GrowCast Jordan River

Nik from Rooted Leaf is BACK to continue our individual nutrient explorations- this time focusing on CALCIUM. Nik explains how calcium is absorbed and utilized by the plant, and how cannabis calcium consumption changes throughout the cannabis grow cycle. He goes on to expound on different forms of applicable calcium, and compares the sources based on solubility, nitrogen content, and more. Nik goes on to explain a few mind blowing phenomena involving calcium; the first being the intracellular exchange of calcium - making it pretty agile for an immobile nutrient - and also the production of calcium waves that originate from a point of stress and ripple throughout the plants entire cellular being. Nik also talks about the upcoming INDUSTRY NIGHT and GROW CLASS (with Jordan River speaking) which you can find tickets to at www.rootedleaf.com (code growcast for 20% off products)

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Today's episode features the one and only JB from 808 Genetics broadcasting straight from Hawaii! JB joins us a combination of breeder feature and history lesson- he starts by telling some incredible stories of the OG Hawaiian cannabis growers who paved the way to make Hawaii the cannabis haven that it is. JB talks about being a second generation grower, and how closely held some of the cultivars were by the old heads. JB then discusses his breeding work, including his overall philosophy, why he thinks back-crossing cannabis is some of the most important work to be doing, the history of some of the most iconic strains like crippy - and also his all-time top strains from 2022. JB wrapst he show by sharing stories from strains lost to time, his favorite strains that he no longer has access to- but still remember fondly...

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First time guest and founder of Seedsherenow James Bean joins the program for an incredible episode! James shares the story of his cannabis journey and enlightens us on the evolution of the cannabis genetic marker. James reminisces on some of his favorite members of the breeding community from back in the day, and emphasizes just how rapidly the market has changed. This leads to a conversation about big breeder collaboration deals, from Bodhi and Berner to the Seedjunky drama- one thing is for sure, there are more collabs coming! James tells some of his favorite stories of meeting breeders in person, as well as some of the biggest struggles he's faced while building his brand- including whack seeds, banking scammers, and more...

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An instant classic episode today- good friend of the show Molokai Kevin debuts on the main podcast for the first time! Kevin is a multi decade cannabis grower who specializes in outdoor soil gardening- and is currently living on the Hawaiian desert island of Molokai. Kevin talks about how Hawaii has changed over the years, and shares some wild stories of guerilla growing and running from the law back before legalization swept over the state. He also discusses the differences between growing on Molokai and other islands, emphasizing the incredible power of the rich jungle soil on islands like Oahu. This leads to a conversation about microbes, and Kevin gives a history lesson his favorite microbial input known as BAM (beneficial anaerobic microbes) and how it impacted the soil growers of Hawaii. Kevin wraps the show by talking about some legendary Hawaiian strains like Molokai Frost and Hawaiian Duckfoot...


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We are starting a whole new episode series about plant nutrition! Nik from Rooted Leaf (use code growcast) is back on the show to explore minerals individually- starting with nitrogen! Nik explains how complex the many roles that nitrogen plays actually are, while emphasizing that 80% of your nitrogen goes towards a few primary processes. This leads to a conversation about the rubisco enzyme, and how nitrogen plays into photosynthesis and energy production. Nik also explains how nitrogen deficiency and toxicity work, and how too high levels of nitrogen can lead to nutrient burn. This leads to a conversation about how nitrogen moves throughout media and throughout nature- and how it acts when we water to runoff. Nik extrapolates on the difference in nitrogen needs between the vegetative stage and the flowering stage, and how the balance of nitrogen in the bloom cycle is extremely delicate... Stay tuned for more mineral deep dives with Nik coming to this feed soon!

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Follow along with our viroid resource at www.growcastpodcast.com/viroid

Contributor to the Human Genome Project and cannabis viral expert Kevin McKernan debuts on the show for a DEEP DIVE into viral cannabis pathogens! Kevin starts by breaking down the science of what a viroid is, how it differs from a virus, and what it's role in the natural world is. He discusses hop latent viroid in cannabis, and explains the mechanisms by which it replicates itself using the plant's energy, and stops the expression of desirable traits like potency, terpene expression, and more. This leads to a conversation about the hops industry, where instead they opted to breed cultivars that would carry the virus but resist it- as opposed to the cannabis approach of testing for viruses and culling any positives. Kevin wraps up the show by talking about tobacco mosaic virus, why it's so misdiagnosed, and just how many varieties there are of these types of plant virals...

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