3 ms·

Novel 'retipping' method yields more high quality cannabis plants in less space

9 points by rolph 4y ago

rolph 4y ago
i found this curious, as the technique is at least 40 years old with respect to north american Canna cultivation.
h2odragon 4y ago
Defined in the linked paper: > retip cuttings (cuttings taken from new shoots on recently micropropagated plants) Had an IRC buddy who was doing mass meristem propagation of banana plants in school who tried some cannabis beside it with similar techniques. Don't think he published anything formal but this sounds similar to what he told me: the "growth spurt" boost of a newly rooted cutting carries over after you split the plant. call it a 'rooting phase' beside the better known 'vegetative' and 'flowering'.
- rolph 4y ago
  this is a common outcome, primarily a result of interplay between horomones, as the relative mass of tissue types is manipulated during cutting. [+] plant cells listen for "horomonal" signals,and use the combinations, and concetrations, to determine what state of development to initiate. https://en.wikipedia.org/wiki/Plant_hormone https://en.wikipedia.org/wiki/Plant_hormone
AtlasBarfed 4y ago
Kind of related to this, how much hydroponics / vertical farming / indoor farming techniques came out of illegal marijuana farms having to use basements and similar tactics to evade capture?
- rolph 4y ago
  hydroponic technique is quite old, many cultures use low tech methods. illicit farming drove a common experience that lead toward a finer understanding of crop manipulation, mainly to do with tight spaces, and recycling chemical components of atmosphere, and root matrix solutions, to minimize visible outputs. new topics of plant physiology were disseminated among eager young college students. the most influential boost came from the availability of spectrally correct [P.A.R. Watts] lighting, and H.I.Discharge equipment of the 70s. now we have electronic ballasting, and LED lighting.
  - AtlasBarfed 4y ago
    In your opinion does all this knowhow possibly translate to novel forms of indoor / vertical / space / alternative agriculture that is competitive with the current land-intensive, soil-destroying, pesticide-requiring, water-intensive, heavy carbon/petroleum fertilization? Maybe we should ban raspberry or pistachios and see what happens in underground production.
    - rolph 4y ago
      particular crops are suitable for hydroponic methods such as strawberries and herbs, some do very poorly such as tenderfruit. there are issues with root disturbances, and root volume. disease can spread very quickly. its water conservative, and land onservative, but can produce salt "tailings" apparently we are a lazy species, and need regular prompting for innovation.

9 points by rolph 4y ago

i found this curious, as the technique is at least 40 years old with respect to north american Canna cultivation.

Defined in the linked paper: > retip cuttings (cuttings taken from new shoots on recently micropropagated plants) Had an IRC buddy who was doing mass meristem propagation of banana plants in school who tried some cannabis beside it with similar techniques. Don't think he published anything formal but this sounds similar to what he told me: the "growth spurt" boost of a newly rooted cutting carries over after you split the plant. call it a 'rooting phase' beside the better known 'vegetative' and 'flowering'.

rolph 4y ago
this is a common outcome, primarily a result of interplay between horomones, as the relative mass of tissue types is manipulated during cutting. [+] plant cells listen for "horomonal" signals,and use the combinations, and concetrations, to determine what state of development to initiate. https://en.wikipedia.org/wiki/Plant_hormone https://en.wikipedia.org/wiki/Plant_hormone

AtlasBarfed 4y ago

Kind of related to this, how much hydroponics / vertical farming / indoor farming techniques came out of illegal marijuana farms having to use basements and similar tactics to evade capture?

rolph 4y ago
hydroponic technique is quite old, many cultures use low tech methods. illicit farming drove a common experience that lead toward a finer understanding of crop manipulation, mainly to do with tight spaces, and recycling chemical components of atmosphere, and root matrix solutions, to minimize visible outputs. new topics of plant physiology were disseminated among eager young college students. the most influential boost came from the availability of spectrally correct [P.A.R. Watts] lighting, and H.I.Discharge equipment of the 70s. now we have electronic ballasting, and LED lighting.
- AtlasBarfed 4y ago
  In your opinion does all this knowhow possibly translate to novel forms of indoor / vertical / space / alternative agriculture that is competitive with the current land-intensive, soil-destroying, pesticide-requiring, water-intensive, heavy carbon/petroleum fertilization? Maybe we should ban raspberry or pistachios and see what happens in underground production.
  - rolph 4y ago
    particular crops are suitable for hydroponic methods such as strawberries and herbs, some do very poorly such as tenderfruit. there are issues with root disturbances, and root volume. disease can spread very quickly. its water conservative, and land onservative, but can produce salt "tailings" apparently we are a lazy species, and need regular prompting for innovation.