Cytokinin hormonal mechanism and cellular stimulation
6-BAP acts directly on plant cell cycles to regulate meristematic growth and nutrient mobilization.
- Promotes cytokinesis: Accelerates plant cell division in apical and lateral meristems.
- Overcomes apical dominance: Releases dormant lateral buds to develop into productive fruiting shoots and dense bushy canopies.
- Delays foliar senescence: Retards chlorophyll breakdown and protein degradation, keeping leaves green and photosynthetically active.
- Nutrient sink mobilization: Directs sugars, amino acids, and minerals toward developing flower buds and fruit clusters.
Commercial applications in fruit orchards and horticulture
Targeted foliar applications of 6-BAP at ultra-low concentrations optimize crop canopy architecture and fruit quality.
- Apple production: Used as a post-bloom chemical fruitlet thinner and to improve fruit typiness, elongation, and size.
- Grape cultivation: Enhances berry set, rachis elongation, and uniform berry sizing in seedless table grape varieties.
- Floriculture and ornamental plants: Stimulates basal branching in roses, carnations, and chrysanthemums for higher stem counts.
- Vegetable crops: Delays yellowing of leafy greens (spinach, coriander) and enhances fruit set in greenhouse cucurbits.
Plant tissue culture and micropropagation techniques
In commercial biotechnology laboratories, 6-BAP is an essential cytokinin added to Murashige and Skoog (MS) media to stimulate rapid multiple shoot regeneration from explants (such as banana shoot tips and sugarcane meristems). Because 6-BAP is biologically potent at parts per million (ppm) levels, applicators must dissolve it in dilute alkali or alcohol before water dilution.
Official source
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National Horticulture Board (Govt of India) ↗Related on KisanPe
Common questions
What is 6-Benzylaminopurine (6-BAP) used for in plant agriculture?
6-BAP is a synthetic cytokinin plant growth regulator used to stimulate cell division, promote shoot branching, enhance fruit sizing, and delay leaf yellowing.
Why is 6-BAP widely used in plant tissue culture laboratories?
It stimulates rapid shoot bud differentiation and multiple shoot proliferation from explants on culture media.
How does 6-BAP benefit apple and grape growers?
In apples, it helps with fruitlet thinning and sizing; in grapes, it enhances rachis stretching and uniform berry development.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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