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不同光照强度对青海高原地区园林小菊扦插繁殖的效果

张国莉 唐有林 王海滨 田洁

山西农业大学学报(自然科学版)2025,Vol.45Issue(3):21-32,12.
山西农业大学学报(自然科学版)2025,Vol.45Issue(3):21-32,12.DOI:10.13842/j.cnki.issn1671-8151.202403045

不同光照强度对青海高原地区园林小菊扦插繁殖的效果

Effect of different light intensity on the cutting propagation of Chrysanthemum morifolium in Qinghai plateau area

张国莉 1唐有林 1王海滨 2田洁3

作者信息

  • 1. 青海大学 农林科学院/青海省蔬菜遗传与生理重点实验室,青海 西宁 810016
  • 2. 南京农业大学 园艺学院,江苏 南京 210095
  • 3. 青海大学 农林科学院/青海省蔬菜遗传与生理重点实验室,青海 西宁 810016||青海大学 农林科学院/青海省高原种质资源研究与利用实验室,青海 西宁 810016
  • 折叠

摘要

Abstract

[Objective]This study aimed to clarify the suitable light conditions for the cutting seedlings of garden chrysanthemum in the Qinghai Plateau and determine the optimal light intensity parameters,providing a theoretical basis for the standardized cultivation of garden chrysanthemum in high-altitude areas.[Methods]The experiment regulated light intensity using different layers of shading nets,with eight garden chrysanthemum varieties('Jinling Meiguijin','Jinling Lianyan','Jinling Xiaoye','Jin-ling Yipinhong','Jinling Lihua','Jinling Fenyulan','Jinling Yangguang',and'Jinling Honghe')as test materials.The effects of different light intensities(CK:0%shading rates,T1:56%shading rates,and T2:79.22%shading rates)on the growth and physiological characteristics of the cuttings were analyzed.[Results]The results showed that under different light-intensity treat-ments,significant differences were observed in the growth,photosynthetic,and physiological indicators of the garden chrysan-themum cuttings.The T1 treatment yielded the best growth metrics,including plant height,stem diameter,leaf number,total root length,root number,and rooting rate.For instance,under T1,the leaf number of'Jinling Meiguijin'increased by 5.70%and 159.38%compared to CK and T2,respectively.As light intensity decreased,gas exchange parameters,chlorophyll con-tent,and root activity of the cultivars first increased and then decreased.Specifically,the total chlorophyll content of'Jinling Yangguang'under T1 treatment was 35.10%and 6.77%higher than that of CK and T2,respectively.Mantel-test showed a strong correlation between net photosynthetic rate and rooting rate but no correlation with survival rate.[Conclusion]The compre-hensive evaluation results showed that the ranking of cuttings performance under different light intensity treatments were T1>CK>T2.Additionally,among the eight cultivars,'Jinling Lianyan'exhibited the best growth performance,demonstrating high utilization value.

关键词

菊花/扦插繁殖/光强/生长发育/综合评价

Key words

Chrysanthemum morifolium/Cutting propagation/Light intensity/Growth and development/Comprehensive eval-uation

分类

农业科技

引用本文复制引用

张国莉,唐有林,王海滨,田洁..不同光照强度对青海高原地区园林小菊扦插繁殖的效果[J].山西农业大学学报(自然科学版),2025,45(3):21-32,12.

基金项目

青海省科学技术厅科技援青合作专项(2024-QY-210) (2024-QY-210)

山西农业大学学报(自然科学版)

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