【摘要】 [目的]分析水麻扦插的插穗类型与扦插时间效应。[方法]通过对水麻夏季扦插与冬季扦插的插穗类型、嫩枝扦插时间的析因试验,分析水麻扦插的插穗类型与扦插时间效应。[结果]插穗类型和嫩枝扦插时间对水麻扦插生根率影响均达极显著水平(P<0.01)。其中,夏季扦插2年生插穗生根率明显高于1年生带顶芽插穗及1年生不带顶芽插穗的生根率;1年生带顶芽与1年生不带顶芽插穗的扦插生根率差异不显著(P>0.05);冬季扦插1年生带顶芽插穗及1年生不带顶芽插穗的生根率显著高于2年生插穗生根率(P<0.05);6月下旬到7月中旬的扦插生根率显著高于其他时间的扦插生根率(P<0.05),这时期穗条处于半木质化状态。[结论]水麻嫩枝扦插和硬枝扦插、夏季和冬季扦插均可以在生产中采用。更多还原

【Abstract】 [Objective]To analyze cutting types and time effects on cutting propagation of Debregeasia orientalis.[Method]The article analyzes the types of cuttings and time effects on cutting propagation of Debregeasia orientalis through the factorial experiment by control the variables as following: summer cuttage & winter cuttage,cutting with terminal bud & cutting without terminal bud,2 years old cutting & 1 year old cutting.[Result] The results indicated that there is significant difference between the variable of cutting with or without terminal bud and the variable of 1 or 2 years old cutting concerning the rooting rate,namely in summer cuttage,the rooting rate of 2 years old cutting is significantly higher than 1 year old cutting with and without terminal bud;there is no significant difference between the rooting rate of 1 year old cutting with and without terminal bud in summer cuttage;in winter cuttage,the rooting rate of 1 year old cutting with and without terminal bud is significant higher than 2 years old cutting;the rooting rate of the cuttage arranged among middle of June to middle of July,when the cutting is semi lignified,is significant higher than the cuttage arranged on other moment.[Conclusion]Debregeasia orientalis softwood cuttings and hardwood cuttings,summer cottage and winter cottage all could be used in production.更多还原