DonaldNice
Active member
Quote below is from the following page https://terpenesandtesting.com/reverse-the-sex-of-cannabis-plants/ and the subsection refers to the use of Ethephon as opposed to CS, GA, STS
"The plant growth regulator ethephon is also of interest for cannabis breeders. In the research paper “Effect of Timing of Ethephon Treatment on the Formation of Female Flowers and Seeds from Male Plant of Hemp (Cannabis sativa L.),” ethephon was utilized to develop a self-fertilization method by forming female flowers (and seeds) from male plants of dioecious hemp. The researchers sprayed plants with 500 mg per liter of ethephon one to two weeks after primordia formation. [4] This resulted in the formation of female flowers with five stigmas (versus the normal two) on male plants. The resulting seeds tended to be smaller and have a lower germination ratio than regular female plants, however the number of seeds harvested was greater than normal. The research team recommends that hemp plants should be treated with ethephon soon after primordia formation to induce the formation of more female flowers on the male plants."
I wanted to confirm two things if anyone can help.
1). Does this mean the males they reversed weren't true breeding males? They don't reference the sample size in the study so may have to try and find the original research article if not behind a paywall.
2) In the same way that a selfed female produces feminised seeds, would this produce masculinated seeds?
"The plant growth regulator ethephon is also of interest for cannabis breeders. In the research paper “Effect of Timing of Ethephon Treatment on the Formation of Female Flowers and Seeds from Male Plant of Hemp (Cannabis sativa L.),” ethephon was utilized to develop a self-fertilization method by forming female flowers (and seeds) from male plants of dioecious hemp. The researchers sprayed plants with 500 mg per liter of ethephon one to two weeks after primordia formation. [4] This resulted in the formation of female flowers with five stigmas (versus the normal two) on male plants. The resulting seeds tended to be smaller and have a lower germination ratio than regular female plants, however the number of seeds harvested was greater than normal. The research team recommends that hemp plants should be treated with ethephon soon after primordia formation to induce the formation of more female flowers on the male plants."
I wanted to confirm two things if anyone can help.
1). Does this mean the males they reversed weren't true breeding males? They don't reference the sample size in the study so may have to try and find the original research article if not behind a paywall.
2) In the same way that a selfed female produces feminised seeds, would this produce masculinated seeds?
