草业学报2012，Vol.21Issue(2)：241-248,8.
4份菊苣种质材料苗期抗旱性评价
Drought resistance evaluation of four seedling chicory
摘要
Abstract
The effects of drought stresses on eleven drought-resistant characteristics of four seedling chicory were studied by reducing soil water in a pot experiment.The leaf water content (LWC),leaf relative water content (LRWC),height and biomass of the four seedling chicory decreased,while their leaf soluble sugar content (LSSC),leaf relative electrical conductivity (LREC),proline and root/shoot increased with improved drought stress resistance.Drought stress did not significantly affect height stress index or dry matter stress index of four seedling chicory.It is concluded that LWC,LRWC,height,root-shoot ratio,LREC and LSSC can be used as the main evaluation index,while aboveground biomass,underground biomass,plant height stress index,dry matter stress index and proline can only be used as reference indexes for drought resistance evaluation of chicory.The capacity of drought resistance by subordinate function analysis of the four chicories was gauged as: C2>C1>C4>C3.This accorded with their practical performance.关键词
菊苣/苗期/抗旱性Key words
chicory (Cichorium intybus) /seedling stage/drought resistance分类
农业科技引用本文复制引用
刘建宁,石永红,侯志宏,王运琦,李鹏,邢亚亮,吴欣明,张燕..4份菊苣种质材料苗期抗旱性评价[J].草业学报,2012,21(2):241-248,8.基金项目
国家科技支撑课题(2007BAD56B02,2008BADB3B01),现代农业产业技术体系建设专项(CARS-35),山西省攻关项目(20080311030-2)和山西省农科院育种项目资助. （2007BAD56B02,2008BADB3B01）
