Urease,invertase,dehydrogenase and polyphenoloxidase activities in paddy soil influenced by allelopathic rice variety
作者单位：Institute of Applied EcologyChinese Academy of Sciences College of AgronomyJilin Agricultural University College of Resources and Environmental SciencesChina Agricultural University
会议名称：《中国第四届植物化感作用学术研讨会》
会议日期：2009年
关 键 词：Oryza sativa L. allelopathy enzyme activity paddy soil root exudates 5,7,4’-trihydroxy-3’,5’-dimethoxyflavone
摘 要：Allelopathic rice variety can release allelochemicals from roots to soil in which interfere with neighboring plant and microbial species,but little is currently known about their effect on enzyme activities of paddy *** study showed that enzyme activities and concentrations of allelochemicals in paddy field varied with rice varieties,growth stages and moisture *** rice variety PI312777 paddy fields had higher