低海拔种植天山雪莲一年生植株的生物学特性  

Biological Characteristics of Artificial Planting 1-Year-Old Saussurea involucrate in Low Altitude Region

作　　者：宁慧霞[1] 努尔波拉提[1] 刘敏[1] 王卉[1] 康喜亮[1] 王晓军[1] 

机构地区：[1]中国科学院新疆理化技术研究所,乌鲁木齐830011

出　　处：《植物研究》2012年第6期662-668,共7页Bulletin of Botanical Research

基　　金：国家自然科学基金资助项目天山雪莲SiHSPs类耐热基因的分离与功能研究(81102737);中科院"西部之光"人才培养计划"西部博士资助项目"食用天山雪莲快速生长培育与开发利用(XBBS200913);中科院"西部行动计划高新技术项目"(KGCXZ-YW-509)资助

摘　　要：以低海拔(567 m)人工种植的天山雪莲一年生植株为研究对象,从叶片数、叶长度、根长、单株鲜重等调查其生态表型,分析其生长规律,论述其生物学特性,以期为该种植物的保护及合理开发利用提供理论依据。结果表明:低海拔天山雪莲一年生植株生长特点为播种后至45 d之间生长缓慢,之后其生长速度加快,70 d后又缓慢生长;播种后覆盖草帘子,可提高人工种植的出苗率;其生长具有一定的耐旱性;一年生雪莲植株能刈割两次,刈割后大约20 d时,叶长度和叶片数基本能长至原来植株大小,但丛幅显著变小;刈割能促使其再生、避开高温天气及虫害大发生。Our objective was to investigate the important biological characteristics of annual artificial planting Saussurea involucrate in low altitude region （567 m）. We hope that these results can provide essential referential materials for the utilization and protection of this kind of resource. Experiment in the present research was carried out on the ecological adaptation of S. involucrate such as leaf number, leaf length, root length and single plant fresh weight of annual artificial plant in low altitude region, The characteristics of annual plant growth of S. invo- lucrate in low altitude were that it grew slowly after being sowed 45 d, then became fast, and reached a moderate stable rate after 70 d. Its emergence rate could be improved by sowing with covered straw mat. Its growth had a great drought-enduring characteristic. Annual plant of S. involucrate could be cut twice, and its leaf length and leaf number could grow to the size of an original plant after cutting approximately in 20 d, but the plexus ampli- tude was significantly smaller. Its regeneration could be promoted by cutting, which was also helpful to avoid the high temperature weather and nest outbreaks_

关 键 词：天山雪莲 低海拔 人工种植 一年生 生物学特性 

分 类 号：S314[农业科学—作物栽培与耕作技术]