Effect of Sod-culture on Respiratory Metabolism of Apple Roots under Drought Stress

摘要：

　　In order to explore the effect of sod-culture on respiratory metabolism of apple roots under drought stress,1-year-old potted ‘Hanfu apple trees were used as materials,and soil water content,proportion of fine roots,root respiratory rates,percentages of each root biochemical respiratory pathway and electron transport respiratory pathway were compared under 5 different sod-culture treatments,including Medicago sativa,Lolium perenne,Trifolium repens,Poa annua and spontaneous vegetation (clean cultivation as control) under drought stress.Results showed that EMP-TCA and CP still maintained the leading root respiratory pathways of Medicago sativa treatment under drought stress.Among biochemical respiratory pathways,TCA accounted for 45.88% of the total respiratory rate,having absolute predominance; while CP accounted for 50.85%,which was significantly higher than AP,guaranteeing the supply of higher energy and alleviating the damage of drought stress on the roots to some extent.

关键词： ‘Hanfu apple sod-culture drought stress root respiratory rates respiratory pathway

作者: LYU Deguo DOU Yanxin DU Guodong

作者单位: College of Horticulture;Shenyang Agricultural University;Research Laboratory for Breeding and Physio College of Horticulture;Shenyang Agricultural University

会议类型: 国际会议

会议名称: The Third Conference on Horticulture Science and Technology (2012第三届园艺科学与技术学术会议(CHST2012))

会议地点: 北京

会议语种:英文

页码: 276-279

在线出版日期: 2012-11-24（万方平台首次上网日期，不代表论文的发表时间）