INVESTIGATION OF WHEAT AND WEEDS INTERFERENCE IN FILED CONDITIONS

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SALEHIAN H.; GHANBARI ALI; RAHIMIAN MASHHADI H.; MAJIDI HERAVAN E.

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Journal: Iranian Journal of Field Crops Research Year:2004 | Volume:1 | Issue:1 Page(s): 109-121

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Information Journal Paper

Title

INVESTIGATION OF WHEAT AND WEEDS INTERFERENCE IN FILED CONDITIONS

Author(s)

SALEHIAN H. | GHANBARI ALI | RAHIMIAN MASHHADI H. | MAJIDI HERAVAN E. | Issue Writer Certificate

Keywords

COMPETITIONQ2

LOSS COEFFICIENTQ4

WHEATQ3

Abstract

To examine the weeds loss and to determine the most suitable variable for WHEAT yield loss estimation in Field condition and multi species COMPETITION, of weeds An experiment was Carried out at the research field of agficultural Faculty of Ghaemshahr Azad University during 1998-1999. For the Purpose, 27 samples of 5x5(m) were selected from the field and in some stages, the weeds density species widow was counted, also at the end of the season dry weight oa all species were separately measured. To compare the COMPETITION and to evaluate and species LOSS COEFFICIENT, some variables such as, density, dry weight in are unit, crop equivalent ratio and average dry weight of weeds per plant were measured.According to the results, weeds biomass compared to the density had obtained better evaluation of WHEAT yield loss. In the following equation: considering the equation coefficient, it was observed that the weed interference effect on WHEAT can be divided in two groups; inhibition (positive sign) and stimulation (negative sign). The share of the WHEAT intraspecies COMPETITION was more than interspecies COMPETITION. Two species of Turnip weed (Rapistrum rugosum) and Wild oat (Avenafatua) had the most share in WHEAT yield loss, while Bird's eyes species (Veronica persica) and Wormwood (Artemisia sp.) showed the less effect on WHEAT yield loss in this experiment. It was found that the positive effect of some weeds, in relation to inhibition property themselves on the weeds that have the most capable COMPETITION.

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APA: Copy

SALEHIAN, H., GHANBARI, ALI, RAHIMIAN MASHHADI, H., & MAJIDI HERAVAN, E.. (2004). INVESTIGATION OF WHEAT AND WEEDS INTERFERENCE IN FILED CONDITIONS. IRANIAN JOURNAL OF FIELD CROPS RESEARCH, 1(1), 109-121. SID. https://sid.ir/paper/119240/en

Vancouver: Copy

SALEHIAN H., GHANBARI ALI, RAHIMIAN MASHHADI H., MAJIDI HERAVAN E.. INVESTIGATION OF WHEAT AND WEEDS INTERFERENCE IN FILED CONDITIONS. IRANIAN JOURNAL OF FIELD CROPS RESEARCH[Internet]. 2004;1(1):109-121. Available from: https://sid.ir/paper/119240/en

IEEE: Copy

H. SALEHIAN, ALI GHANBARI, H. RAHIMIAN MASHHADI, and E. MAJIDI HERAVAN, “INVESTIGATION OF WHEAT AND WEEDS INTERFERENCE IN FILED CONDITIONS,” IRANIAN JOURNAL OF FIELD CROPS RESEARCH, vol. 1, no. 1, pp. 109–121, 2004, [Online]. Available: https://sid.ir/paper/119240/en

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