SamuiGrower

That’s the dribble part. The actual landrace Thai Sativa is NOT purple. There are no equatorial landrace purple sativas. Hybrids, another story completely. So, saying “purple Thai weed is one of the oldest strains……” is utter nonsense. Anybody can call any strain, seed, phenotype, cultivar anything they want. In my dispensary in Colorado, our seed-to-sale online software, METRC only allowed you to modify 1 thing about the flower - The Name! You could call your flower anything you want. The purple characteristic is from anthocyanin, a type of polyphenol, characteristic of high altitude Indicas (Hindu Kush Landrace strain to be exact.) It’s part of the plants genetic disposition when there is a differential in temperature between day and night (technically called DIFF). This occurs in the final weeks of flowering, building bulk. Same deal with leaf color change in the fall, back in the states.

Props to you on great purple bud. I/we were talking about LANDRACE Thai Sativas: long finishers, hermaphroditism, seeders and pollinators, and bringing them indoors and affecting other strains. You said, “I beg to differ”, showed a dense purple bud. What does your hybrid strain have to do with true landrace Sativas? The misinformation is you implying you can grow landrace Sativas indoors and this is what it looks like. That’s my issue, not your bud, bro. just keeping it real and not pontificating or doing some self-promoting, aggrandizement. My knowledge is all science and fact based and completely free. (I’m a CEA scientist and this is my business) Would love to meet your master grower. p.s the background page on purple Thai sativas is completely fictional. Chocolate Thai is what came out of the landrace (which is really SE Asian and not unto Thailand alone. Most of the landrace varieties here are from Cambodia and Myanmar.) The landrace Thai weed here cures out chocolate brown, hence the name. Any Purple variety Thai phenos are all hybridized from Purple Urkle, Mendocino Purp and Grandaddy Purps. The word, “Thai” is just appropriated and used indiscriminately. There is no dispensary market for Thai landrace flower here.

“The only bigger lie than the name of the cultivar is the THC content.”

“it is thai genetics that was hunted. haven't done the backcheck yet as its fairly new.….Purple Thai” Exactly the kind of misinformation we are ALL trying to avoid. The initial thread was about “landrace Thai Sativa” seeds and we see purple bud against a backdrop of Indica plants that nobody has ever heard of or seen., and stated as ‘fairly new’ Really? The only people that need convincing on this is the grower and his/her customers. Landrace sativas rarely, if ever, express anthocyanin red/purple pigmentation. The grower begs to differ about the Thai Sativa landrace characteristics compared to the purple bud shown! The ‘back check’ leads directly to a seed bank.Spare me.

Obvious from the leaves, your plants are Indica hybrids

Thai Landrace Sativas, which constitute about 6 known varieties, are typical of most landrace strains: they take 15-16 weeks to flower/mature, are hugely prone to hermaphroditism, and will pollinate and/or seed before maturity. At best, the leaf to flower (calyx) ratio will be disappointing to most people accustomed to the hybrid genetics on the market today. You may have noticed, the side-of-the-road plants are all in flower right now. These strains are long finishers. You will experience only slightly better results growing them indoors. If you are growing them along side other genetics, be prepared for cross pollination and seedling.

GH pH up and pH down can readily be made with Potassium Hydroxide and Phosphoric acid respectively. Both can be easily purchased in Thailand. If there is any interest, I will post the mixing instructions/amounts.

Lots of misinformation here on the subject. Do not use vinegar for pH down and do not use baking soda for pH up. Acetic acid has very weak bonds and its effects are extremely temporary. Baking soda, while raising pH through bicarbonate anions (HCO3), will add excessive sodium (Na) to the amount of about 43% by weight. Sodium should be avoided when growing cannabis. Use citric acid and potassium hydroxide. Both are readily available. The stated pH of 5.8-6.2 is for hydro, soilless mediums NOT soil grows. True soil: 6.3-7.0 Many, many peat mixes are extremely acidic and a simple slurry test with a pH meter will tell you. Coco may be considered soilless but has a high CEC (Cation Exchange Capacity) - The ability to hold onto nutrients. Thai coco (there are exceptions) is high in Sodium (Na) and potassium,. Needs to be washed and buffered with calcium and magnesium (magnesium nitrate and calcium nitrate) before you plant in it or your plants will always look deficient. KNAAP sells a buffered and washed product that is excellent in 50 liter bags for about bht$610. They are in Surat Thani. With all that said, soil grows rarely need pH monitoring. A true soil grow is incredibly self regulating as long as you maintain adequate runoff. Usually, feed-water-water-feed or feed-water-feed-water, is a good regiment. I have known many, many successful soil growers that NEVER test or modify pH ever. Root exudates maintain pH in the root zone quite effectively.

The only bigger lie than the name of the cultivar is the THC content. No 2 plants, parts of the same plant, or successive grows will test the same % All labs (read the fine print) will have a huge swing in testing +/- 15% In the states, if you conform to periodic testing, you can use the lab test on the next 3-6 harvests (depending on state) In my dispensary in Denver, we called people THC shoppers who were looking for high % Fresh is best, regardless of THC. It’s the sum total of ALL the parts (organoleptic properties, terpenes, phenols, flavonoids). The question to ask when buying is, “what’s fresh?” With all that said, have people noticed most of the flower looks like <deleted>? All bud varieties looking exactly the same? -Brown! Heat, humidity and light (UV) degrades flower really fast here in Thailand.