黄化对兰州百合植株生长发育的影响

Effects of etiolation on the growth and development of Lilium davidii var.unicolor

为探究黄化对兰州百合植株生长发育的影响,本研究以二年生兰州百合为试验材料,按照黄化程度分为4级,测定不同黄化级别兰州百合植株地上部和地下部的生长发育相关指标。结果表明:随着黄化程度的提高,兰州百合植株的株高、茎粗和冠幅均呈下降趋势,茎生根的根数、根幅、根系活力和基盘根的总根长、根幅、根系活力均逐渐降低。黄化植株的鳞茎淀粉含量显著低于健康植株。黄化对兰州百合的生长发育造成了显著影响,且随着黄化级别越高,植株受到的影响越严重。研究结果可为防治兰州百合黄化,提高其产量和品质提供理论依据。

Biennial Lilium davidii var.unicolor is taken as the materials to explore the effects of etiolation on the growth and development of its plants.The plants are divided into four degrees based on the degree of etiolation to measure its growth and development parameters at different etiolation levels.The results show that the plant height,stem diameter and crown width of Lilium davidii var.unicolor show a downward trend with the intensification of etiolation.The root number,root width,root activity of stem as well as the total root length,root width and root activity of basal root decrease gradually.The starch content in the bulbs of etiolated plants is significantly lower than that of healthy plants.Etiolation has a significant impact on the growth and development of Lilium davidii var.unicolor.The plants are affected more seriously with the increase of etiolation level.The results can provide theoretical basis for preventing the etiolation of Lilium davidii var.unicolor and improving its yield and quality.