Plant Nutrition — Pgr Cytokinin
- First endogenous cytokinin was isolated from maize kernels named as zeatin.
- Germinating seeds, roots, sap streams, developing fruits and tumor tissue are rich in cytokinins.
- Cytokinins imbibed seeds germinate better in dark than unimbibed lettuce seeds.
- Similarly cytokinin together with gibberllin effectively breaks the photodormancy of celery ( Apium graveolens ) seeds.
- Synthetic cytokinins are kinetin, benzyladenine and ethoxy ethladenine.
- Cell divisions, elongation and enlargement
- Induction of flowering, fruit development
- Apical dominance-overcoming
- Delay senescence
- Tissue culture morphogenesis
- Parthenocarpy
- Breaking dormancy
- Improves N2 metabolism
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| Cell division | Auxillary growth | Delaying of senescence |
