ANALYSIS OF COMPETITION BETWEEN WILD MUSTARD (SINAPIS ARVENSIS L.) AND WINTER WHEAT (TRITICUM AESTIVUM L.) BY COMPETITION INDICES

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MOUSAVI S.K.; RAHIMIAN H.; BANAYAN AVAL M.; GHANBARI A.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2003 | Volume:10 | Issue:2 Page(s): 135-146

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Title

ANALYSIS OF COMPETITION BETWEEN WILD MUSTARD (SINAPIS ARVENSIS L.) AND WINTER WHEAT (TRITICUM AESTIVUM L.) BY COMPETITION INDICES

Author(s)

MOUSAVI S.K. | RAHIMIAN H. | BANAYAN AVAL M. | GHANBARI A. | Issue Writer Certificate

Keywords

PLANT COMPETITIONQ4

RELATIVE COMPETITIVE ABILITYQ4

DEGREE OF NICH DIFFERENTIATIONQ4

RELATIVE COMPETITIVE INTENSITYQ4

Abstract

In order to describe competitive relationships between winter wheat and wild mustard by competition indices, an additive series experiment was conducted in 2001- 2002 at agricultural research station of Mashhad University. The experiment had 3 factors: 3 levels of wheat seed rate (175, 215 and 225 kg/ha), 2 levels of nitrogen rate at optimum and upper optimum rate of wheat (150 and 225 kg N/ha), and 4 levels of wild mustard density (0,8, 16 and 32 plants/m2). Regression analysis was used to describe competitive relationships. The reciprocal of per plant model was used to determine intra and interspecific competitive coefficient. Plant relative competitive abilities (RCA) revealed that wild mustard was more competitors than wheat (based on wheat biomass RCA of 0.37 for wheat and wild mustard biomass RCA of2.75 for wild mustard). Degree of inch differentiation for wheat and wild mustard decreased from 1.67 to 0.54 as nitrogen rate increased. Wheat RELATIVE COMPETITIVE INTENSITY (RCI) showed reduction in interspecific competition due to increasing in wheat seed rate.

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APA: Copy

MOUSAVI, S.K., RAHIMIAN, H., BANAYAN AVAL, M., & GHANBARI, A.. (2003). ANALYSIS OF COMPETITION BETWEEN WILD MUSTARD (SINAPIS ARVENSIS L.) AND WINTER WHEAT (TRITICUM AESTIVUM L.) BY COMPETITION INDICES. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 10(2), 135-146. SID. https://sid.ir/paper/9506/en

Vancouver: Copy

MOUSAVI S.K., RAHIMIAN H., BANAYAN AVAL M., GHANBARI A.. ANALYSIS OF COMPETITION BETWEEN WILD MUSTARD (SINAPIS ARVENSIS L.) AND WINTER WHEAT (TRITICUM AESTIVUM L.) BY COMPETITION INDICES. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2003;10(2):135-146. Available from: https://sid.ir/paper/9506/en

IEEE: Copy

S.K. MOUSAVI, H. RAHIMIAN, M. BANAYAN AVAL, and A. GHANBARI, “ANALYSIS OF COMPETITION BETWEEN WILD MUSTARD (SINAPIS ARVENSIS L.) AND WINTER WHEAT (TRITICUM AESTIVUM L.) BY COMPETITION INDICES,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 10, no. 2, pp. 135–146, 2003, [Online]. Available: https://sid.ir/paper/9506/en

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