表油菜素内酯对高粱幼苗生长和光合特性的影响  

Effects of EBR on Growth and Photosynthetic System on Sorghum Seedlings

作　　者：石新新[1,2,3] 李佐同[1,2] 杨克军[1,2] 赵长江[1,2,3] 杨荣斌 于高波[1] 徐晶宇[1,2] 贺琳[1,2] 赵莹[1] 许艳梅[1] 马丽峰[1] 范博文[1] 闫博巍 

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319 [2]国家杂粮工程技术研究中心/黑龙江八一农垦大学 [3]寒地作物种质改良与栽培重点实验室 [4]北大荒垦丰种业股份有限公司北安分公司

出　　处：《黑龙江八一农垦大学学报》2015年第5期56-60,共5页journal of heilongjiang bayi agricultural university

基　　金：国家自然科学基金项目(31101429);农业部公益性项目(201303007);黑龙江省教育厅科学技术研究项目(12511360);黑龙江八一农垦大学引进人才科研启动基金项目;黑龙江八一农垦大学研究生创新项目;黑龙江八一农垦大学大学生创新创业项目;国家杂粮工程中心组建项目(2011FU125X07);黑龙江八一农垦大学内培育课题计划项目(XIR2014-02)

摘　　要：试验对高粱种子进行4个浓度表油菜素内酯浸种处理24 h,土培至二叶一心期测定光合相关参数,并取样测定光合色素和可溶性蛋白含量。随着EBR浓度的升高,高粱株高、根长、鲜重和干重呈现先升后降的趋势,可溶性蛋白质含量也呈现"升-降";光合参数表现为"升-降"变化趋势、部分变化显著,叶绿素和类胡萝卜素等光合色素含量也先升高后降低。结果表明,表油菜素内酯在较低浓度下具有明显的促进高粱幼苗生长作用,可以通过提高光合色素含量和光合潜力,同时协调光合相关指标有效提高光合速率从而促进碳四作物高粱的生长。The different four concentrations of EBR treatments were conducted on sorghum seedlings for 24 h,and photosynthetic parameters, chlorophyll fluorescence value and content of photosynthetic pigment were measured at the two-leaf-one-heart stage. The results showed when the concentration of EBR increased,the plant height,root length,fresh weight,dry weight,and soluble protein content had first increased and then decreased trend. Net photosynthetic parameters and contents of chlorophyll and chlorophyll fluorescence also showed the ＂up-down＂ trend,and most of the changes were significantly. The results indicated that EBR significantly promoted the growth of sorghum seedlings at lower concentrations,and coordinated the related indicators to promote the growth of carbon four crops of sorghum by increasing the photosynthetic pigment content and photosynthetic potential.

关 键 词：高粱 EBR 光合特性 

分 类 号：S514[农业科学—作物学]