茉莉酸甲酯对东方百合生长发育的影响

Effects of methyl jasmonate on growth and development of Oriental Lily

为探讨茉莉酸甲酯(methyl jasmonate,MJ)对东方百合生长发育及内源激素含量的影响,本试验以东方百合"索蚌"为试材,用不同质量浓度的MJ进行浸球和营养生长期、现蕾期叶面喷施处理,调查了百合株高、花期及鳞茎等相关指标的变化,并测定了现蕾期叶片中内源激素含量。结果表明:浸球处理使东方百合始花期提前;0.1和1.0 mg/L MJ现蕾期喷施处理植株的株高显著高于对照,分别为87.92和87.67 cm;1.0 mg/L MJ现蕾期喷施处理使单株花期和群体花期分别延长2.09和3.25 d,鳞茎周径增大1.66 cm;花朵寿命和单株花朵数无显著变化;处理质量浓度以现蕾期喷施1.0 mg/L MJ为最佳。百合株高、单株花期和鳞茎周径与生长素(IAA)及生长素(IAA)/玉米素核苷(ZR)显著正相关。

This paper is concerned on the effect of methyl jasmonate（MJ） treatment method on Oriental Lily ＇Sorbonne＇.The measuring parameters included plant height,florescence,bulb perimeter and phytohormone content of leaves.The result showed that bulb soaking with MJ induced in early flowering.Plant height reached 87.92 and 87.67 cm by spraying 0.1 and 1.0 mg/L MJ during squaring period plant,which were significantly higher than control.Spraying 1.0 mg/L MJ during squaring period prolonged florescence per plant and inflorescence of population by 2.09 and 3.25 d,enlarged the bulb perimeter by 1.66 cm.However,MJ treatment had no significant effects on either flower life or the number of flower per plant.The suitable concentration of MJ was 1 mg per liter.There were significant positive relationships among plant height,florescence per plant,bulb perimeter and IAA and IAA/ZR.