CAJ | 학술논문

为探明甜高粱幼苗对龟裂碱土胁迫的响应，通过盆栽试验，以5个不同基因型的甜高粱为材料，研究了龟裂碱土对甜高粱幼苗生长和生理特性的影响。结果表明，龟裂碱土抑制了甜高粱幼苗的生长，显著降低了甜高粱幼苗株高、根长和植株干重。龟裂碱土胁迫条件下，不同基因型甜高粱叶绿素含量和光合速率均大幅度降低，而叶片质膜相对透性、MDA含量以及SOD、POD、CAT等保护性酶活性则显著升高。不同基因型甜高粱对龟裂碱土胁迫的耐受能力存在较大差异，品种ZNH05耐盐碱能力较差，ZNH07和ZNH18则表现出较强的耐盐碱性。
위탐명첨고량유묘대구렬감토협박적향응，통과분재시험，이5개불동기인형적첨고량위재료，연구료구렬감토대첨고량유묘생장화생리특성적영향。결과표명，구렬감토억제료첨고량유묘적생장，현저강저료첨고량유묘주고、근장화식주간중。구렬감토협박조건하，불동기인형첨고량협록소함량화광합속솔균대폭도강저，이협편질막상대투성、MDA함량이급SOD、POD、CAT등보호성매활성칙현저승고。불동기인형첨고량대구렬감토협박적내수능력존재교대차이，품충ZNH05내염감능력교차，ZNH07화ZNH18칙표현출교강적내염감성。
To explore the response of sweet sorghum seedlings to stress when grown on Takyric Solonetz soils, growth and physiological characteristics of five different sweet sorghum genotypes were studied in a pot trial. Takyric Solonetz inhibited seedling growth of sweet sorghum,and significantly reduced plant height,root length and plant dry weight of sweet sorghum seedlings.The chlorophyll content and photosynthetic rate of different sweet sorghum genotypes were greatly reduced,while the plasma membrane relative permeability, MDA levels and SOD,POD,and CAT activities were significantly increased under stress conditions induced by Takyric Solonetz.There were significant differences in salt or alkalinity tolerance among 5 genotypes of sweet sorghum.Variety ZNH05 showed least tolerance to Takyric Solonetz stress,while ZNH07 and ZNH18 showed stronger resistance to Takyric Solonetz stress.