is a regular seeds sex predetermined before its planted? - Breeder's Laboratory - International Cannagraphic Magazine Forums

OrganicGrowerMi · 06-16-2013, 09:20 AM

I was wondering if the environment plays a role in determining the sex of the seed ? Or is it already determined before its planted? Thanks

Sirius seeds · 06-16-2013, 10:37 AM

hello fellow, i think the sex determination of the seed is genetic but when the plant grows the environement plays a role.

some interesting reading
https://www.ias.ac.in/jarch/jgenet/19/65.pdf

WelderDan · 06-16-2013, 02:25 PM

With seeds, you get a 50/50 shot at male or female. IMO, warmer temps during the seedling stage result in higher male ratio, cooler temps result in a higher female ratio.

Now that's anecdotal evidence as observed by me. Take it with a grain of salt

purple_man · 06-16-2013, 02:47 PM

light spectrum and nutrients availibility play an important role too... back in the days i used to start seeds in plagrons grow mix (soil ec: 1,4) and hps light. used to get abour 50/50 males/females. once i started using cocos or seedling soil and metal halide, and feeding the babies with 0,7 ec after the 1st set of leaves, i started getting rather 80/20 or 90/10 females/males. also, it seems that the higher the sativa percentage, the higher the female ratio... with 100% sativas i mostly get 90 - 95% females.

blessss

OrganicGrowerMi · 06-17-2013, 12:01 AM

Thanks ... appreciate the info.

06-16-2013, 09:20 AM	#1
OrganicGrowerMi Member Join Date: Mar 2013 Location: In my growroom Posts: 179	is a regular seeds sex predetermined before its planted? I was wondering if the environment plays a role in determining the sex of the seed ? Or is it already determined before its planted? Thanks
	Quote

06-16-2013, 10:37 AM	#2
Sirius seeds Banned Join Date: Nov 2009 Location: Sirius A or B Posts: 85	hello fellow, i think the sex determination of the seed is genetic but when the plant grows the environement plays a role. some interesting reading https://www.ias.ac.in/jarch/jgenet/19/65.pdf
	Quote 1 members found this post helpful.

06-16-2013, 02:25 PM	#3
WelderDan Senior Member Join Date: Feb 2010 Posts: 2,465	With seeds, you get a 50/50 shot at male or female. IMO, warmer temps during the seedling stage result in higher male ratio, cooler temps result in a higher female ratio. Now that's anecdotal evidence as observed by me. Take it with a grain of salt __________________ Cherry Bomb x C99 Real knowledge is to know the extent of one's ignorance. - Confucius
	Quote 1 members found this post helpful.

06-16-2013, 02:47 PM	#4
purple_man Senior Member Join Date: Aug 2008 Location: up in smoke Posts: 1,521	light spectrum and nutrients availibility play an important role too... back in the days i used to start seeds in plagrons grow mix (soil ec: 1,4) and hps light. used to get abour 50/50 males/females. once i started using cocos or seedling soil and metal halide, and feeding the babies with 0,7 ec after the 1st set of leaves, i started getting rather 80/20 or 90/10 females/males. also, it seems that the higher the sativa percentage, the higher the female ratio... with 100% sativas i mostly get 90 - 95% females. blessss
	Quote 1 members found this post helpful.

06-17-2013, 12:01 AM	#5
OrganicGrowerMi Member Join Date: Mar 2013 Location: In my growroom Posts: 179	Thanks ... appreciate the info.
	Quote