Analysis of the vigorous vitality of wild rice variety Changmaogu and its response to propiconazole
To explore the effects of propiconazole on rice seedlings,a pot experiment was conducted using wild rice variety Changmaogu and conventional rice variety 9311.This study investigated the impact of foliar spraying with 20 mg·L-1 propiconazole on the growth phenotypes and physiological metabolism of these two rice varieties.The results showed that propiconazole reduced the plant height growth rate of both rice varieties,while maintained a relatively stable leaf area growth rate in Changmaogu.Propiconazole also increased root length and average root diameter,significantly increased the biomass of the seedlings,and elevated the contents of chlorophyll a,chlorophyll b,and total chlorophyll.Moreover,propiconazole significantly enhanced the net photosynthetic rate,transpiration rate,stomatal conductance,actual photochemical efficiency of PSⅡ,and electron transfer rate in both varieties.It also increased the activities of superoxide dismutase(SOD),peroxidase(POD),ascorbate peroxidase(APX),and catalase(CAT)in the leaves.In summary,foliar spraying with 20 mg·L-1 propiconazole can effectively promote the growth of rice seedlings and improve their physiological characteristics.
NETL
NSTL
万方数据
维普
