Reversed Backcrossing:)

[englishrick]

cannabis has evolved the "secretion" of THC ,and other chemicals, in order to block UV rays from mutating cell DNA. the oldest strains are thought to have evolved in mountain areas where UV's are higher. but you already knew that, or did you, i dont know what you know rick your a crazy guy!


where is this thread going?

what do you want to do? or are you just trying to learn some stuff? and have random banter.

"i may be stipid but i know what love is"........

this banter is getting somewhere,,im sure!!

so UV is one of the keys to mutation or evoloution!....very interesting!!

il post some picks of the Cheese sprayed with STS soon



im glad your keeping track "lost at sea"

 

[Forest20]

...
so UV is one of the keys to mutation or evoloution!..

Could be same with everything on this plant I do not know enough to declare anything I'm saying to hold any backing of my statements...If their was a university for marijuana. I'd be right behind englishrick in class ask all these questions

 

[englishrick]

hay forest,,,when we sort all this out....lets get a shrimpin boat,,,

 

[englishrick]

whats gona happen it i remove the silica from my envioment,,,,,will cells mutate easly?

 

[lost in a sea]

Got any proof? One word: speculative.

uv rays have been the stress factor that has acted on cannabis until its DNA has experienced a natural mutation creating a "freak" or the first plants ever to have THC glands of some form. once this/these individuals existed they were far more able to pass on their genes and through generations the THC levels will have peaked out at the most econimic level for the plants.


i saw a vid in uni where some oxford uni lecturer had done some genealogical work with ganja and the oldest strains he tested were sativas from a few random mountainous areas and he was saying exactly what i and the study below proposes.

Possible role of ultraviolet radiation in evolution of Cannabis chemotypes

JournalEconomic BotanyPublisherSpringer New YorkISSN0013-0001 (Print) 1874-9364 (Online)IssueVolume 37, Number 4 / October, 1983DOI10.1007/BF02904200Pages396-405Subject CollectionBiomedical and Life SciencesSpringerLink DateThursday, May 15, 2008Add to marked items
Add to shopping cart
Add to saved items
Permissions & Reprints
Recommend this article


(1) Dept. of Pharmacognosy, University of Mississippi, University, 38677, MS(2) Present address: Department of Biology, University of Missouri-St. Louis, USAReceived: 20 March 1981 Accepted: 20 January 1983

Abstract: The damaging effects of UV-B radiation have apparently affected the amounts of ultraviolet-absorbing secondary compounds in some plants. A similar role for Δ9 tetrahydrocannabinol may explain the high levels of this compound inCannabis from areas of intense ambient UV-B. Further research is needed to determine whether UV-B radiation serves only as a selection pressure or if UV-B-induced stress may also directly stimulate production.


i have read more on this subject il cite some other studies if you want. just the front page of this guys study has more facts than this whole thread. i just wish i still had proper access to the online scientific journal databases its like another world! where everyone cites every sentence.

 

[englishrick]

whats the deal with silica....How does it improve cell development?

Silica is readily deposited into the cell walls of plants during cell development and division. This produces a "silica-cellulose framework" which in turn strengthens cell walls. A little like adding mortar to brickwork. It has been demonstrated by way of scanning electron microscopy and energy dispersive X-ray analysis that once deposited into cell walls the silica cannot be remobilised by the plant. It is recommended that a continuous supply of BUDLINK be added to the nutrient solution thus allowing its incorporation into new growth from transplanting onward.

 

[lost in a sea]

whats the deal with silica....How does it improve cell development?

Silica is readily deposited into the cell walls of plants during cell development and division. This produces a "silica-cellulose framework" which in turn strengthens cell walls. A little like adding mortar to brickwork. It has been demonstrated by way of scanning electron microscopy and energy dispersive X-ray analysis that once deposited into cell walls the silica cannot be remobilised by the plant. It is recommended that a continuous supply of BUDLINK be added to the nutrient solution thus allowing its incorporation into new growth from transplanting onward.

you explained how in the first couple of setences of that paragraph.

 

[englishrick]

so maybe limited silica is the reason why hydro weed can hermi so easy?

 

[lost in a sea]

hey its possible, plants have evolved in soil so if you take a fish out of water what happens?

but it could be alsorts of trace elements that are not available to the plant in enough different forms that causes the required "stress" to cause a higher hermie rate.

hermies can be bred away from it just takes successive generations, and a keen eye

nothing is a perfect science, especially when humans are controlling the stakes. evolution by one simple deffinition is a genetic reponse to stresses, a stress factor is anything that acts on a plant that it is not genetically equipped to deal with.plants ,like all organisms, maintain a evolutionary arms race with the world around them and are ever sensing and reacting to changes. if you move the goal posts do you change the game? with evolution you certainly do.


think about summit for me , according to recent studies plant species bred predominantly in hydro systems are seeing a decline in root strength in soil. molly cottled individuals have been used for breeding that would have been poor if grown in soil, a plant with 1/10th the rooting stock of a strong individual can still outyield it due to the efficiency of hydroponics.
in nature these crappy genes for root strength would never be chosen for so we should make shure we dont select such individuals to breed from

selection for breeding should be done soley in soil to make sure that the future progeny will perform well in soil, we owe it to this plant to make sure the future decendants we decide the fate of, will be able to perform in soil.

 

[GMT]

forest seems to agree with males coming from xx chromozone crosses....

Then sorry, but Forest is wrong too.

Also Rick, when you cut and past, its better to put it into quotes at least, so that people reading know the difference between what you type and what you're copying from the net. Other wise they may think that what you are copying is your own work, and then give what you say the same level of respect that they can tell what you are copying deserves. Then they will be lead down a dark alley and get mugged by genetics.

 

[englishrick]

your right to pull me on the quote thing......from now on il put everything into

an

...

im not so sure we understand forest "yet"

 

[XyZ]

Also Rick, when you cut and past, its better to put it into quotes at least, so that people reading know the difference between what you type and what you're copying from the net. Other wise they may think that what you are copying is your own work, and then give what you say the same level of respect that they can tell what you are copying deserves. Then they will be lead down a dark alley and get mugged by genetics.

indeed, quoting information is not knowledge

 

[englishrick]

atleast i admit it,,,,,,,,its a mistake of me not use the

function......

i do use it , but i forget sometimes........its not intended to mislead

 

[Forest20]

I have no idea about fem seeds at all...I may be wrong on when i say "vert".. but in Cubing is it possible to get male seeds?..I just do not know enough

 

[GMT]

cubing is backcrossing an offspring to the parent, then backcrossing one of those offspring to the original parent, then backcrossing one of those off spring to the original parent and so on. Whether you get males in the offspring generation depends entirely on whether you use a male in the breeding of that generation. If you "reverse" a girl so that she generates pollen, and then use that pollen on another girl, then no you wont get any males in the offspring.

 

[Forest20]

So GMT their is no way at all a fem seeds made this way would never produce male?

 

[grimweeder]

they will never produce a true male maybe a hermie if the genetics are shit but there will still be no y chromosomes jus xx so its impossible to get a actual male from femmed beans

 

[cannaboy]

You lie grimweeder&GMT I have a pack of Euphouria fem all of which are mutants..A yy all true male has been found last night..Honestly,,,, unless dp lie about the fem thing but always if enough seeds are made 1 in a million can be found...

 

[GMT]

You lie grimweeder&GMT

Be nice now and you may get the time taken on you to explain where you are wrong. Be rude again and you wont learn anything.

 

[englishrick]

Be nice now and you may get the time taken on you to explain where you are wrong. Be rude again and you wont learn anything.

GMT chats from the heart,,,,,its true!!,,,,your time is defo worth my respect,,


a YY male male is mighty-hard to document!!,,,,,


an for anyone who cares,,,,,i yealded quite a few Cheese S1 seeds the other week,,,i allso collected some "cheese polen" to hit a Blues clone soonish,,

Blues x Cheese,,,,,ive got high hopes for this cross,,,,,,i think it will be amazing, strait off the bat..