CRITICAL PERIOD OF WEED CONTROL IN CUMIN (CUMINUM CYMINUM)

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HOSSEINI AZADEH; KOUCHAKI ALI REZA; NASIRI MAHALATI MAHDI

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Journal: Iranian Journal of Field Crops Research Year:2006 | Volume:4 | Issue:1 Page(s): 23-34

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Title

CRITICAL PERIOD OF WEED CONTROL IN CUMIN (CUMINUM CYMINUM)

Author(s)

HOSSEINI AZADEH | KOUCHAKI ALI REZA | NASIRI MAHALATI MAHDI | Issue Writer Certificate

Keywords

CUMINQ2

CRITICAL PERIODQ3

WEEDQ2

ECONOMIC YIELDQ2

Abstract

In order to evaluate the CRITICAL PERIOD of WEED control in CUMIN, an experiment with Complete Randomized Block Design and three replications was conducted in experimental field of Faculty of Agriculture, Ferdowsi University of Mashhad, During 2004-2005 growing season. Treatments included different combinations of WEED free and WEED infested periods (20, 30, 40 and 80 days after germination) plus WEEDy check and WEED free check. CRITICAL PERIOD WEED control was evaluated with Gompertz and Logistic functions. Traits measured were yield and yield components, harvest index of CUMIN and also number and weight of WEED species. Results showed the CRITICAL PERIOD was between 24-38 days after germination. With increasing interfering period at early or late growth stages of CUMIN, the ECONOMIC YIELD was reduced. By extending WEEDing periods at early stage of growth or during the growth period, dry weight of WEEDs were reduced, while extending WEEDing period at the end of growth stage and also WEED free during growth period, early or late stages of growth had no significant effects on yield components except on number of umbels per plant. Harvest index was positively affected by early WEEDing. It appears that early WEEDing was somehow more effective on yield components for CUMIN.

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تعیین دوره بحرانی کنترل علفهای هرز پنبه (Gossypium hirsutum) در منطقه ورامین

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APA: Copy

HOSSEINI, AZADEH, KOUCHAKI, ALI REZA, & NASIRI MAHALATI, MAHDI. (2006). CRITICAL PERIOD OF WEED CONTROL IN CUMIN (CUMINUM CYMINUM). IRANIAN JOURNAL OF FIELD CROPS RESEARCH, 4(1), 23-34. SID. https://sid.ir/paper/119044/en

Vancouver: Copy

HOSSEINI AZADEH, KOUCHAKI ALI REZA, NASIRI MAHALATI MAHDI. CRITICAL PERIOD OF WEED CONTROL IN CUMIN (CUMINUM CYMINUM). IRANIAN JOURNAL OF FIELD CROPS RESEARCH[Internet]. 2006;4(1):23-34. Available from: https://sid.ir/paper/119044/en

IEEE: Copy

AZADEH HOSSEINI, ALI REZA KOUCHAKI, and MAHDI NASIRI MAHALATI, “CRITICAL PERIOD OF WEED CONTROL IN CUMIN (CUMINUM CYMINUM),” IRANIAN JOURNAL OF FIELD CROPS RESEARCH, vol. 4, no. 1, pp. 23–34, 2006, [Online]. Available: https://sid.ir/paper/119044/en

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