INFLUENCE OF THEORGANIC COMPOUNDS IN CONTINUOUS CROPPINGSOYBEAN ON PATHOGENIC OF ROOT ROT(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2004年01期

Page:

36-40

Research Field:

Publishing date:

Info

Title:

INFLUENCE OF THEORGANIC COMPOUNDS IN CONTINUOUS CROPPINGSOYBEAN ON PATHOGENIC OF ROOT ROT

Author(s):

Han Limei 　Qu Huyan 　Wang Xuming

The Quartermaster Universi ty of PLA , Changchun 130062

Keywords:

Soybean ; Continuous cropping ; Organic compounds ; Pathogenic fungi of root rot ; Allellopathic compounds

PACS:

S 565.1

DOI:

10.11861/j.issn.1000-9841.2004.01.0036

Abstract:

Influence of the org anic compounds in continuous cropping soybean on pathogenic fungi of root rotw ere studied by field experiment and biology simulating ex periment and chemical analysis method .The watersoluble carbohydrates f rom rotational and continuous cropping soil showed a rule that at low concentratio ns theypromo ted the fungus g row th but at hig h concent rations inhibition occurred .At low concentrations , the watersoluble carbohydrates from continuous cropping soil showed much stronger promotion on the g row th ofFusarium semitectum and Gliocladium roseum than those f rom rotational cropping soil.The water solubleamino acids f rom ro tational and cont inuous cropping soil improved the g row th of Fusarium oxysporium ,Fusarium semitectum , Gliocladium roseum signif icantly .The w ater soluble o rganic acids f rom continuous andro tation cropping soil at low concent rations mostly promo ted the g row th of Gliocladium roseum , Fusariumoxysporium and Fusarium Semitectum signif icantly , w hile at high co ncent ration org anic acids f rom continuouscropping soil inhibited the g row th of Fusarium oxysporium .The results above show ed that w ater soluble carbohydrates, amino acids and o rganic acids from continuous cropping soybean had sig nificant ly close co rrelation w ithroot rot .

References:

1 　王金陵, 杨庆凯, 吴宗璞.中国东北大豆[ M] .哈尔滨:黑龙江科学技术出版社, 1999 , 386-388.

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