摘要
食果鸟有利于植物种子传播.为探究日本珊瑚树果实成熟度及食果鸟取食方式对种子萌发的影响,本研究以红色和紫黑色两种成熟度日本珊瑚树果实中的种子为研究对象,观察食果鸟的种类及其取食方式,并通过人工去除果肉和划破种壳的方法模拟食果鸟对日本珊瑚树果实的吞/啄食,随后检测这些处理对种子萌发的影响.结果表明:日本珊瑚树种子具有非深度简单上胚轴形态生理休眠;果实进入成熟期后,随着果实颜色由红色变成紫黑色,其种子休眠程度也加深;食果鸟对紫黑色果实的取食既促进了种子传播,也促进了种子休眠的解除和萌发;而其对红色果实的取食则仅促进了种子传播,对种子休眠和萌发无显著影响.
Frugivorous birds are beneficial to the spread of plant seeds.To explore the effect of Viburnum odoratissimum var.awabuki fruit maturity and frugivorous birds feeding on seed germination,we selected seeds in the red and purple black V.odoratissimum var.awabuki fruits,observing the species of frugivorous birds and their feeding patterns,and simulating the swallowing/pecking effects of frugivorous birds by manually removing the pulp and scarifying seed-case and then detecting the effect of these treatment on seed germination.The results showed that V.odoratissimum var.awabuki seeds have non-deep,simple,epicotyl morphophysiological dormancy;after the fruits entered mature period,as the fruit color changed from red to purple-black,seed dormancy also grew deeper;the feeding of purple-black fruits by frugivorous birds promoted both seed dispersal and release of seed dormancy and germination,while the feeding of red fruits by frugivorous birds only promoted seed dispersal and has no significant effect on seed dormancy and germination.
作者
沈世峰
任星榕
韩慧
杨心语
邓仕明
SHEN Shifeng;REN Xingrong;HAN Hui;YANG Xinyu;DENG Shiming(Hubei Key Laboratory of Biologic Resources Protection and Utilization(Hubei Minzu University),Enshi 445000,China;Research Center for Germplasm Engineering of Characteristic Plant Resources in Enshi Prefecture(Hubei Minzu University),Enshi 445000,China;School of Forestry and Horticulture,Hubei Minzu University,Enshi 445000,China)
出处
《湖北民族大学学报（自然科学版）》
CAS
2021年第3期256-260,共5页
Journal of Hubei Minzu University:Natural Science Edition
基金
国家自然科学基金项目(31860073,81303169)
生物资源保护与利用湖北省重点实验室2020年度开放基金项目(PT012008)
湖北民族大学大学生创新创业训练计划项目(X202110517255).
关键词
珊瑚树
食果鸟
吞食
啄食
果肉
种子扩散
Viburnum odoratissimum
frugivorous birds
swallowing
pecking
pulp
seed dispersal
