Breeders focus on plant characteristics when breeding cannabis seeds such as their potency, flavor, yield, smell, resistance to pests, color, growth stature and other characteristics. Amsterdam Seed Supply – Not sure when to harvest Marijuana seeds? Look no further – Buy Marijuana seeds – Discreet shipping Does anyone have any idea how long it takes a seed to form and mature after pollinating ?
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Breeding Cannabis Seeds
Step #1 For Cannabis Seeds
You will want to begin by choosing parents for breeding cannabis seeds. Selecting the female plants for breeding is much easier than selecting male plants.
Breeders focus on plant characteristics such as their potency, flavor, yield, smell, resistance to pests, color, growth stature and other characteristics when choosing a female to breed cannabis seeds.
Choosing male plants is not easy since males don’t reveal their characteristics like females do. Some breeders will rub their fingers on the male plants stem to be able to better smell their resinous odor. The best way to test for male characteristics is by a progeny test where the male pollen is harvested and then placed on certain plants.
These plants will create seeds and the next season those seeds are planted then grow up to show off their characteristics. Once a male plant is selected for breeding the other male plants are then cut down and destroyed.
Step #2 Is Collecting Pollen
You will collect pollen from the male plant that you have chosen and strip away all extra male branches to guard against random pollination then isolate the male as soon as anthers show. Before the anther’s open, you will place a plastic bag over the branch and tie it to prevent it from falling.
You will keep the bag over the branch for several days to collect pollen then carefully remove the branch and bag so pollen does not escape from the bag.
Step #3 Storing Cannabis Seeds’ Pollen
You can now either store the male pollen indoors since pollen in a natural condition in the wild will not last for long. Be sure that the storage container that the pollen is stored at low temperatures and moisture since as high temperatures, as well as humidity, will destroy pollen very quickly.
Pollen that is harvested can be stored for several months when it is stored in a freezer. To store pollen in the freezer you will first need to use a fine screen to filter out the plant leaf matter from the anthers that may have fallen into the bag.
If these are not removed it can contaminate the pollen and cause it to spoil. Before you filter the plant material you will want to lay down some wax paper or place a plate that is clean to capture the falling pollen.
You can then place the pollen in a sterile container, tube or sealed bag to make sure that the pollen for cannabis seeds is clean and sterile. When you are freezing the harvested pollen you will not want to continually freeze and thaw it out since this will diminish the viability of the pollen. Use only what is needed and leave the rest frozen.
Step #4 Using Pollen For Cannabis Seeds
Pollination occurs when male pollen comes into contact with the female pistil. Depending on which plant variety you choose to breed the female flowers will be ready to be pollinated within two (2) to twelve (12) weeks after the flowering cycle has been introduced to the plants.
The more pistils that are visible when pollinating then more cannabis seeds will be created. Female pistils that are turgid and most often white or off-white are the best to be pollinated.
Any pistils that are rust- or brown-color are beyond the point that you can fertilize. To pollinate a female plant, you will first cover the female branch with a pollen-filled bag then briefly shake the bag to make sure the pollen makes contact with the female pistils.
You can leave the bag over the branch for two (2) days to ensure pollination occurs. Many times cannabis breeders will contain the male pollen and pollinated-female plants in a separate room to prevent other cannabis plants from being fertilized.
After a few days in the pollination room, the female plant is sprayed with water to destroy the pollen that remains on the plant before the female plant is moved back into the flowering room. This is to prevent any remaining pollen from fertilizing other plants.
Also be sure to spray any room that you have allowed for pollination to occur. Another way to pollinate a female plant is to use a small paintbrush to ‘paint’ pollen onto the pistils for cannabis seeds. You will simply dip the paintbrush into a container of pollen and gently brush the pollen onto a female plant’s flowers.
Be sure that all fans are off to prevent the pollen from being blown around the room. This method is perfect for growers who want to have cannabis seeds created on only a few branches and leave the rest of the female flowers sinsemilla.
After a plant is fertilized the cannabis seeds will be ripe in about six (6) weeks but could be ready earlier. When seeds are mature they will split the calyxes open and make the cannabis seeds visible.
The seeds that are most ripe are seeds that have a dark brown or grey color and well-mottled (tiger striped) and will set loosely within the calyx. Seeds that are not viable and immature will be green, yellow or white in color as well as will be in sealed calyxes.
If you have seeds that are not mature by the end of the plants life-cycle then you can eat the immature cannabis seeds. Plants that are sativa dominant tend to allow seeds to fall from their small, lightly packed buds and while indica dominant plant seeds tend to stay within the large, densely packed buds.
Seeds are harvested from buds by either manually finger-picking each of the seeds out or by crushing the buds to separate the bud from all seeds. Seeds are often tested for their viability with a simple press between your thumb and index finger to test the seeds firmness.
If the seed splits open with this test it means that the seed is not viable or immature. If the seed is very firm then those cannabis seeds will tend to be viable.
Once seeds have broken the calyx then they are ready to plant immediately, if you choose to do so. Otherwise, the seeds may fall off the plant and germinate below the plant.
These ideas and methods are only a guideline for small-scale cannabis seed production. If you plan on producing massive amounts of seeds you will need to adjust what is done to be effective.
Many breeders will clone a male plant so they have multiple-males within a very large room that are able to pollinate many, many females. It all depends on what you plan on doing.
Let us know what you think.
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When To Harvest Marijuana Seeds?
After the whole process of germination, growth and flowering, a lot of growers ask themselves when to harvest Marijuana seeds. Usually, the breeders will include a suggested flowering time for each strain, but as a rule of thumb, Indica marijuana plants harvest in 6-8 weeks while Sativa Marijuana plants take 10-12 weeks.
Look for these signs for when to harvest Marijuana seeds
You can also judge the ripeness of the Marijuana by taking a look at the trichomes; or little hairs/crystals on the flowers and surrounding areas of the Marijuana plant. If they are transparent its still too soon, if they are milky white they are ready and if they turn brown they have become over-ripe. It is also advisable to follow the instructions to harvest Marijuana seeds on the packet since most reputable breeders also have a tried and tested flowering time for optimum ripeness, potency and flavour of a Marijuana strain.
If you meant when to harvest seeds from cross-pollinated Marijuana plants, then the seed will fall from the flower by itself once it is mature and ready to germinate into another Marijuana plant. Usually, as a best practice to harvest Marijuana seeds, some growers wait for the whole flowering cycle to end just as if they were harvesting the flower.
You might find our FAQ Submission How Do I Harvest My Plant? useful
how long for seeds to mature
Thanks Tips, I figured it had to take a least a couple weeks to a month, I pollinated 2 “Bubbalious” with my own Hindu Kush and Bubba- pollen from my first harvest of 2008. Mybe I’ll bust one site open and see !!
I was wondering the samething. I read it was 4-6 weeks for seeds to mature after you pollinate. I have a pollinated plant now that I pollinated 9/9/08 and most of the calyxs look like they are about to burst open any time now. I was thinking it was pretty quick for it to look like that. I was just gonna wait till they open up on there own and I can see them before I do anything.
I just pulled one of the seeds about to pop off mine i pollinated less than 2 weeks ago. I am germing it for fun to see and i think it is starting to crack! A few of the pods will open on theri own early and i her even pop a few seeds out. Some look like they in for the long haul.
I also heard this too, but I did read somewhere on this site where a guy was saying he used fresh seeds just pulled from a female and they germinate fine . No dry time at all. From calyx to germinating. So I don’t know how true this is any more if it can be done with no dry time. But I really have no idea. Just going by what others have posted about.
My experience has always been about 4 weeks to finish. If possible leave your seeds in the bud until ready to use, no contaminates that way..
old post, i know but i have had seeds germinate within 3 weeks of pollination of the flower. i had a nice skunk #1 growing outdoors one time, and decided to pollenate a couple of branches ( i use the old tried and true Q tip pollination method. collect your pollen on a Q tip from the male flowers elsewere, take it into the flowering room,pollenate the branches, and dispose of the Q tip). i noticed nice fat seeds about 2 weeks later. right after that we had a freak storm, some of the seeds became dislodged, and 3 days later i noticed sprouts under the brackes where the seeds were. pretty amazing.
For average strains seeds mature between 2-4 weeks. But like others said, it is dependent on what strain it is. I also made my own cross between auto ruderalis strain with a photoperiod strain. These you should just like with any strain wait til the pods open. Cali connect jam crazy x dina fem critical auto. Male had resin glands and the auto fem was resinous. Place a paper down on the base to catch the seeds when they drop. As with the flowering time its the same with breeding patience. Its fun to you get to play god mwahhh hahaha
Also just crossed DNA with Annunaki hash plant male with delicious seeds super critical sensi star,also used tthe male to cross with my prized satori.
Don’t go by time, go by what you see. Once the green around the seed goes tan and cracks – seed is ready. just like flower, some buds/seed mature before others, so you should harvest bud by bud. I have always pollinated the whole plant – due to seed development steal away good bud. I have never had good luck trying to get a plant to seed and give me good bud.
I let mine go until some are ready to fall out. On some plants I’ve pollinated a branch or two. The unpollinated bud is ready before the seeds are fully ripe. In that case you have to harvest at different times.
ime while you may see some seeds form after a couple of weeks, they won’t be viable/ready for 3-4 weeks after pollination with most cuts. I also wait 3-4 weeks after harvesting them as any tests I’ve done have shown poor germ rates until they hit 3-4 weeks from harvest, at that point they’re pretty well 100%.