Will it color

I've grown a jack herer myself and it turned beautiful shade of purple, chapter 4 in my diaries. 😆 So who knows its possible, certainly hope so, there are things you can do to help it along. Here are some tidbits I've learned over years to promote anthocyanin production. Anthocyanins absorb blue, blue-green, and green light. Therefore, the light reflected by leaves containing anthocyanins appears red. Unlike chlorophyll and carotene, anthocyanins are not attached to cell membranes but are dissolved in the cell sap. The color produced by these pigments is sensitive to the pH of the cell sap. If the sap is quite acidic, the pigments impart a bright red color; if the sap is less acidic, its color is more purple. Anthocyanin pigments are responsible for the red skin of ripe apples and the purple of ripe grapes. A reaction between sugars and certain proteins in cell forms anthocyanins. This reaction does not occur until the sugar concentration in the is quite high. The reaction also requires light, which is why apples often appear red on one side and green on the other; the red side was in the sun and the green side was in shade. Anthocyanin production is primarily genetic, amount is controlled by genes that are expressed in response to environmental cues. The range and intensity of colors is greatly influenced by the environment. Low temperatures destroy chlorophyll, and if they stay above freezing, promote the formation of anthocyanins. Bright sunshine also destroys chlorophyll and enhances anthocyanin production. Dry weather, by increasing sugar concentration, also increases the amount of anthocyanin. So the brightest autumn colors are produced when dry, sunny days are followed by cool, dry nights. Nature knows best. Normally I'd keep a 10-degree swing between day and night but ripening will see the gap increase dramatically to promote anthocyanin production. research indicates that increased exposure to blue light generally leads to higher anthocyanin production in plants, meaning more blue light results in a greater accumulation of anthocyanin pigments within the plant tissue; this is because blue light acts as a signal to stimulate the biosynthesis pathway for anthocyanins. Blue light is detected by specific photoreceptors in plants, triggering a signal transduction pathway that activates genes responsible for anthocyanin synthesis. Blue light is detected by specific photoreceptors in plants, triggering a signal transduction pathway that activates genes responsible for anthocyanin synthesis.

No, not normally for this strain is the short answer. If it is not showing any coloration as yet, it is unlikely to happen at all. If the temps at night are significantly lower than when your lights are on, then some purple coloring may occur. But no, Jack Herer is not a purple or red strain. Also, NEVER grow at 24/0..........all cannabis plants, autos included, NEED a dark period every 24 hour cycle for a correctly functioning metabolism. A plant with an incorrectly functioning metabolism will never reach its full potential. There are certain metabolic processes a plant does during the night period that it can not do when the lights are on, and without doing these night time processes, your plants will be functioning incorrectly. 18/6 is optimal.

Hi Jack Herer crossed with Ruderalis for an auto strain can indeed develop purple or red hues under certain conditions. First the genetic but other condition like The color change in cannabis plants is often influenced by factors such as temperature, pH levels, and nutrient availability. Cooler temperatures, especially during the night, can enhance the expression of anthocyanins, the pigments responsible for purple and red colors

Seedfinder.eu has the biggest database, check as 01000011001 said , did your parents had any funky colours in previous generations, then you can expect, but usually on week 6 of flower you know it from view if its a funky colour plant ...

Did either of the parents? lol... you'd know better than anyone else. it's a genetic probability, and even if the parent plants didn't display the trait it may be lurking waiting for the right parental pairing. You'd need to know the lineage of that plant, not the generalized lineage of "jack herer". just because 1 breeder calls it "jack herer" or anything else doesn't mean it's closely related to the real jack herer. It might be, but not something you can assume. More often they paid through the nose for a genuine (or not, lol) jack herer cut then crossed it with one of their own inhouse plants. i've seen this falsehood over the years: 3:1 ratio for recessive traits etc.. this is a great example of how dangerous a little knowledge can be. 3:1 ratio only results from a very simple trait wiht 2 alleles. these traits are often more complicated and the percentages are different for each case. A punnet square can visualize why -- it's a matrix of the trait's alleles that will tell you the ratio of phenotypes seen. It is not always 3:1. Aa x Aa ....../A...../a A.../AA../Aa a.../Aa.../aa You'll have to pretend this is a box with 4 quadrants. the alleles are along the length and width and a matrix forms. A 2x2 box is the simplest punnet square and only used to teach the most basic concepts of genetics in the lowest level biology class you can take. "Alleles" are the small selctions of chromosomes involved for the trait being studied. They always come in pairs because you or a plant have a pair of each chromosome - one from each parent. "Triploid" being an extra set beyond that.. then the matrix ('punnet square-esque,' if not still) needs to be 3-dimensional, maybe? lol, more advanced than anything i learned, another example of too little knowledge being dangerous and leads to assumptions. Not 100% certain how a triploid would be modeled for probability of traits displayed from parents. When you cross a simple 2-allele trait, you get the 3:1 ratio. "AA" and "Aa" will display dominant trait, "aa" will display the recessive trait. Not all traits are 2 alleles. Some are much, much more complicated, like plant height (or human height for that matter). It's not always a binary outcome, sometimes it is a spectrum of what is seen. Some are just 'potential' like height.. treat the plant poorly and it won't reach potential no matter what the genetics are. so, when you see someone say all recessive traits show up at a 1:3 ratio, you know they really have no clue about genetics and just making stuff up despite it all being reference material of existing knowledge anybody can look up and learn without guessing and putting out bad information into the world to screw people up.