INVESTIGATION THE EFFECT OF WEEDING TIME ON THE SPECIES COMPOSITION, PLANT DENSITY, DRY WEIGHT AND PHYSIOLOGICAL TRAITS OF WEEDS IN SWEET CORN IN AHWAZ

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KIANI S.; ALIZADEH O.; BAZR AFSHAN F.; ZAKERNEZHAD S.

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Journal: CROP PHYSIOLOGY Year:2012 | Volume:4 | Issue:15 Page(s): 99-112

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Title

INVESTIGATION THE EFFECT OF WEEDING TIME ON THE SPECIES COMPOSITION, PLANT DENSITY, DRY WEIGHT AND PHYSIOLOGICAL TRAITS OF WEEDS IN SWEET CORN IN AHWAZ

Author(s)

KIANI S. | ALIZADEH O. | BAZR AFSHAN F. | ZAKERNEZHAD S. | Issue Writer Certificate

Keywords

LEAF AREA INDEXQ2

DRY WEIGHT WEEDSQ2

GROWTH RATEQ3

Abstract

In order to investigate the effect of weeding time on the species composition, density, dry weight and physiological characteristics of weeds in sweet corn (sc 403) an experiment was conducted in a randomized complete block design with four replications in the farm of Shahid Salemi located in the notheren of Ahvaz, during 2010. Treatments included weeding different phonological periods of corn growth including4 th leaf (V4, 6 th leaf (V6), 8 th leaf (V8), 10 th leaf (V10), 14 th leaf (V14), tasseling with weed infestation treatments till the mentioned stages and two weeding treatments and weed infestation to the end of growth season as control. Data of this experiment was obtained by measuring weeds characters of control treatments in the end of season and infestation treatments in the end of above stages. Results showed that weeds density at infestation treatments increased to corn8 th leaf stages and after it, decreased but the weeds delivered their copmetitve pressure in to the plant community. Also, weeds dry weight and density in the end of season during the control stages had an decreasing trend and Pig weed has recognized as the dominant weed and the highest LEAF AREA INDEXand weed speed rate durind infestation stage was related to this weed. In this experiment, weeds control after10 th leaf and before4 th leaf corn stage, had not significant effect on increasing yeild.

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References

EFFECTS OF PLANTING DENSITY AND WEEDING TIME ON WEEDS AND AUTUMN CHICKPEA DRY MATTER

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APA: Copy

KIANI, S., ALIZADEH, O., BAZR AFSHAN, F., & ZAKERNEZHAD, S.. (2012). INVESTIGATION THE EFFECT OF WEEDING TIME ON THE SPECIES COMPOSITION, PLANT DENSITY, DRY WEIGHT AND PHYSIOLOGICAL TRAITS OF WEEDS IN SWEET CORN IN AHWAZ. CROP PHYSIOLOGY, 4(15), 99-112. SID. https://sid.ir/paper/174457/en

Vancouver: Copy

KIANI S., ALIZADEH O., BAZR AFSHAN F., ZAKERNEZHAD S.. INVESTIGATION THE EFFECT OF WEEDING TIME ON THE SPECIES COMPOSITION, PLANT DENSITY, DRY WEIGHT AND PHYSIOLOGICAL TRAITS OF WEEDS IN SWEET CORN IN AHWAZ. CROP PHYSIOLOGY[Internet]. 2012;4(15):99-112. Available from: https://sid.ir/paper/174457/en

IEEE: Copy

S. KIANI, O. ALIZADEH, F. BAZR AFSHAN, and S. ZAKERNEZHAD, “INVESTIGATION THE EFFECT OF WEEDING TIME ON THE SPECIES COMPOSITION, PLANT DENSITY, DRY WEIGHT AND PHYSIOLOGICAL TRAITS OF WEEDS IN SWEET CORN IN AHWAZ,” CROP PHYSIOLOGY, vol. 4, no. 15, pp. 99–112, 2012, [Online]. Available: https://sid.ir/paper/174457/en

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