Effects of soil moisture on seed germination and seedling growth of Malus sieversii seedlings
To explore the effects of different soil moisture on the seed germination and seedling growth of Malus sieversii,through an outdoor pot experiment,taking Malus sieversii as the research materials,the seed germination and the differences in biomass during the seedling growth of Malus sieversii were comparatively analyzed when the soil relative water content was 20％,35％,50％,65％,and 80％.The response of Malus sieversii seed germination and seedling growth to soil mois-ture changes was discussed.The results showed that with the increase of soil moisture,the seed ger-mination rate of Malus sieversii first increased and then decreased.When the soil relative water con-tent was 20％,the seed germination rate was the lowest,at 2.67％,and it could not grow normally after germination.When the relative water content was 50％,it could germinate normally,with a germination rate of 42.67％,but it could not maintain the normal survival of seedlings.When the relative water content was 65％,the seed germination rate and the survival rate of seedlings were the highest,at 69.33％and 41.30％;when the relative water content was 80％,the plant height,main root length,base stem,number of leaves per plant,fresh weight of roots,stems and leaves,and chlorophyll content of the seedlings were significantly higher than those of other treatments,and there was no significant difference in the leaf area size of each water treatment.The seed germination and seedling growth of Malus sieversii are relatively sensitive to water changes,and maintaining the soil moisture content of about 65％is conducive to seed germination and seedling survival.
Malus sieversiisoil water contentseedling growthbiomass
万方数据
维普
