EVALUATION OF COMPETITIVE ABILITY OF CORN (ZEA MAYS) AND LAMBSQUARTER (CHENOPODIUM ALBUM) AS INFLUENCED BY PLANTING PATTERN USING EMPIRICAL MODELS

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FATEH E.; SHARIFZADEH F.; MAZAHERI D.; BAGHESTANI MEYBODI M.A.; BANKEHSAZ A.

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Journal: Desert Year:2006 | Volume:11 | Issue:1 Page(s): 55-64

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Title

EVALUATION OF COMPETITIVE ABILITY OF CORN (ZEA MAYS) AND LAMBSQUARTER (CHENOPODIUM ALBUM) AS INFLUENCED BY PLANTING PATTERN USING EMPIRICAL MODELS

Author(s)

Keywords

CORNQ3

LAMBSQUARTERQ3

COMPETITION MODELSQ3

DENSITYQ2

PLANTING PATTERNQ4

Abstract

This experiment was conducted to evaluate the competition relationship of CORN (Zea mays) and LAMBSQUARTER (Chenopodium album) at the Research Farm of Agricultural Faculty, University of Tehran in 2002. Two considered factors were:1) seven LAMBSQUARTER densities of 0, 5, 10, 15, 20, 25 and 30 plant /m2 and 2) two different PLANTING PATTERNs of CORN including one row (conventional) and double row sowing methods. Linear reciprocal and yield loss models were fitted to collected data’s and calculated coefficients of those fitted models were used to compare the competitive relationship of those two species as affected by two different PLANTING PATTERNs. The result revealed that applied double row spacing PLANTING PATTERN enhanced the competitiveness of CORN against LAMBSQUARTER for grain yield but not for the biological yield. Coefficients of hyperbolic model (yield loss) I (yield loss as weed DENSITY approaches zero) and A (asymptotic value of yield loss at high weed DENSITY) were lower for double row PLANTING PATTERN in compare with conventional one. The coefficients of A and I were 6.7, 44.5 in conventional pattern and 3.5, 41.6 in double row, respectively. Therefore according to these results it would be possible to obtain higher CORN grain yield by sowing CORN in double rows pattern in fields infested by LAMBSQUARTER weeds.

Cites

EFFECT OF RYE (SECALE CEREALE) AND WILD MUSTARD (SINAPIS ARVENSIS) COMPETITION ON YIELD AND YIELD CCOMPONENTS OF TWO WINTER WHEAT (TRITICUM AESTIVUM L.) CULTIVARS

References

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APA: Copy

FATEH, E., SHARIFZADEH, F., MAZAHERI, D., BAGHESTANI MEYBODI, M.A., & BANKEHSAZ, A.. (2006). EVALUATION OF COMPETITIVE ABILITY OF CORN (ZEA MAYS) AND LAMBSQUARTER (CHENOPODIUM ALBUM) AS INFLUENCED BY PLANTING PATTERN USING EMPIRICAL MODELS. DESERT (BIABAN), 11(1), 55-64. SID. https://sid.ir/paper/5289/en

Vancouver: Copy

FATEH E., SHARIFZADEH F., MAZAHERI D., BAGHESTANI MEYBODI M.A., BANKEHSAZ A.. EVALUATION OF COMPETITIVE ABILITY OF CORN (ZEA MAYS) AND LAMBSQUARTER (CHENOPODIUM ALBUM) AS INFLUENCED BY PLANTING PATTERN USING EMPIRICAL MODELS. DESERT (BIABAN)[Internet]. 2006;11(1):55-64. Available from: https://sid.ir/paper/5289/en

IEEE: Copy

E. FATEH, F. SHARIFZADEH, D. MAZAHERI, M.A. BAGHESTANI MEYBODI, and A. BANKEHSAZ, “EVALUATION OF COMPETITIVE ABILITY OF CORN (ZEA MAYS) AND LAMBSQUARTER (CHENOPODIUM ALBUM) AS INFLUENCED BY PLANTING PATTERN USING EMPIRICAL MODELS,” DESERT (BIABAN), vol. 11, no. 1, pp. 55–64, 2006, [Online]. Available: https://sid.ir/paper/5289/en

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