干旱区生态环境知识资源中心(Arid): 散枝猪毛菜的果实多型性及个体大小依赖的繁殖输出

Arid

	散枝猪毛菜的果实多型性及个体大小依赖的繁殖输出
其他题名	Study on Fruit Polymorphism and Size dependent Reproductive Output of Salsola bracchita
	魏岩; 王宏飞; 安沙舟
ISSN	1001-4675
出版年	2008
卷号	25 期号:3 页码:357-362
中文摘要	对散枝猪毛菜在自然种群中的个体大小、结实和萌发特性进行了观察.结果表明:①自然种群中,散枝猪毛菜具有大小不同的个体,其在植物体干重、株高、分枝级数、节数上具有显著差异,其个体大小表现出极大的可塑性;②散枝猪毛菜产生4种不同类型的果实(种子),并具有不同的萌发行为和散布特性;③依据个体大小的变化,4种类型的果实在植株上的比例发生了显著变化;随着植物个体的增大,A型果实所占比例逐渐增多,由2.253%增加到24.116%,B型果实所占比例逐渐增多,由6.026%增加到41.307%,C型果实所占比例逐渐减少,由81.561%减少到17.709%,D型果实所占比例逐渐增多,由8.077%增加到17.087%.总之,散枝猪毛菜个体大小的表型可塑性和果实多型性是对荒漠异质环境的一种适应.
英文摘要	Salsola brachiata Pall.,a dominant annual,is mainly distributed in deserts in the Junggar Basin,China,produces 4 types of utricles with different shapes,sizes,colors and sizes of wings on the fruits.Fruits of type A have lignified perianths with long wings and green utricles,and they can be easily dispersed for a long distance from their mother plants by wind.Fruits of type B have lignified perianths with short wings and green utricles,and they can also be easily dispersed for a long distance from their mother plants by wind.Fruits of type C have lignified perianths with short wings or without wings and green utricles,and they attach tightly on their mother plants.Fruits of type D have tepals and yellow utricles without wings,and they also attach tightly on their mother plants.Seeds of type A,type B and type C can germinate rapidly although the seeds of type C can germinate more quickly.Germination of the seeds of type D is slow with germination percentage less than 10%.In this paper,the Salsola brachiata plants and fruits with different sizes are lucubrated.The results show that the dry weight,plant height,branch series and nodes of Salsola brachiata plants are significantly different,and the shape,size,color and external structure of 4 types of fruits are also different.The total fruits of Salsola brachiata plants increase with the increase of plant size.With the increase of plant size,the proportions of the fruits of type A,type B and type D increase from 2.253% to 24.116%,from 6.026% to 41.307% and from 8.077% to 17.087%,respectively,but the proportion of the fruits of type C decreases from 81.561% to 17.709%.In short,the phenotypic plasticity of plant size and fruit polymorphism of Salsola brachiata are a kind of adaptability to the heterogeneous desert habitats.
中文关键词	散枝猪毛菜(Salsola brachiata) ; 个体大小 ; 果实多型性 ; 结实特性 ; 表型可塑性
英文关键词	Salsola brachiata plant size fruit polymorphism fruits-bearing characteristic phenotypic plasticity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3267057
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222327
作者单位	新疆农业大学,草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	魏岩,王宏飞,安沙舟. 散枝猪毛菜的果实多型性及个体大小依赖的繁殖输出[J]. 新疆农业大学,2008,25(3):357-362.
APA	魏岩,王宏飞,&安沙舟.(2008).散枝猪毛菜的果实多型性及个体大小依赖的繁殖输出.,25(3),357-362.
MLA	魏岩,et al."散枝猪毛菜的果实多型性及个体大小依赖的繁殖输出".25.3(2008):357-362.