摘要
本实验采取实地观测法,连续两年观测了宜春和永顺的落叶木莲(Manglietia decidua)形态特征,并首次在同等条件下繁育出了一年生苗,目的是探析两个种源的叶、花、果和幼苗等形态特征的差异。结果表明:(1)前者叶形趋于狭椭圆形,后者叶形趋于椭圆形;(2)前者与后者花被长分别为6.38 cm和3.46 cm,差异极显著(P<0.01)。除花被数量外,前者苞片长、雄蕊长和雌蕊群长均明显高于后者(P<0.01);(3)前者与后者聚合果鲜重分别为54.87 g和22.71 g,种子千粒重分别为79.19 g和61.80 g,差异均极显著(P<0.01)。(4)前者一年生苗的地径和苗高生长量均明显高于后者(P<0.01)。因此,宜春和永顺的落叶木莲在叶形、花形态、果形态以及一年生苗生长量等方面均有明显差异。
In this experiment,the field observation method was used to observe the morphological characteristics of Manglietia decidua in Yichun and Yongshun for two years.Breeding a year's seedlings under the same conditions for the first time.The aim was to analysis differences in the morphological characteristics of the leaves,flowers,fruits and seedlings of the two provenances.The result show that:(1)The former have narrow elliptical shape,and the latter have elliptical shape;(2)Perianth length of the former and the latter are respectively 6.38 cm and 3.46 cm,and their difference are extremely significant(P<0.01).Except for number of perianth,bracts length,stamen length and pistils length of the former are significantly higher than the latter(P<0.01).(3)Aggregate fruit's fresh weight of the former and the latter are respectively 54.87 g and 22.71 g.and seed 1000-grain weight are respectively 79.19 g and 61.80 g.Their difference are extremely significant(P<0.01);(4)Ground diameter and seedling height of the former seedlings are significantly higher than the latter(P<0.01)under the same seedling condition.Therefore,M.decidua of Yichun and Yongshun are significant differences in leaf shape,flower morphology,fruit morphology and annual seedling growth.
作者
肖智勇
黄紧生
张志坚
李晓春
吴群
程珊梅
杨清培
Xiao Zhiyong;Huang Jinsheng;Zhang Zhijian;Li Xiaochun;Wu Qun;Cheng Shanmei;Yang Qingpei(Forestry Research Institute of Yichun,Yichun Jiangxi 336000,China;Jiangxi Agriculture University,Nanchang Jiangxi 330045,China)
出处
《南方林业科学》
2020年第2期39-43,61,共6页
South China Forestry Science
基金
国家自然科学基金(项目编号:31460077/31860167)
中央财政林业科技推广示范项目(项目编号:JXTG[2017]-09号)。
关键词
落叶木莲
种源
形态特征
差异
Manglietia decidua
provenance
morphological characteristics
difference
作者简介
肖智勇,男,工程师,硕士,主要从事森林培育工作。E-mail:258151694@qq.com;通信作者:杨清培,男,教授,博士,主要从事生态学研究。E-mail:Qingpeiyang@126.com。
