摘要
为研究原花青素对酸铜胁迫下紫花苜蓿种子萌发及幼苗生长的影响,以6个紫花苜蓿品种为试验材料与不同浓度原花青素(0、12.5、25.0、37.5、50.0毫克/千粒种子)进行拌种,研究其酸铜胁迫下的发芽试验。结果表明:不同原花青素浓度均能促进紫花苜蓿种子发芽势、发芽率、发芽指数和活力指数等萌发指标和根长、根系表面积等根系性状指标。随着原花青素浓度的增大,酸铜胁迫下紫花苜蓿种子萌发指标和根系指标都增大,但是不呈连续增长趋势,且不同紫花苜蓿品种间表现有差异。
In order to study the effect of proanthocyanidins on the seed germination and seedling growth of alfalfa under acid-copper stress,used the different concentrations(0、12.5、25.0、37.5、50.0 mg/Thousand seeds)of proanthocyanidins to carry out germination test.The results showed that the use of proanthocyanidins can enhance the germination index and root index of alfalfa.With the increase of the concentration of proanthocyanidins,the germination index and root index of alfalfa increased under acid-copper stress,but it did not show a continuous growth trend,and the performance of different alfalfa varieties was different.
作者
乌国俊
龚梨霞
李丹竹
张志飞
Wu Guojun;Gong Lixia;Li Danzhu;Zhang Zhifei(College of Agronomy,Hunan Agricultural University,Changsha 410128,China)
出处
《草学》
2020年第2期40-45,53,共7页
Journal of Grassland and Forage Science
基金
农业农村部财政专项物种品种资源保护项目(131621301352025)资助。
关键词
原花青素
紫花苜蓿
酸铜胁迫
种子萌发
proanthocyanidins
alfalfa
acid-copper stress
seed germination
