STUDY OF DIFFERENT INDICES FOR EVALUATING WHEAT LINES FOR RESISTANCE TO FUSARIUM HEAD BLIGHT

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AHARIZAD S.; MOGHADAM MOHAMMAD; GHANADHA M.R.; ALI ZADEH A.; BABAI AHARI A.A.

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Journal: Iranian Journal of Crop Sciences Year:2003 | Volume:5 | Issue:4 Page(s): 273-284

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Title

STUDY OF DIFFERENT INDICES FOR EVALUATING WHEAT LINES FOR RESISTANCE TO FUSARIUM HEAD BLIGHT

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Keywords

RESISTANCE MECHANISMSQ4

EVALUATING INDICESQ3

FUSARIUM HEAD BLIGHTQ3

WHEATQ3

Abstract

Seven homozygous WHEAT lines representing different levels of resistance to FUSARIUM HEAD BLIGHT were evaluated under infection and normal conditions in a field experiment at Gholestan Province during 2001. Under infected condition, disease incidence (DI), disease severity (DS), disease index (DIX), area, under the disease progress curve (AUDPC), grain yield and its components, while under non-infected condition only grain yield and its components were recorded. Genotype as well as genotype × environment interaction effects was significant for all the studied indices. Mean comparisons revealed heterogenous trend in responses to infection measured by the different indices. Disease index (DIX) and its AUDPC could not differentiate susceptible from moderately susceptible and resistant from moderately resistant lines. Grain yield and number of kemels per spike had similar shortcomings as DI and its AUDPC. In general, considering all parameters, 1000 grain weight, DS and its AUDPC were regarded as better indices to differentiate resistant from susceptible lines and to recognize different types of resistance.

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APA: Copy

AHARIZAD, S., MOGHADAM, MOHAMMAD, GHANADHA, M.R., ALI ZADEH, A., & BABAI AHARI, A.A.. (2003). STUDY OF DIFFERENT INDICES FOR EVALUATING WHEAT LINES FOR RESISTANCE TO FUSARIUM HEAD BLIGHT. IRANIAN JOURNAL OF CROP SCIENCES, 5(4), 273-284. SID. https://sid.ir/paper/57184/en

Vancouver: Copy

AHARIZAD S., MOGHADAM MOHAMMAD, GHANADHA M.R., ALI ZADEH A., BABAI AHARI A.A.. STUDY OF DIFFERENT INDICES FOR EVALUATING WHEAT LINES FOR RESISTANCE TO FUSARIUM HEAD BLIGHT. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2003;5(4):273-284. Available from: https://sid.ir/paper/57184/en

IEEE: Copy

S. AHARIZAD, MOHAMMAD MOGHADAM, M.R. GHANADHA, A. ALI ZADEH, and A.A. BABAI AHARI, “STUDY OF DIFFERENT INDICES FOR EVALUATING WHEAT LINES FOR RESISTANCE TO FUSARIUM HEAD BLIGHT,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 5, no. 4, pp. 273–284, 2003, [Online]. Available: https://sid.ir/paper/57184/en

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