how to cause a gender switch in plants

[tat2jay]

i was wondering if any knows of a reliable way to cause a plant to switch gender from female to male, to pollenate a different female to produce some female seeds? i have tried a few different things to stress out a few plants to see if i got any results with no luck. any advice would be sweet. i am working with a few differnt strains and want to eliminate the need to grow and then throw half the plants out once i find out there male. i also am going to try and make some feminized auto strains.

[jcj77d]

Originally Posted by tat2jay

i was wondering if any knows of a reliable way to cause a plant to switch gender from female to male, to pollenate a different female to produce some female seeds? i have tried a few different things to stress out a few plants to see if i got any results with no luck. any advice would be sweet. i am working with a few differnt strains and want to eliminate the need to grow and then throw half the plants out once i find out there male. i also am going to try and make some feminized auto strains.

gibberellic acid when sprayed on female flowering plants will cause them to go hermi, thus u get femenized seeds.
Creating feminized cannabis seeds is an art. Just like art, there are a few different methods of application. I have used gibberellic acid, pH stress, light stress, and fertilizer stress to force my female plants to make seeds. All of these methods are harsh on the plants, and some, like the gibberellic acid, are not organic. In my search for cleaner, more earth-friendly ways of working with the cannabis plant, I have found a new way to make feminized seeds.

Feminized seeds occur as a result of stress, rather than genetics. All cannabis plants can and will make male flowers under stress. Certain strains like a higher pH, some a lower one. Some like a lot of food, some like much less. There is quite a lot of variety in marijuana genetics, and you can’t treat every plant the same way.

It takes many harvests before you really get to know a particular strain. Just like getting to know human friends, it takes time. I have grown the same strains for close to a decade, and am truly getting to know every nuance the different plants exhibit. I can recognize them from a distance. I must say that I get a lot of help from my friends, both in making seeds and in learning new and better ways of working with this sacred plant.

I named this new method "Rodelization," after a friend who helped me realize and make use of this way of creating female seeds. After growing crop after crop of the same plants in the same conditions, I noticed that if I flowered the plants 10-14 days longer than usual, they would develop male "bananas." A male banana is a very slight male flower on a female marijuana plant that is formed because of stress. Usually they do not let out any pollen early enough to make seeds, but they sometimes do. They are a built-in safety factor so that in case of severe conditions, the plant can make sure the species is furthered.

To me, a male banana is quite a beautiful thing. It has the potential of making all female seeds. Many growers out there have male-banana phobia. They see one and have heart palpitations, they want to cut down the entire crop, or at the very least take tweezers and pluck the little yellow emergency devices out. I call them "emergency devices" because they emerge at times of stress.

In the Rodelization method, the male banana is very valuable. After growing your female plants 10-14 days longer than usual, hang them up to dry, then carefully take them off the drying lines and inspect for bananas. Each and every banana should be removed, and placed in a small bag labeled very accurately. These sealed bags can be placed in the fridge for one or two months and still remain potent.

For the next phase, you need to have a separate crop that’s already 2 1/2 weeks into flowering. Take your sealed bags of pollen out of the fridge, and proceed to impregnate your new crop of females. To do this, you must first match the female plant and the pollen from the same strain in the previous crop. Shut all the fans in the growroom down. Then take a very fine paintbrush, dip it in the bag of pollen, and paint it on the female flower. Do this to each different strain you have growing together. I have done it with up to 10 different kinds in the same room with great success.

I use the lower flowers to make seeds, leaving the top colas seedless for smoking. This method takes time (two crops), but is completely organic, and lets you have great-quality smoke at the same time you make your female seeds. If you’re one of those growers who’s never grown seeds for fear of not having something good to smoke, you will love this method.

You can also use this pollen to make new female crosses by cross-pollinating. The older females with the male bananas can be brought into the room with the younger, unpollinated females after they are three weeks into flowering. Turn all of the circulation fans on high, and the little bits of pollen will proceed to make it around the room. Do this for several days. Six to seven weeks later, you will have ripe 100% feminized seeds; not nearly as many as a male plant would make, but enough to start over somewhere else with the same genetics.

As a farmer who has been forced to move his genetics far away from where they started, I know very well the value of seeds.

[tat2jay]

so theres no need to try and find a way to get gibberillic acid, all i have to do is make the plants hermie on me?? if thats the case why do people freak out so much if they get one male flower on a female plant? why not just take the few female seeds you might get from it. im guessing it wouldnt make the pot that much less potent.
was also wondering, i had just pollenated a few different strains with a male autoflowering strain i got in a mixed pack to try out some lowlife seeds, and its almost harvest time now, should i dry them out before germinating them, and would i need to do some back crossing or would i be ok to use them for an outdoor harvest this year? i have read that crossing strains can make the first batch of seeds finicky plants.
i am growing afgani, nl, hashberry and some of the autos in between. they are in a grow closet that i built but i am not yeilding close to as much as some of the peoples closet set ups i see on here. would i be better off trying a bubble bucket with less, but bigger plants? i am a huge fan of the soil, its super reliable and the last few batches came out sooo good, but all of us could do with a bigger yield. i gave a few seeds to a friend and he used shultz nutes and mollassas, his came out way more dense, but mine were way more of a light lime green with tons of sticky trichs, and his was way more of a dark green with a different smell to it. we planted at the same time and harvested with in a week of each other and he had twice the weight i did but his shit didnt taste, smell or feel as good as mine did, any way to add some density to my next batch without sacrificing taste or smell? right now i am using neptunes harvest fish emulsion organic nutes in organic mg soil..all i could find at the time...i had pretty good results, but weight was lacking. help....

[plugged]

Use "Stamen-it" from PG-Solutions. Spraying a plant that starts as a female can make it show only male flowers.