Assessment of intra-and inter-specific competition between wheat (Triticum aestivum L. ) and hoary cress (Cardaria draba L. ) under different levels of nitrogen by reciprocal yield model

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Hasanvand Fereshte; MAHMOODI SOHRAB; ESLAMI SEYED VAHID

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Journal: Iranian Journal of Field Crop Science Year:2017 | Volume:48 | Issue:1 Page(s): 81-90

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Information Journal Paper

Title

Assessment of intra-and inter-specific competition between wheat (Triticum aestivum L. ) and hoary cress (Cardaria draba L. ) under different levels of nitrogen by reciprocal yield model

Author(s)

Hasanvand Fereshte | MAHMOODI SOHRAB | ESLAMI SEYED VAHID | Issue Writer Certificate

Keywords

Competition indicesQ2

interactionQ1

relative competitive abilityQ2

wheat densityQ1

weed densityQ2

Abstract

The ability of hoary cress to absorb water and nutrients, due to creeping and extensive root system, indicates that this weed is importunate competitor for crop plants. To determine intra-and inter-specific competition between wheat and hoary cress by reciprocal yield model and other Competition indices under different nitrogen levels, a factorial experiment based on RCBD was conducted with three replications in Research Greenhouse of Faculty of Agriculture, University of Birjand during 2013. Factors considered included pure nitrogen in three levels (0. 05, 0. 1 and 0. 2 gr/kg soil), wheat density in four levels (0, 4, 8 and 12 plants per pot) and hoary cress density in four levels (0, 2, 4 and 6 plants per pot). The result of reciprocal yield model showed that in wheat intera-specific competition was higher than inter-specific competition, but in hoary cress, intera-specific was higher. Relative competitiveness assessment showed that the effect of a wheat plant at three levels, 0. 05, 0. 1 and 0. 2 grN/kg soil was equal to 5. 1, 4. 45 and 4. 42 hoary cress plant respectively, and the effect of a wheat plant at the same fertilizer, was equivalent whit 94, 84 and 88% of the wheat plant respectively.

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APA: Copy

Hasanvand, Fereshte, MAHMOODI, SOHRAB, & ESLAMI, SEYED VAHID. (2017). Assessment of intra-and inter-specific competition between wheat (Triticum aestivum L. ) and hoary cress (Cardaria draba L. ) under different levels of nitrogen by reciprocal yield model. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 48(1 ), 81-90. SID. https://sid.ir/paper/153732/en

Vancouver: Copy

Hasanvand Fereshte, MAHMOODI SOHRAB, ESLAMI SEYED VAHID. Assessment of intra-and inter-specific competition between wheat (Triticum aestivum L. ) and hoary cress (Cardaria draba L. ) under different levels of nitrogen by reciprocal yield model. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2017;48(1 ):81-90. Available from: https://sid.ir/paper/153732/en

IEEE: Copy

Fereshte Hasanvand, SOHRAB MAHMOODI, and SEYED VAHID ESLAMI, “Assessment of intra-and inter-specific competition between wheat (Triticum aestivum L. ) and hoary cress (Cardaria draba L. ) under different levels of nitrogen by reciprocal yield model,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 48, no. 1 , pp. 81–90, 2017, [Online]. Available: https://sid.ir/paper/153732/en

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