热带作物学报2017，Vol.38Issue(6)：1052-1057,6.DOI:10.3969/j.issn.1000-2561.2017.06.011
海水浇灌对不同品种火龙果扦插苗生长和若干生理指标的影响
Effects of Seawater Irrigation on Growth and Several Physiological Characteristics of Different Cultivars of Hylocereus undatus Seedlings
摘要
Abstract
A pot experiment was conducted to study the effects of seawater irrigation on the growth and physiological characteristics of different cultivars of Hylocereus undatus (Dilong,Honglong,Zimilong and Bailong).Four treatments with 0％,10％,20％ and 30％ of seawater concentration were employed.The results showed that:(1) The fresh shoot weight tendencies of the 4 cultivars of H.undatus declined when seawater concentration increased,but the height addation of Dilong significantly increased when irrigated 10％ seawater;(2) The K+/Na+ ratios in shoot and root of H.undatus decreased with increasing seawater concentrations.Dilong displayed that K+/Na+ ratios in shoot and root decreased less than other cultivars when irrigated with 30％ seawater;(3) The contents of soluble sugar and proline increased first and then decreased as concentrations of the seawater increased,so as the activities of CAT and SOD.Dilong displayed that soluble sugar and proline contents,and CAT activities in shoot increased most when seawater concentration was 20％.Therefore,H.undatus withstood salt stress when suffered low concentration of seawater stress,and Dilong displayed better.关键词
海水浇灌/火龙果扦插苗/生长/生理特征Key words
Seawater irrigation/Hylocereus undatus seedlings/growth/physiological characteristics分类
农业科技引用本文复制引用
雷菲,解钰,张文,肖彤斌,符传良,张冬明,吴宇佳,谢良商..海水浇灌对不同品种火龙果扦插苗生长和若干生理指标的影响[J].热带作物学报,2017,38(6):1052-1057,6.基金项目
海南省农业科学院农业科技创新专项项目(No.CXZX201506) （No.CXZX201506）
海南省科学事业费项目(No.KYYS-2006-01). （No.KYYS-2006-01）
