.

* Level of temperatures: lower temperatures make for a larger number of female marijuana plants, higher temperatures for more male marijuana plants.

* Colour of light: more blue light makes for female cannabis plants from seed, more red light makes for more male cannabis plants.

* Hours of daylight: few hours of daylight (e.g. 14 hours) makes for more female individuals, a long day (e.g. 18 hours) makes for more male cannabis plants.

..................................................​

Now let me just make a few adjustments here to this. You can do whatever you want to your cannabis plants in seedling stage and early vegetative stage of growth and it will not effect your final male to female ratios. The time when things should be near perfect is in or around the 3rd to 4th week of vegetative growth.

This is the CRITICAL TIME for getting those female ratios up and up. I realized this clearly when noticing how some cannabis plants hermed because of problems that occurred around this period of the cannabis plants development. If the problems occurred before this time - no herms. So for this reason I surmised that this is when the crucial gender selection is made by the marijuana plant.

Now I believe that the genders are set in the weed seed however the environment has a massive impact on how this is expressed in the final phenotypic expression of the cannabis plants gender. There are probably many genes that govern this, however lets get into how to up these female ratios.

The Italian Society of Agricultural Genetics agrees the sexual differentiation of cannabis is strongly influenced by environmental factors such as temperature and photoperiod. Anomalies also occur in floral development like the presence of reproductive structures of the opposite sex, or the development of bisexual inflorescences (monoecious phenotype).

At the 3rd to 4th week of vegetative growth make sure that your marijuana plants are free from stress. No pests attacks, no fungi attacks, no mold, no irregular photoperiod, not underwatered, not overwatered, not pruned or topped, a cannabis friendly soil mix, not recently transplanted, no small pots. If have these basic growing conditions under control then we can move onto the real forces of female production from standard weed seeds.

N:K and nutrients. What this simply boils down to is that you have the right nutrients present in the right ratios. A nutrient formulation that has roughly equal parts N, P and K is great but if the P levels go up or the N levels go down you are starting to look at a flowering type food for cannabis. If you do this then your odds of producing mostly females is greatly decreased. Make sure that you get those N, P and K levels to almost run from higher to lower amounts from N to P and K.

I have noticed that equal portions of N to P an K can help with the female ratios but the higher N is certainly more helpful. So around the 3rd of 4th week of growth make sure that the ratios are good and that P or K has not gone above the N and P or else more males will occur. Obviously this means to avoid overfeeding your cannabis plants around this time too.

Never let your medium dry out completely around the 3rd to 4th week of vegetative marijuana growth. If you make sure to water occasionally, but not to overwater your cannabis plants, you will get those female ratios on the up and up. Overwatering or drying out of the medium will only produce more males. For consistent results in getting more females keeps those mediums moist.

Humidity. Now this is the tricky one. High humidity levels only promote fungi and mold development and lowering humidity levels is the way to cure most of this rot but by keeping those humidity levels up in or around the 70 rH factor will help to produce more females. If you have a low humidity grow room then you should get to hold of a humidifier. Now high humidity levels like 70rH cause the medium to dry out a lot quicker so you got to keep this under control too. Keep those mediums moist and those rH levesl at 70. This will help to improve those female to male ratios. Again, getting them on the up and up.

If you run the 24/0 photoperiod then do not allow those temps to go anywhere above 85F unless you have an equatorial strain. 75F is the best but going a little lower is not a problem for helping those female ratios. If you can get in at around 65F then those females are going to be popping up all over the place. The problem with this is that some growers like to use the 18/6 photoperiod and when the lights are off the temps drop from around 65F to 50F and even less. Try not to be below 55F because this has the adverse effect on the plants producing more males than females. Again between 65F and 75F is where you want to be during the 3rd to 4th week of vegetative growth, the preference being 70F.

Invest in a MH Light for vegetative growth. Dump the HPS bulb for flowering later. I have noticed that HPS lighting during vegetative growth simply sends those males to female ratios all over the place. With MH lamps the females are everywhere. Invest in some MH HID lights. It makes all the difference in getting those females to show more often. [COLOR="#0000FF]This is worth repeating! MH Bulbs produce more females under optimal conditions especially if they are present during the 3rd and 4th week of vegetative growth.[/COLOR] Surprising enough you can start seedlings under HPS and it will not have an effect on those female ratios. Again the 3rd to 4th week of vegetative growth is what is important here.

No stress during the 3rd to 4th week of vegetative growth. That is all there is to it. If you got your garden growing in optimal conditions without marijuana plant stress then the impressive 90% to 95% females start to emerge from standard cannabis seed packs. I find that topping is best done at the second to third week of vegetative growth but that this is a little stressful and can lead to those female ratios dropping again. Avoid topping or pruning if you are looking to up the female count.

That is all I have to say for the moment. These little snippets of information in conjunction with what DP uncovered have helped my female ratios considerably. Hopefully you can see the same results too."

I have to share that it's been a rough day, and this little bit of joy got me through a good hour. I had a blast. Nicely buzzed, Bob James in the background dictating the staccato beat of my fingertips on the iPad. Mmm...... That didn't include my stroll through the pages leading up to this. I've been meaning to visit here for a while. I have other things to do right now, but I'll be back. I'll try to give you reps for the original post, but my guess is you've been brilliant somewhere else and I won't be able to.

 

[photos]

love it sweety , and wow man that sst pheno pf is going to buzzzzzz to infinity and beyond and shigga your d pheno ia total polar opposite this thread just got twice as interesting.

 

[SweetSue]

He makes this tempting. Thankfully I'm space-limited, because I'm already running two community grows. I'm all caught up now Shiggity.

 

[flowerfarmer]

My Pineapple Fields

Not my preferred growth characteristics.

 

[ShiggityFlip]

Wow that is expressing Kali mist for sure. If she is a 12 week pheno she may yet make something out of those foxtails. I bet the smoke is going to be crazy. What are the smells on her?

 

[flowerfarmer]

I just rubbed a few bracts and sniffed. It was a wild tart smell I couldn't place. Maybe like apple? The buds would have been even more lanky if I hadn't plucked all the tips of the main buds.

 

[SweetSue]

She looks really wild and beautiful flowerfarmer.

 

[Stage]

High fellas,
Day 53 update on my pineapple fields quartet.

 

[ShiggityFlip]

Just beautiful Stage!

 

[Stage]

Yo shiggity,
When i took the pics they are just waking up and quite thirsty.

 

[photos]

thats extreme sativa foxtailing there ,thats going to be really good smoke flower farmer , stage your girls look great especially up on stage with bob!

 

[flowerfarmer]

My lanky sour apple haze smelling Pineapple Fields. She's a wild girl!

 

[flowerfarmer]

Ok so I am a bit bummed. out of the 3 I thought were female, only PF4 "Linda" is a girl. Congrats to OG, you can always pick em! I have had terrible female ratios this year and I think I can narrow it down to my high pressure sodium light in veg causing this issue. I never had the problem before but used to use a MH in veg. The new seedlings I have are under my LED with the veg only light on to flood them with blue. 3-4 week supposed to be most important.

And by the way I put six more Pineapple fields seeds into a paper towel today. I will not be discouraged!!!I will keep planting until I get all 4 phenos!

out of 11 Dynasty seeds I've poped so far I've only found one female and I was using specific blue LED panels with 16 hour lights on and 8 hours lights off at 72 degrees with 75% humidity. Most every other regular seed in my tent ended up female. I've been studying around and found that a lot of people have a hard time finding females in their Dynasty gear.
The PF i got is the most undesirable pheno for me.
I had 5/5 Karma Headbanger and 2/3 cornbread be female all sprouted and grown in the same conditions.

 

[photos]

out of 11 Dynasty seeds I've poped so far I've only found one female and I was using specific blue LED panels with 16 hour lights on and 8 hours lights off at 72 degrees with 75% humidity. Most every other regular seed in my tent ended up female. I've been studying around and found that a lot of people have a hard time finding females in their Dynasty gear.
The PF i got is the most undesirable pheno for me.
I had 5/5 Karma Headbanger and 2/3 cornbread be female all sprouted and grown in the same conditions.

Really me too I got 3 females from 11 reg seeds of dynasty's phc, and had only 3 other males from around 30 plants so I too have found dynasty's seedstock to be high in males, wow this is across 2 strains now, the phc fems I got we're pheno 1 pheno 2 and pheno4 the mutant and 8 males

 

[ShiggityFlip]

I'm 4/7 female for the last batch of PF. That's a good ratio for me. I have a bunch of megafauna planted so we will see this next round. I am not sure how regular seeds of one comapany to the next would have more or less females. It might be true for a particular breeding parent, but PHC and PF are two different genetic makeups. I will say though that my Dynasty keepers are my favorites in the garden (besides twister). I have the megafauna under a 6400k light so should definitely be enough blue!

Here is some Pineapple fields Linda at 59 days. (Harvest)

 

[photos]

I'm 4/7 female for the last batch of PF. That's a good ratio for me. I have a bunch of megafauna planted so we will see this next round. I am not sure how regular seeds of one comapany to the next would have more or less females. It might be true for a particular breeding parent, but PHC and PF are two different genetic makeups. I will say though that my Dynasty keepers are my favorites in the garden (besides twister). I have the megafauna under a 6400k light so should definitely be enough blue!

Here is some Pineapple fields Linda at 59 days. (Harvest)

Without a doubt the fems are all trich monsters up there with the best in any garden shiggs they are stunning and the males i got are all great aswell.

Just I never usually get so many.

 

[ShiggityFlip]

One of the things I have thought about in that regard is this. We all know that environment can change a seedlings sex. But always some will still come out female and some male. So out of 10 I would think that 3 will automatically be female and 3 male ( on average. The other four will be determined by environment. Sometimes the 3 male or 3 female may vary because of random picking of seeds and be 2 or 1 either way. But the variable four in the middle are prepped to go either way depending on the environment. I think in the end that these variable four are probably not the keepers either male or female. The keepers are going to be the males and females that would have ended up male or female no matter what the conditions. So for my first round of Huck Kush I got 3 females and 3 keepers. For first Pineapple fields one female and 1 keeper. This time around I got 4 females out of 7 seeds...
Normally if we get 1-3 real keepers out of a pack we are stoked. In this case the seeds sorted them out for me lol.

In Flowerfarmer's case he got one female and it looks crazy like ace seeds Ghana. It looks nuts...all foxtails...but I bet she is some real fire. Time will tell.
In the meantime with the megafauna I will try to keep them evenly moist, under 6400k, and at a 70F temperature. We will see if adhering to the female inducing conditions will bring more females. For all my seeds this past time I got 16/26 females doing just that.

I think the practice of letting them go to full dryness in veg that I was doing before coupled with my HPS lighting. But maybe I shouldn't! Maybe letting the seeds pick the keepers is better lol.

 

[Stage]

out of 11 Dynasty seeds I've poped so far I've only found one female and I was using specific blue LED panels with 16 hour lights on and 8 hours lights off at 72 degrees with 75% humidity. Most every other regular seed in my tent ended up female. I've been studying around and found that a lot of people have a hard time finding females in their Dynasty gear.
The PF i got is the most undesirable pheno for me.
I had 5/5 Karma Headbanger and 2/3 cornbread be female all sprouted and grown in the same conditions.

Hey there fellas
Flower farmer I had similar results with the PF pack it ran.
My fem to male ratio was awful.
Out of 6 I got only 1 female but she's a keeper imo.
Not griping. ...just sayin..

 

[flowerfarmer]

I'm not that worried about my male/female ratio because I have so many plants and seeds already. I'm sure I'll get more of what I want with the rest of the PF and HK packs. I may not like the structure of all the dynasty plants but so far the way the buds form, when they form, are very tight and desirable. I'm am collecting a few more Dynasty strains for the vault.

My pineapple fields has finally started developing some solid little crazy buds and more aroma. The smell is getting good, like sour apple and the buds have lots of trichs. I'll try and get another pic soon. I'm thinking it has about 2 more weeks.