Plant growth regulators (PGRs) play a crucial role in sustainable agriculture, enhancing crop yields due to population growth and limited land availability. PGRs are natural or synthetic compounds that regulate developmental and metabolic processes in higher plants. They play a significant role in somatic embryogenesis, where the induction of callus in plant tissues and organs is significantly affected by plant hormone regulators. Karrikins, a chemically defined family of PGRs, are found in smoke from burning plant material and are potent in breaking down plant tissue.
PGRs and biostimulants are known to regulate plant growth and development, boost plant metabolism, and enhance nutrient uptake. The DELLA-SLY1/GID2 PPI regulates plant growth, survival of environmental adversity, and resource assimilation. PGR1 is a highly effective environmentally friendly plant growth regulator with effects on different crops.
New generation PGRs include brassinosteroids, salicylic acid, jasmonic acid, triacontanol, CPPU, hexanal, putrescine, and me-latonin. Strigolactones, plant hormones that regulate plant growth and development, particularly in response to nutrient deficiency, are also exuded. The presence of alkamides in HA may contribute to increased plant cell signaling and accelerated metabolism.
The identification of the first plant melatonin receptor opened the door to this regulatory molecule being considered a new plant hormone. Hyaluronic acid (HA9) is a new additive for plant tissue culture acting as a growth regulator for hybrid Cymbidium micropropagation. These new-generation PGRs can boost an orchard’s productivity and income while minimizing pre and post-harvest losses.
📹 Why EVERYONE should use Plant Growth Regulator!!
Plant Growth Regulator or PGR has a ton of benefits for your lawn. Not only does Plant Growth Regulator slow down the growth of …
📹 PGR Plant Growth Regulator for Lawns TNEX How to Apply
I will show you how i apply PGR Plant Grown Regulator to my lawn. I like to mix PGR Plant Growth Regulator with 002 Microgreen …
I started using PGR in 2016 after having to mow my tifway 419 daily to avoid cutting the color off of it. The results were amazing. I have pictures of a stem of neighbors Bermuda and a stem of my PGR treated grass. The neighbors stem had 7 to 8 leaves and mine had way too many to count, 60 to 70 leaves. Additionally, mine was a much darker green in color. PGR is a game changer!
I know this is an older article but just wanted to say I love your website dude! Always very informative, creative content with a lot of production value. Definitely agree, the grass is so much darker using T-Nex (the PGR I’m most experienced with also) due to the extra time the plant maintains chlorophyll. You’re articles have always been super helpful. Thanks for what you do!
There are products nearly identical to T-Nex that come in smaller quantities. Pramaxis MEC is one of them, it can be found around $40 for 8oz. Application rate is .75oz per 1000sqft for most grasses so you get around 6000sqft per bottle. One bottle last me a year so it’s perfect. Bioadvanced Slow Mow has the same active ingredient in a granular form. It’s usually available locally as well for around $20. So there are options out there.
Really enjoying the articles and the website. Keep em coming! I feel like I’m getting in on the ground level of a website that’s about to take off. Excited to see where this journey takes you. As for the PGR, everyone seems to recommend it but I never felt my lawn was ready for it…until this weekend. Temps hit 90+ and all the spring time prep (bermuda in GA) finally started to pay off and I think it’s finally ready. After perusal your vid I will be applying my first PGR app in next 2 weeks.
Thanks. Great article. I have Zenith Zoysia and I don’t mind mowing every few days, but I’m sure it will start to annoy my wife since I’ll be mowing more often to stay closer to a lower mow height, so this T-Nex will be a great item for my shelf-o-chemicals. Do you have to apply this with a fine spray on Zoysia or turf with stolons and rhizomes, or could you use something like a Gilmore/Chapin 362G professional hose end sprayer? Typically what I do with other liquids is add water, add the amount of item I’m spraying, set the meter to 1 and that’s enough to go across my lawn fully, then again at a 90 degree angle. Would that work, or would I have to lug around my FlowZone sprayer? Great sprayer for sure, but it’s kind of a pain putting on and off enough to spray a 15,000 sq. ft. lawn. That takes me about 18 gallons of mix using my FlowZone sprayer.
How much time after putting fertilizer down can you put PGR down. I put fertilizer down when the ground temperature is 55, which could be as early as the end of March. BTW, I’m one of those nuts that loves to mow. I would use the PGR in the back because of our dogs. I like the fact that it helps thicken the grass. Excellent articles that you put out. Keep up the great work.
New to the PGR game, I have 2 questions….1) does the PGR have an impact on the weeds still growing in my lawn? and 2) I have no idea what type of Bermudagrass I have….I’m guessing it’s common but not sure at all, and seeing the rate is immensely different between common and the others, how would yall handle that?!?!? I played it safe in July by picking the .25 oz/1k rate, didn’t seem to do much but it was it’s first ever application. In August, I decided to double that rate and it seems to have slowed the growth a little……NOW, I just learned about GDD….and according to that calender, I’ll be due to apply again this week, if I’m understanding that concept properly….your take on that?!?!?
Hey Jesse! Big fan of your website! I’m about to apply my first ever application of T Nex using your recommendation of 50% of the recommended amount on the first application, 75% on the second and then step up to 100% on the third. My plan is to apply once a month, but since I’m using less should I apply the second application 2 weeks after the first and the full application 3 weeks after the second and then go monthly once I’m using 100% or just stick with the monthly application no matter what? Appreciate you man!
I’m in central Minnesota and I believe you mentioned you lived in The Land of 10,000 lakes as well in a previous article. I hope you enjoyed the heavy rain we just got as much as I did! My lawn is exploding after I dethatched/aerated and did a spring overseed with Tenacity, Scott’s starter and an application of Milo shortly after when I noticed germination starting. I’m in the south metro and am just starting on this 3/4 acre tall grass project lawn after buying this house last fall. Any suggestions on what my next application should be? My nitrogen isn’t too bad but my Phosphorus is running hot after doing a soil test yesterday. I got a bag of Lesco 24-0-10 that I planned on throwing down on the smaller front lawn once things down in June but I need to convert to all spraying to be more cost effective for this size of yard(about 25,000 sq ft total). I have a 4 gallon electric sprayer that I’m not afraid to use and a JD rider so frequent cutting isn’t a concern to me.
Thanks man you gave me hope to use fertilizer again. However can you give me a head up. I have a healthy st Augustine grass, what fertilizer will be best for it. I lost hope in milorganite I don’t want the same bad experience again and it stink like cow poop😂. My mom thought their were dead rats in the yard because of the smell. Which other one is great? What do you think about Ironite? I’m going to do it the way you do it. I see my grass respond better when I dump tiny nitrogen and Iron in liquid version instead of dumping the grains version or granular fertilizer way.
Appreciate all of your articles. I am curious what rate you have been applying for your pgr treatments. I live in Illinois w KBG lawn and have found the Tnex half rate (.3 oz per gallon of water) is about the most my yard can take (every 2 to 3 weeks). I also found that areas which are dryer tended to burn out slightly from this (like under trees). What has been your experience? Maybe I need to be more aggressive with watering? Other tips?
Always cracks me up how many American’s pronounce “Roots”. The first time I heard an American pronounce it that way, I thought they had a speech impediment. But I’ve now heard so many American’s out of the mid-west articulate it with this accent that I’m beginning to think that’s how you’ve all been taught to say it.
George dropping knowledge! These tips are pro level and I’m beginning to see you got lots more! Keep them coming! Question for you about the 105EX, since your Teejet nozzle recommendations article was EXACTLY what I was searching for and how I found your website… I have been specifically avoiding my 105EX for N-EXT products because they stain so bad. The Ortho Dial-N-Spray has been my choice for now, until I figure out if N-EXT products will stain permanently. Have you had issues with staining/cleaning your sprayer after spraying these thick dark liquids? Just need to be sure, as that sprayer cost more than my mower, and I want to keep it nice! Thanks George, great work as usual.
Hey George, great article. When did you apply your 2nd application? Is it safe to apply when it’s hot outside? My grass are well fed and watered and now towards the end of July is still going strong that I have to mow it 2x a week still. Getting tired of doing that in the summer.. So I wanted to try out this PGR.. Let me know please
I noticed you are weighing the t-nex… for liquid products the application rates are by volume not weight. 1 fluid oz of liquid is not the same amount of liquid as 1 oz of the liquid by weight. To be 100% precise you should be measuring with a syringe and not a scale. When I apply my Tnex I ask Alexa to convert the oz to ml and then draw the right amount of ml using a plastic 10 ml syringe (no needle)… assuming you were not previously aware of this distinction, this might make for a good article? Others might be the same situation.. Try measuring a small amount very precisely with a syringe and then compare it to the same amount measured by the scale. See if there is a visual difference and whether it tends to lead to over to under application or if it’s close enough. I’m genuinely curious the results.. I know liquids weight more or less depending on temperature as well. I’m also not sure how precise those scales are because I have the same one and I’m always questioning if I can trust it or not when I need to measure something small like the hundredth of a gram for MSM spot application etc