EFFECTS OF PH AND TEMPERATURE ON GROWTH RATE OF TRICHODERMA KONINGII AND COMPARISON WITH FUSARIUM SPP. CAUSAL AGENT OF WHEAT HEAD-BLIGHT AND ITS ANTAGONISTIC ACTIVITY AGAINST THE PATHOGENS

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RAHNAMA K.; MOHAMMADZADEH A.R.; RAZAVI S.I.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2005 | Volume:12 | Issue:1 Page(s): 127-136

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Title

EFFECTS OF PH AND TEMPERATURE ON GROWTH RATE OF TRICHODERMA KONINGII AND COMPARISON WITH FUSARIUM SPP. CAUSAL AGENT OF WHEAT HEAD-BLIGHT AND ITS ANTAGONISTIC ACTIVITY AGAINST THE PATHOGENS

Author(s)

RAHNAMA K. | MOHAMMADZADEH A.R. | RAZAVI S.I. | Issue Writer Certificate

Keywords

ANTAGONISTQ3

FUSARIUM SPP.Q2

PHQ2

TEMPERATUREQ4

TRICHODERMA KONINGIIQ4

Abstract

In this study the effects of PH and TEMPERATURE on ANTAGONISTic activity of the fungus TRICHODERMA KONINGII (KR7) from Gorgan area (Agh-ghaleh) were compared with two species of Fusarium causal agents of wheat head-blight disease. This T.koningii had significantly the most growth rate at 25°C and PH 4.5. The growth rate was more in all tested TEMPERATUREs (20, 25 and 30°C) with PH 4.5, than two others PH 5.5 and 6.5. Reduction of PH resulted in an increase in the sporulation of T.koningii, but, Fusarium graminearum and F. culmorum were associated with growth reduction more at 30°C. Optimum growth for two species of Fusarium was 25°C. After 48h F.culmorum produced high level of macroconidia on PDA whereas, none with F.graminearum. Growth rate of T.koningii was significantly more than two Fusarium species in dual cultures. PHenomena of mycoparasitism and colonisation of T.koningii on Fusarium hyphae was associated with coiling around hyphae in various experimental conditions, observed by light microscope. T.koningii fungus produced green conidia and chlamydospore after 48h, in dual and single culture.

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APA: Copy

RAHNAMA, K., MOHAMMADZADEH, A.R., & RAZAVI, S.I.. (2005). EFFECTS OF PH AND TEMPERATURE ON GROWTH RATE OF TRICHODERMA KONINGII AND COMPARISON WITH FUSARIUM SPP. CAUSAL AGENT OF WHEAT HEAD-BLIGHT AND ITS ANTAGONISTIC ACTIVITY AGAINST THE PATHOGENS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 12(1), 127-136. SID. https://sid.ir/paper/9089/en

Vancouver: Copy

RAHNAMA K., MOHAMMADZADEH A.R., RAZAVI S.I.. EFFECTS OF PH AND TEMPERATURE ON GROWTH RATE OF TRICHODERMA KONINGII AND COMPARISON WITH FUSARIUM SPP. CAUSAL AGENT OF WHEAT HEAD-BLIGHT AND ITS ANTAGONISTIC ACTIVITY AGAINST THE PATHOGENS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2005;12(1):127-136. Available from: https://sid.ir/paper/9089/en

IEEE: Copy

K. RAHNAMA, A.R. MOHAMMADZADEH, and S.I. RAZAVI, “EFFECTS OF PH AND TEMPERATURE ON GROWTH RATE OF TRICHODERMA KONINGII AND COMPARISON WITH FUSARIUM SPP. CAUSAL AGENT OF WHEAT HEAD-BLIGHT AND ITS ANTAGONISTIC ACTIVITY AGAINST THE PATHOGENS,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 12, no. 1, pp. 127–136, 2005, [Online]. Available: https://sid.ir/paper/9089/en

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