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目的:探讨栽培密度对乌腺金丝桃生物量和形态变化的影响规律,从而制定人工繁殖的最佳栽培密度。方法:通过随机区组法,在65 cm的行距下,设置了15、25、35和45 cm的栽培株距,每组设3个重复,观察不同组间株高、叶对数、分枝数和生物量的差异。结果:乌腺金丝桃在株高、叶对数及分枝数量方面与栽培密度没有显著性关联;在生物量方面,茎枝和花果在不同栽培密度之间没有显著差异;叶的生物量在不同栽培密度之间存在显著差异,其中以株距25、35 cm较高。结论:乌腺金丝桃最佳栽培密度应为株行距(25~35)cm×65 cm。
Objective: To investigate the effects of planting density on the biomass and morphological changes of Hypericum perforatum, so as to establish the optimum planting density for artificial propagation. Methods: Plant spacing of 15, 25, 35 and 45 cm was set by random block method at a row spacing of 65 cm with three replicates per group. The plant height, leaf number, branch number And biomass differences. Results: There were no significant correlations between plant height, logarithm and number of branches in the genus Ungulateana, and there was no significant difference in density between the stems and the flower branches in terms of biomass. There were significant differences among different planting densities, of which the plant height was 25 and 35 cm. CONCLUSION: The optimum planting density of U. koraiensis should be the row spacing (25 ~ 35) cm × 65 cm.