Baghestani, M., Zand, E., Aghabigi, M. (2006). The effects of lambsquarters (Chenopodium album) density and its relative time of emergence on yield and yield components of grain corn (Zea mays)(Article in English). , 74(No. 1), 1-25.
M. A. Baghestani; E. Zand; M. Aghabigi. "The effects of lambsquarters (Chenopodium album) density and its relative time of emergence on yield and yield components of grain corn (Zea mays)(Article in English)". , 74, No. 1, 2006, 1-25.
Baghestani, M., Zand, E., Aghabigi, M. (2006). 'The effects of lambsquarters (Chenopodium album) density and its relative time of emergence on yield and yield components of grain corn (Zea mays)(Article in English)', , 74(No. 1), pp. 1-25.
Baghestani, M., Zand, E., Aghabigi, M. The effects of lambsquarters (Chenopodium album) density and its relative time of emergence on yield and yield components of grain corn (Zea mays)(Article in English). , 2006; 74(No. 1): 1-25.

The effects of lambsquarters (Chenopodium album) density and its relative time of emergence on yield and yield components of grain corn (Zea mays)(Article in English)

آفات و بیماری‌ های گیاهی
Volume 74, No. 1 - Serial Number 81, September 2006, Pages 1-25    PDF (102.8 K)
Authors
M. A. Baghestani; E. Zand; M. Aghabigi
Abstract
To investigate the effects of lambsquarters density and its relative time of emergence on yield and yield components of grain corn a two year experiment was conducted in 2001 and 2002 growing seasons in the research field of Weed Research Department, Plant Pests and Diseases Research Institute, Karaj. Both experiments were conducted using factorial arrangement of treatments in a randomized complete block design with 3 replications. The treatments were the relative time of lambsquarters emergence (1st year: simultaneously, at 2-3 and 4-5 leaves stages of corn; 2nd year: simultaneously, at 2-3 and 5-6 leaves stages of corn) and lambsquarters density (first year: 2, 5, 10 and 15 plant.m-2; second year: 6.6, 13.3 and 20 plant.m-2). A pure plot of corn was also cultivated to evaluate grain yield of corn in weed free conditions. The results indicated that both treatments had significant effects on grain and biological yields, harvest index, grain number/ear row and row number/ear of corn. Thousand-seed weight was not affected by lambsquarters density. The results also showed that the negative effect of interference period on corn was more than that of density. In conclusion, a delay in lambsquarters emergence and a good management against it at the beginning of the growth season can increase the competitive ability of corn against lambsquarters.
Keywords
corn; lambsquarters; competition; yield; yield components
Supplementary Files
References

AGHA-ALIKHANI, M., 2001. Ecophysiological aspects of competition between Amaranthus retroflexus and Zea mays. Ph.D. Thesis. TarbiatModaresUniversity. (in Persian with English summary).

BECKETT, T. H. E., W. STOLLER and L. M. WAX, 1988. Interference of four annual weeds in corn (Zea mays). Weed Sci. 36: 764-769.

BIELINSKI, M.S., J.A. DUSKY, W. M. STALL and J.P.GILREATH, 2004. Influence of common lambsquarters (Chenopodium album) densities and phosphorus fertilization on lettuce. Crop Protection. 23:173-176.

BOOTH, B.D., S.D.MURPHY and D. G.SWANTON, 2003. Weed ecology in natural and agricultural systems. CAB international publishing. 320 pp.

BOSNIC, A.C. and C.G.SWANTON, 1997. Influence of barnyardgrass (Echinochloa crus-galli) time of emergence and density on corn (Zea mays). Weed Sci. 45: 276-282.

CAVERO, J., C. ZARAGOZA, M.L.SUSO and A.PARDO, 1997. Competition of maize and Datura stramonium in an irrigated field. Proceeding of the 1997 congress of the Spanish weed science society, Valencia, Spain, 24-26 November 1997. 167-171.

COUSENS, R., 1985. An empirical model relating crop yield to weed and crop density and a statistical comparison with other models. Journal of agricultural science. 105:513-521.

CROOK, T.M. and K.A.RENNER, 1990. Common lambsquarters (Chenopodium album) competition and time of removal in soybeans (Glycine max). Weed Sci. 38:358-364.

GELAVI, M., 2002. The study of ecophysiological aspects of competition between Glycine max and Amaranthus retroflexus. Ph.D. Thesis. University of Ferdousi. Mashhad. (In Persian with English summary)

HADIZADEH, M. H., 1996. Critical period of weed control in soybean. M.Sc. Thesis. FerdowsiUniversity of Mashhad. Mashhad. (In Persian with English summary)

HARRISON, S. K., 1990. Interference and seed production by common lambsquarters (Chenopodium album) in soybeans (Glycine max). Weed Sci. 38:113-118.

HARRISON, S.K., E.E.REGNIER, J.T.SCHMOLL and J.E.WEBB, 2001. Competition and fecundity of giant ragweed in corn. Weed Sci. 49:224-229.

KNEZEVIC, S.Z., S.F.WEISE and C.J.SWANTON, 1995. Comparison of empirical models depicting density of Amaranthus retroflexus and relative leaf area as predictors of yield loss in maize (Zea mays). Weed Res. 35:207-215.

LIEBMAN, M.C., L.MOHLER and C. P. STAVER, 2001. Ecological management of agricultural weeds. Cambridge university press. 525 pp.

LITTLE, T.M., 1981. Interpretation and presentation of results. HortScience.16:
637-640.

MALIK, V. S., C.J.SWANTON and T.E.MICHAELS, 1993. Interference of white bean (Phaseolus vulgaris L.) cultivars row spacing and density with annual weeds. Weed Sci. 20: 56-59.

MASSINGA, R.A., R. S. CURRIE, M.J.HORAK and J. BOYER, 2001. Interference of palmer amaranth in corn. Weed Sci. 49: 202-208.

MICKELSON, J.A. and R.C.HARVEY, 1999. Effects of Eriochloa villosa density and time of emergence on growth and seed production in Zea mays. Weed Sci. 47: 687-692.

RADOSEVICH, S. R., 1987. Methods to study interactions among crop and weeds. Weed Technol. 1:190-198.

PETERSEN, R. G., 1977. Use and misuse comparison procedures. Agron. J. 69:
205-208.

RAHMAN, A., 1985. Weed control in maize in New Zealand. Pp 37-45 In: Maize-Management to Market, H. A. Eagles and G.S.Wratt (Eds); Agron. Soc. N. Z., Special pub. No. 4, PalmerstonNorth, New Zealand.

RASHED-MOHASSEL, M.H., H.NAJAFI and M.DOKHT-AKBARZADEH,
2001. Weed biology and control. Ferdowsi University of Mashhad press, Mashhad. 404 pp.
(In Persian).

ROUSH, M.L., S.R.RADOSEVICH, R.G.WAGNER, B.D.MAXWELL and T.D.PETERSEN, 1989. A comparison of methods for measuring effects of density and proportion in plant competition experiments. Weed Sci. 37:268-275.

SARMADNIA, G.H. and A.KOOCHEKI, 1993. Crop physiology. Jihad-e-daneshgahi of Mashhad press. 400pp. (In Persian).

SAS INSTITUTE, 1996. SAS users guide. 3rd ed. SAS Inst., Cary, NC.

SATTIN, M., A.BERTI and G.ZANNIN, 1997. Influence of weed time of emergence and removal on crop yield losses. Expert consultation on weed ecology and management FAO, Rome. 22-24 September 1997.

SIBUGA, K.P. and J.D.BANDEEN, 1980. Effects of green foxtail and lambsquarters interference in field corn. Can. J. Plant Sci. 60:1419-1425.

STRAHAN, R.E., J. L. GRIFFIN, D. B. REYNOLDS and D. K. MILLER, 2000. Interference between Rottoboelia cochinchinensis and Zea mays. Weed Sci. 48:205-211.

WILSON, R.G. and P.WESTRA, 1991. Wild proso millet (Panicum miliaceum) interference in corn (Zea mays). Weed Sci. 39:217-220.

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