不同配比基质对草莓扦插苗生长的影响

Effects of substrates with different ratios on the growth of strawberry cuttage seedlings

为筛选适合培育草莓扦插苗的基质配方,本研究以草莓品种天使8号为试验材料,通过测定不同配比基质的理化指标及草莓扦插苗的生长指标,分析不同基质对草莓扦插苗生长的影响。结果表明,不同配比基质的总孔隙度、持水孔隙度、通气孔隙度存在差异,并且不同配比基质对草莓扦插苗生长的影响不同。其中椰糠∶草炭∶珍珠岩=4∶1∶1(重量比)为最佳基质配比,该配比基质的容重、总孔隙度、持水孔隙度较高。使用该基质培育的草莓扦插苗的叶柄粗、株高、茎粗、叶柄长、叶长和叶宽较大,地下部鲜重和地下部干重较大,同时草莓扦插苗气孔导度、胞间CO 2浓度、蒸腾速率较高。本研究结果为草莓穴盘扦插育苗的基质配置提供了参考。

In order to select suitable substrate formula for cultivating strawberry cuttage seedlings,this study used strawberry variety Momoiro hoppe No.8 as experimental material.Through measuring physical and chemical indices of substrates with different ratios and growth indices of strawberry cuttage seedlings,the effects of different substrates on the growth of strawberry cuttage seedlings were analyzed.The results showed that there were differences in total porosity,water-holding porosity and aeration porosity of different substrates,and different substrates had different effects on the growth of strawberry cuttage seedlings.The optimum substrate ratio was coconut bran∶peat∶perlite=4∶1∶1(weight ratio).The bulk density,total porosity and water-holding porosity of the optimum substrate were high.The strawberry cuttage seedlings cultivated with the optimum substrate had relatively larger petiole diameter,plant height,stem diameter,petiole length,leaf length and leaf width.The underground part of strawberry cuttage seedlings cultivated with the optimum substrate had higher fresh weight and dry weight.The stomatal conductance,intercellular CO 2 concentration and transpiration rate of strawberry cuttage seedlings cultivated with the optimum substrate were high.The results of the study provided a reference for the substrate configuration of strawberry cuttage seedlings.