期刊论文

Effect of Aeration and Regulating Deficit Irrigation on Root Growth of Asparagus officinalis L

中文

江西农业大学学报

1000-2286

2019

41

3

476-483

10.13836/j.jjau.2019056

国家自然科学基金项目（31272248）~~；

本校为第一机构

为探究增氧-调亏灌溉对芦笋根系生长的影响,以芦笋为对象,采用盆栽试验,在70%~80%轻度水分胁迫下进行不同增氧处理,对其不同生长阶段的根系生长进行观测与分析。结果表明,对芦笋不同生育阶段进行增氧-调亏灌溉,能促进其生长中后期根系发育,并提高其根系活力。与对照相比,幼苗期处理能提高其49.2%的根冠比,幼年期处理能增加27.3%的叶绿素含量和27.3%的根系活力,成株期处理能提高其32.4%的根系活力,在采笋期进行的水分胁迫且增氧能增加芦笋15.16%的株高和15.48%的茎粗;采笋期处理可促进芦笋根系的横向生长,扩大56.8%的总根表面积、19.9%的根平均直径、39.0%的总根体积和39.5%的根尖数。因此,增氧-...

To explore the effects of aeration-regulating deficit irrigation on root growth of Asparagus.The root growth indexes of Asparagus used as the experimental material in pots in different growth stages were observed and analyzed under aeration and mild water stress. The results show that aeration and regulating irrigation at different growth stages can promote Asparagus'root development and improve its root activity in the middle and late stages.The root-shoot ratio of asparagus during the seedling period increased by 49.2% compared with that of the control group(CK);the chlorophyll and root acti...