Further investigations on correlative bud inhibition

摘要: By paper chromatographic analysis with isopropanol-water-ammonia two fractions which inhibit growth and germination promote straight but have no effect on were isolated from ether extracts of green pea shoots. The four the following properties:Rf 0.35; acid; promotes Avena growth; has Lepidium;Rf 0.6; inhibits germination;Rf 0.75; behaves like fraction Rf 0.35 is less active;Rf 0.85; neutral or alkaline; acts similarly to 0.6.The activity inhibiting 0.6 0.85 in Lepidium not changed when a solvent (isopropanol-water) used instead alkaline isopropanol-water-ammonia.There evidence for an germination-inhibiting substance Rf-value 0.55, so-called correlation inhibitor reported by LIBBERT LIEBENOW (1964).The behavior was investigated especially different bud tests. 1. Lateral buds decapitated seedlings are prevented outgrowth application lanolin pastes containing inhibitors. more active this test than 0.85. inhibition partly cancelled simultaneous addition gibberellic acid. 0.75 inactive test. 2. In second nodes single used. These organs placed horizontally upward into aqueous solutions fractions. Bud inhibited (to lesser extent) inactive. action these regulators described tests their possible role correlative vivo discussed.