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鳞芽分化期乙烯利处理,对苍山蒜植株延伸生长有显著抑制作用,对内层型二次生长(SGi)有显著促进作用,对外层型二次生长(SGo)及蒜头产量无显著影响,但使蒜薹产量降低,浓度越大,效应越强。注射法与喷施法效果无显著差异,但注射法适应浓度更低。乙烯利处理使叶片气孔密度、光合强度及植株内源乙烯释放强度增大,呼吸强度有降低趋势,对过氧化物酶(POD)活性变化也有影响。
The ethephon treatment during the differentiation of the buds and the buds significantly inhibited the elongation of Cangshan garlic plants and significantly promoted the growth of SGi and had no significant effect on the SGo and garlic yield. But to reduce the production of garlic sprouts, the greater the concentration, the stronger the effect. There was no significant difference between the injection and spray methods, but the injection method to adapt to a lower concentration. Ethephon increased leaf stomatal density, photosynthetic intensity and endogenous ethylene release intensity, decreased respiration intensity, and also had an impact on changes of peroxidase (POD) activity.