匍匐翦股颖根际分泌物对高羊茅生长和相关生理指标的影响  

Effect of root exduates of Agrostis stolonifera on growth and related physiological indexes of Festuca arundinace

作　　者：梁中银[1,2] 张皓[1] 李健[1] 支俊凯 边秀举[2] 徐吉臣[1] 

机构地区：[1]北京林业大学生物科学与技术学院,林木育种国家工程实验室,北京100083 [2]河北农业大学动物科技学院,河北保定071001

出　　处：《植物生理学报》2016年第7期1073-1080,共8页Plant Physiology Journal

基　　金：中央高校基本科研业务费专项资金(2015ZCQ-SW-01)~~

摘　　要：为探讨匍匐翦股颖与高羊茅品种混播的潜力,分析了匍匐翦股颖品种‘Penn A4’根际分泌物对6个高羊茅品种发芽率、生物量和生理指标的影响。结果显示:匍匐翦股颖根际分泌物对高羊茅品种的影响,总体表现为2 mg·mL^(-1)浓度促进、4 mg·mL^(-1)浓度抑制的趋势;高羊茅品种对匍匐翦股颖根际分泌物的反应呈现明显的品种间差异,‘爱瑞三号’最为敏感,‘正义’较为钝感。研究结果表明,通过选择合适的品种和比例关系进行匍匐翦股颖与高羊茅的混播,对于改善草坪草的景观效果,延长观赏期,提高草坪草的抗性等具有重要的意义。In order to understand the potential of mixtures sowing between Agrostis stolonifera and Festuca arundinace, the research here studied the effects of root exudates of A. stolonifera cultivar ‘Penn A4＇ on F. arundinace cultivars with the seed germination rate, biomass and physiological indexes. The results showed that 2 mg·mL^（-1） of root exudates of ‘Penn A4＇ had improved effect on growth of F. arundinace cultivars while 4 mg·mL^（-1） of root exudates of ‘Penn A4＇ had inhibitory action. The response of F. arundinace cultivars to root exudates of ‘Penn A4＇ displayed cultivars especially with ‘Arid 3＇ as sensitive and ‘Justice＇ as the tolerant cultivar. Consequently, mixture sowing of A. stolonifera with F. arundinace species was really suggested in proper ratio. It is significant and efficient in improving plant landscape, extending the turfgrass green time and enhancing turfgrass resistance to biotic stress.

关 键 词：匍匐翦股颖 根际分泌物 高羊茅 化感作用 混播 

分 类 号：S688.4[农业科学—观赏园艺]