摘要
通过室内种子萌芽试验,研究0(CK)、50、150、250、350 mmol/L不同盐分胁迫下不同猪屎豆品系的发芽率、胚芽(根)长等的变化。结果表明,少部分品系在低盐浓度下有促进作用,大部分品系的发芽率随盐浓度的增加而下降。通过对相对盐害率进行分级,耐盐指数1级品系有7份,3级品系有9份,5级品系有7份,7级品系有2份,9级品系1份。
Through the laboratory tests on the seed germination, the changes of germination rate and germ （root） length of different Crotalaria varieties trader different salt stress were researched. The results indicated that only few varieties were positively effected under the low salt concentration, while most varieties had a decline in germination rate with the increase of salt concentration. Classified on the basis of relative salt injury rate, 7 of these varieties were fallen in first-level salt tolerance index, 9 in third-level, 7 in fifth-level, 2 in seventh-level and 1 in ninth-level.
出处
《热带农业科学》
2012年第11期13-17,21,共6页
Chinese Journal of Tropical Agriculture
基金
国家科技支撑计划项目(No.2011BAD17B01-01-5)
农业部物种资源保护"热带牧草种质资源保存"项目
中央级公益性科研院所基本科研业务费"热带牧草新品种选育及产业化示范"项目(No.PZS083)
农业部热带作物种质资源保护项目(No.12RZZY-09)
热带地区柱花草新品种选育技术研究
关键词
盐胁迫
猪屎豆
萌芽
salt stress
crotalaria
germination
