Fertiliser supplementation with a biostimulant complex of fish hydrolysate, Aloe vera extract, and kelp alters cannabis root architecture to enhance nutrient uptake

Insight into the Biostimulant Effect of an Aqueous Duckweed Extract on Tomato Plants

“…Our data also showed that LE modulated and improved root architecture. All these effects agree with the bibliography that documents that biostimulants can generally improve root tissues and their architecture and organization [45,46]. Also, in agreement with the effects recorded, the high content of phytohormones and glucosinolates found in LE [11,[14][15][16], given their stimulating activity on the root system, justifies what was observed in this study.…”

Higher Plant-Derived Biostimulants: Mechanisms of Action and Their Role in Mitigating Plant Abiotic Stress

“…The uptake and assimilation of nutrients from the soil play a decisive role in proper plant development, as nutrients are needed to produce essential metabolites and enzymes in addition to acting as cofactors. Various types of biostimulants are reported to enhance the uptake of phosphorus (P), sulfur (S), calcium (Ca), magnesium (Mg), potassium (K), iron (Fe), and Zn, increasing their concentration and intracellular bioavailability in spinach [ 105 , 106 ], perennial wall rocket [ 98 , 99 ], rocket [ 103 ], tomato [ 117 , 122 ], maize [ 83 ], olive tree [ 93 ], kinnow mandarin [ 66 ], cannabis [ 42 ], and rose-scented geranium [ 104 ]. In a study carried out in tomato plants treated with an alfalfa-based PH, an increase was observed in the transcription of transporters related to ion uptake, such as sulfate transporters SULTR 2;1 and SULTR 3;1 , Cu transporters, phosphate transporter PT2 , Fe-phytosiderophore transporter protein yellow stripe 1 ( YS1 ), K channels, and ABC transporters [ 123 ].…”

“…In addition, an increase in trichoblasts and atrichoblasts was observed, although their location pattern did not change, which indicates that the biostimulant promoted root growth differently from ethylene [ 126 ]. In cannabis plants, treatment with a biostimulant formulation composed of aloe vera, fish, and kelp extracts increased the number of root tips and branch points, as well as the total surface area of the root system [ 42 ].…”

“…Seed priming [37,38] Cabbage (Brassica oleracea) Camelina (Camelina sativa) Shorgum (Shorgum sp.) water extract Seed priming [41] Cannabis (Cannabis sativa) Aloe vera (Aloe vera) extract and aloe vera, fish, and kelp complex Nutrient solution [42] Cascading geranium (Pelargonium peltatum) Trainer ® Foliar spray [43] Common bean (Phaseolus vulgaris)…”

Effect of saline irrigation and plant-based biostimulant application on fiber hemp (Cannabis sativa L.) growth and phytocannabinoid composition

“…Kosmidis et al (2023), in an outdoor pot experiment, evaluated the combined effect of biocompost (vermicompost, alone or mixed with spent mushroom substrate and cattle manure compost) and biostimulant (seaweed extracts) on the development of the root system of hemp (Cannabis sativa L.), and they found that the significantly higher values of length density, surface area density, and nitrogen content of roots were observed in the two treatments with the addition of biostimulant. Moreover, in a more recent study, Wise et al (2024) assessed the effect of four biostimulant solutions (kelp; Aloe vera extract; fish hydrolysate; the complex composed of these three biostimulants) on root growth and nutrient utilization. They observed that biostimulant complexes enhanced root development and increased phosphorus and potassium uptake.…”