不同生态条件下苹果叶面附生物种群演替的初步研究

生态学杂志 ›› 1993, Vol. ›› Issue (4): 7-13.

不同生态条件下苹果叶面附生物种群演替的初步研究

陈功友¹, 郑铁民¹, 任国兰¹, 时向阳¹, 郭艳春², 宋爱仙³

1. 河南农业大学, 郑州450002;
2. 河南省植保总站, 郑州450002;
2. 郑州市园艺场, 郑州450002

收稿日期:1992-01-26 修回日期:1992-03-25 出版日期:1993-08-10

Succession of Epiphytic Microflora Populations on Apple Phylloplane under Diffcrent Ecological Conditions

Chen Gongyou¹, Zheng Tiemin¹, Ren Guolan¹, Shi Xiangyang¹, Guo Yanchun², Song Aixian³

1. Henan, Agricultural Uniuersity, Zhengzhou 450002;
2. Henan General Station of plant protection, Zhengzhou 450002;
3. Horlicultural Farm of Zhengzhou Municipality, Zhengzhou 450002

Received:1992-01-26 Revised:1992-03-25 Online:1993-08-10

摘要/Abstract

关键词: 科尔沁沙地, 土壤微生物量碳和氮, 潜在净氮矿化速率, 潜在净硝化速率, 土壤酶活性, 土壤有效磷

Abstract: Seasonal variations of epiphytic microflora on apple phylloplane were studied by washing and centrifugating during its growing season in 1991 in natural and disease-control orchards.The results indicate that－the population and number of species of both epiphytes and pathogens vary significantly during the sea-son. Under natural condition,the total amount of epiphytic bacteria peaks earlier than that of fungi.Both of the peaks emerge later than that of pathogens,The populations of epiphytes and pathogens are signifi-cantly affected by precipitation and fungicides. 358 isolates of epiphytes are indentified into 36 fungus-species and at least 4 bacterium genera,Dominant species of epiphytes in early season Rreatly differ from those in late season .but some epiphytes present consistently during the season. There are no obvious differences among populations of epiphytes in different ecological regions.Biological control of pathogens in orchards is discussed.

Key words: Keerqin Sandy Land, soil microbial biomass C and N, potential net N mineralization rate, potential net nitrification rate, soil enzyme activity, Olsen-P.

陈功友, 郑铁民, 任国兰, 时向阳, 郭艳春, 宋爱仙. 不同生态条件下苹果叶面附生物种群演替的初步研究[J]. 生态学杂志, 1993, (4): 7-13.

Chen Gongyou, Zheng Tiemin, Ren Guolan, Shi Xiangyang, Guo Yanchun, Song Aixian. Succession of Epiphytic Microflora Populations on Apple Phylloplane under Diffcrent Ecological Conditions[J]. cje, 1993, (4): 7-13.

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