湖南农业科学Issue(4)：16-19,4.DOI:10.16498/j.cnki.hnnykx.2025.004.004
地菍种子发芽率及植株耐阴性研究
Seed Germination Rate and Shade Tolerance of Melastoma dodecandrum
摘要
Abstract
This study aims to investigate the seed germination rate and shade tolerance of Melastoma dodecandrum.The seeds were soaked in water(control),gibberellin(GA3)at 50,100,200 mg/L,or 6-benzylaminopurine(6-BA)at 1,5,10,and 20 mg/L.The effects of different plant hormones and their concentrations on seed germination rate were analyzed.In addition,M.dodecandrum plants were treated with shade(0%,50%,70%,and 90%),and the plant height increase,leaf area,chlorophyll content,and net photosynthetic rate were measured.The results showed that 100 mg/L GA3 and 20 mg/L 6-BA treatments significantly improved the seed germination rate,which reached 83.6%and 83.2%,respectively.The plant height increase,leaf area,and maximum net photosynthetic rate were the highest in the 70%shade treatment,and the chlorophyll content reached the highest value in the 90%shade treatment.The results indicated that soaking seads in GA3 and 6-BA at appropriate concentrations could significantly improve the seed germination rate of M.dodecandrum.M.dodecandrum had typical characteristics of shade tolerance,with 70%shading as the optimal growth condition.关键词
地菍/发芽率/耐阴性/激素/叶绿素/净光合速率Key words
Melastoma dodecandrum/germination rate/shade tolerance/hormone/chlorophyll/net photosynthetic rate分类
农业科技引用本文复制引用
汪弘毅,丁华娇,任璐娜,陈晓玲..地菍种子发芽率及植株耐阴性研究[J].湖南农业科学,2025,(4):16-19,4.基金项目
杭州市西湖风景名胜区管理委员会科研项目(2023-011) （2023-011）
