黑穗醋栗扦插基质对根系生长的影响  

Effect of Rites nigrum Cutting Substrate on Root Growth

作　　者：姚颖 敖慧洁 温爱亭 刘建明 吕跃东 YAO Ying;AO Huijie;WEN Aiting;LIU Jianming;Lü Yuedong(Heilongjiang Forestry Science Research Institute,Harbin 150081,China;Xing’an League Rescue Station,Ulan Hot 137400,China)

机构地区：[1]黑龙江省林业科学研究所,黑龙江哈尔滨150081 [2]兴安盟救助站,内蒙古乌兰浩特137400

出　　处：《北华大学学报（自然科学版）》2024年第4期524-529,共6页Journal of Beihua University（Natural Science）

基　　金：黑龙江省省属科研院所科研业务费项目(CZKYF2021B011)。

摘　　要：以黑穗醋栗扦插苗为研究对象,选用腐熟后的稻壳、阔叶树树皮、针叶枯枝落叶按一定体积比混合配制成育苗基质开展扦插育苗试验,分析不同育苗基质生根情况,筛选出黑穗醋栗最适扦插育苗基质配方,提高苗木生根率,为工厂化育苗高效扩繁提供技术支持,解决农林废弃物处理难及泥炭基质不足的问题。结果表明:最适黑穗醋栗硬枝与嫩枝扦插育苗的基质为稻壳+针叶枯枝落叶(落叶松)+阔叶树树皮(杨树)(2:1:1)与稻壳+阔叶树树皮(杨树)+草炭(2:1:1),硬枝与嫩枝扦插苗木生根率达到91%以上,生根综合质量指数达到48以上。因此认为,混合有机基质质地较疏松且通透性较好,有利于苗木根系伸展,能够满足植物生长需求,证实以生物质材料代替草炭进行黑穗醋栗苗木培育是可行的,研究结果为有机基质工厂化苗木提供了科学依据。The black currant cutting seedlings are taken as the research object,decomposed rice husks,broad-leaved tree bark,and coniferous dead branches and leaves are mixed in a certain volume ratio to prepare seedling substrate for seedling cultivation experiments.The rooting situation of different seedling substrates is analyzed,and the most suitable seedling substrate formula for black currant cutting is selected to improve the rooting rate of seedlings and provide technical support for efficient expansion of factory seedling cultivation,solve difficulty in handling agricultural and forestry waste and insufficient peat substrate.The results showed that the optimal substrate for cutting black currant seedlings with hard and tender branches was as follows:rice husk+coniferous dead branches and fallen leaves(larch)+broad-leaved tree bark(poplar)(211)and rice husk+broad-leaved tree bark(poplar)+peat(211).The rooting rate of hard and tender branches cutting seedlings reached over 91%,and the comprehensive rooting quality reached over 48.Therefore,the mixed organic matrix has a loose texture and good permeability,which is conducive to the extension of seedling roots and can meet the needs of plant growth.This confirms the feasibility of biomass materials instead of peat for cultivating black currant seedlings,which can provide scientific basis for the industrial production of organic matrix seedlings.

关 键 词：黑穗醋栗(Rites nigrum L) 硬枝扦插 嫩枝扦插 育苗基质 苗木生长 

分 类 号：S723.1[农业科学—林木遗传育种]