INVESTIGATION ON THE MECHANISMS OF COMPETITION OF BARNYARDGRASS (ECHINOCHLOA CRUS-GALLI) AND RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) WITH DRY BEAN (PHASEOLUS VULGARIS)

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IZADI DARBANDI E.; RASHED MOHASEL M.H.; NASSIRI M.; MAKARIAN H.

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Journal: Iranian Journal of Field Crops Research Year:2004 | Volume:1 | Issue:2 Page(s): 155-166

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Title

INVESTIGATION ON THE MECHANISMS OF COMPETITION OF BARNYARDGRASS (ECHINOCHLOA CRUS-GALLI) AND RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) WITH DRY BEAN (PHASEOLUS VULGARIS)

Author(s)

IZADI DARBANDI E. | RASHED MOHASEL M.H. | NASSIRI M. | MAKARIAN H. | Issue Writer Certificate

Keywords

COMPETITIONQ2

DRY BEANQ2

BARNYARDGRASSQ2

REDROOT PIGWEEDQ3

YIELD AND GROWTH INDEXESQ4

Abstract

To study the mechanisms of COMPETITION of BARNYARDGRASS and REDROOT PIGWEED with DRY BEAN, an additive experiment was conducted at farm of Ferdowsi University of Mashhad experimental station. The experiment was laid out in completely randomized block (CRB), with three replications. Treatments included three levels of REDROOT PIGWEED densities (4, 8, 12 plant/m2) and three levels of BARNYARDGRASS (10, 20, 30 plant/m2) planted at constant density of DRY BEAN (20 plant/m2) plus weed free check in each block. Results showed total dry matter (TDM), growth rate, height and bean leaf area of bean decreased significantly. In all above parameters, REDROOT PIGWEED was more effective on DRY BEAN than BARNYARDGRASS. Meanwhile, excluding the early season growth, REDROOT PIGWEED growth index curves exceed from bean. However, in BARNYARDGRASS except the end of the season (bean physiologycal ripening period) growth index curves were lower than bean. Higher height and leaf position of REDROOT PIGWEED in mix canopy from early season resulted in being REDROOT PIGWEED more competitive for light than bean. However, BARNYARDGRASS weakness in latter two parameters during growing season was the main reason for its weakness for light COMPETITION. Apparently, BARNYARDGRASS imposed its competetive effects via partitioning the assimilates to roots wherease, REDROOT PIGWEED, imposed its competitive from roots and mainly foliages.

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APA: Copy

IZADI DARBANDI, E., RASHED MOHASEL, M.H., NASSIRI, M., & MAKARIAN, H.. (2004). INVESTIGATION ON THE MECHANISMS OF COMPETITION OF BARNYARDGRASS (ECHINOCHLOA CRUS-GALLI) AND RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) WITH DRY BEAN (PHASEOLUS VULGARIS). IRANIAN JOURNAL OF FIELD CROPS RESEARCH, 1(2), 155-166. SID. https://sid.ir/paper/119376/en

Vancouver: Copy

IZADI DARBANDI E., RASHED MOHASEL M.H., NASSIRI M., MAKARIAN H.. INVESTIGATION ON THE MECHANISMS OF COMPETITION OF BARNYARDGRASS (ECHINOCHLOA CRUS-GALLI) AND RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) WITH DRY BEAN (PHASEOLUS VULGARIS). IRANIAN JOURNAL OF FIELD CROPS RESEARCH[Internet]. 2004;1(2):155-166. Available from: https://sid.ir/paper/119376/en

IEEE: Copy

E. IZADI DARBANDI, M.H. RASHED MOHASEL, M. NASSIRI, and H. MAKARIAN, “INVESTIGATION ON THE MECHANISMS OF COMPETITION OF BARNYARDGRASS (ECHINOCHLOA CRUS-GALLI) AND RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) WITH DRY BEAN (PHASEOLUS VULGARIS),” IRANIAN JOURNAL OF FIELD CROPS RESEARCH, vol. 1, no. 2, pp. 155–166, 2004, [Online]. Available: https://sid.ir/paper/119376/en

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