Effects of Green Foxtail and Lamb’s-Quarters Interference in Field Corn

Sibuga, K. P.; Bandeen, J. D.

doi:10.4141/cjps80-196

Cited by 34 publications

(28 citation statements)

References 2 publications

(3 reference statements)

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“…The impact of lamb's-quarters interference on corn estimated here is higher than in several previous studies. Sibuga and Bandeen (1980) reported reductions in corn yield only at lamb'squarters densities above 46 plants m -2 in 1 yr and above 109 plants m -2 in another. Maximum yield losses at lamb'squarters populations of approximately 250 plants m -2 were 38 to 58%.…”

Section: Discussionmentioning

confidence: 96%

“…Previous studies of lamb's-quarter's interference in corn in Ontario (Sibuga and Bandeen 1980) and Illinois (Beckett et al 1988) suggested that this weed was not very competitive. However, in both studies the weed emerged 2 to 4 wk after the crop, and in one study also suffered from insect infestation.…”

mentioning

confidence: 92%

“…The effect of the duration of lamb's-quarter's interference on soybean yield in Michigan (Crook and Renner 1990), Ohio (Harrison 1990), andNorth Carolina (Shurtleff andCoble 1985), has been documented, but competition coefficients for the rectangular hyperbolic damage function with season-long interference were not calculated. Similarly, effects of various densities of common ragweed and green foxtail on yield of corn or soybeans have been documented (Staniforth 1965;Sibuga and Bandeen 1980;Coble et al 1981;Shurtleff and Coble 1985), but not over a wide enough range of densities to parameterize a damage function for use in a decision support system, and not under environments or production systems consistent with those found in Ontario.…”

mentioning

confidence: 92%

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Impact of lamb’s-quarters, common ragweed and green foxtail on yield of corn and soybean in Ontario

Weaver¹

2001

Can. J. Plant Sci.

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Weaver, S. E. 2001. Impact of lamb's-quarters, common ragweed and green foxtail on yield of corn and soybean in Ontario. Can. J. Plant Sci. 81: 821-828. Field studies were conducted in Harrow, Ontario, from 1990 to 1993 to quantify the relationship between yield of field corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] and density of lamb's-quarters (Chenopodium album L.), common ragweed (Ambrosia artemisiifolia L.), and green foxtail [Setaria viridis (L.) Beauv.]. Experiments were conducted separately for each weed and crop combination. Weeds emerged at the same time as or within a week of the crop. Coefficients of the rectangular hyperbolic damage function were estimated for each year and pooled over years. In both crops, lamb's-quarters was the most competitive of the three weed species, and green foxtail was the least competitive at low densities. Maximum yield loss at high weed density varied with weed species in field corn, but not in soybean. The estimated competition coefficients of the damage function have been incorporated in a decision support system for integrated weed management in Ontario. Les adventices lèvent en même temps que la culture ou dans la semaine qui suit. L'auteur a estimé les coefficients de l'hyperbole rectangulaire servant à évaluer les dommages chaque année avant d'en faire la moyenne. À faible densité, le chénopode blanc est l'adventice la plus compétitive dans les deux cultures, la sétaire verte se trouvant à l'autre extrémité de la courbe. La baisse de rendement maximale à une forte densité d'adventices varie avec le type de mauvaise herbe dans les champs de maïs mais pas dans ceux de soja. Les coefficients de concurrence estimatifs des adventices ont été ajoutés à la fonction utilisée pour évaluer les dommages en vue d'élaborer un système qui permettra d'étayer les décisions relatives à une lutte intégrée contre les mauvaises herbes en Ontario.

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Section: Discussionmentioning

confidence: 96%

mentioning

confidence: 92%

mentioning

confidence: 92%

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Impact of lamb’s-quarters, common ragweed and green foxtail on yield of corn and soybean in Ontario

Weaver¹

2001

Can. J. Plant Sci.

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“…The interactions of environments with genotypes and managements showed a huge variability as a consequence of climatic parameters, indicating that there is no interaction and therefore, the management had a similar effect over all genotypes. Indeed Sibuga & Bandeen (1980) and Cavero et al (1999) found that the relationship between crop-weed emergences for competition was very dependent on the climatic conditions.…”

Section: Discussionmentioning

confidence: 99%

Effect of weeding management on the performance of local maize populations

Peña-Asín¹,

Costar²,

Álvarez³

2013

Span. j. agric. res.

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One of the most important stress factors in maize (Zea mays L.) fields is weed competition, which reduces the crop yield. Weeds chiefly interfere with maize and establish considerable competition for light, water and nutrients. To avoid these harmful effects, there are different agronomic measures and factors among which, the most relevant are the interactions between crop and weed, weed management practices and type of germplasm. This study attempts to evaluate maize germplasm for tolerance to weed competition in order to achieve competitive ability and suitability for farming. Ten genotypes of maize, classified into two groups, i.e. improved populations and traditional cultivars, were grown under four types of weed management practices (mechanical harrowing control, chemical control, combination of harrowing and chemical control and untreated control as check) for three years (from 2009 to 2011) in Zaragoza (Spain). We found that the effect of weed management practices was not significantly different, whereas the genotype effect was highly significant, with genotype EZS34 (mean yield of 7.7 Mg ha -1 ) showing the highest yield. Other traits, such as earliness, displayed a good behaviour under weed competition. On the other hand, harrowing management proved to be the most effective method of weed control although it did not show a significant response. The best results are associated with some maize genotypes that have a specific adaptation to local conditions, according to their genetic background.

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“…Des études ont démontré que le ché-nopode blanc entraîne une réduction des rendements du maïs {Zea mays L.) (Sibuga et Bandeen 1980) (Lapointe et al 1984). Chez l'orge {Hor-deum vulgare L.), des populations de chénopodes de 150 et 300 plants m 2 ont réduit les rendements en grain de 23 % et 36 % respectivement (Conn et Thomas 1987).…”

Section: Introductionunclassified

Effet de la dose de semis et de l’écartement entre les rangs sur l’interférence entre le Chenopodium album et le Triticum aestivum

Pageau¹,

Tremblay²

2005

phyto

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Un essai répété 4 années a permis d'évaluer l'effet de la présence du chénopode (Chenopodium album) sur la productivité du blé (Triticum aestivum 'Max'). La céréale a été ensemencée à cinq doses de semis (100, 200,300, 400 et 500 grains viables m-2) et à deux écartements entre les rangs (10 et 18 cm). Une réduction de l'écartement entre les rangs a permis d'accroître les rendements en blé de 16 % en présence ou non du chénopode. La dose de semis est un facteur plus important que l'écartement entre les rangs. À une dose de semis de 100 grains m-2, la présence du chénopode a causé une réduction du rendement en grain de 23 % tandis que cette réduction était de 11 % avec une dose de semis de 500 grains m-2. La baisse de rendement en blé provoquée par la présence de chénopode est surtout attribuable à une réduction du nombre d'épis par unité de surface. Le chénopode a également réduit le nombre d'épis par plant et le nombre de grains par épi tandis que le poids de 1000 grains et l'indice de récolte ont été peu affectés. Les contenus en azote et en phosphore du grain de blé ont été réduits par la présence du chénopode. Une réduction de l'écartement entre les rangs ou une augmentation de la dose de semis du blé n'a pas permis de réduire le nombre de plants mais a réduit la biomasse du chénopode.

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Effects of Green Foxtail and Lamb’s-Quarters Interference in Field Corn

Cited by 34 publications

References 2 publications

Impact of lamb’s-quarters, common ragweed and green foxtail on yield of corn and soybean in Ontario

Impact of lamb’s-quarters, common ragweed and green foxtail on yield of corn and soybean in Ontario

Effect of weeding management on the performance of local maize populations

Effet de la dose de semis et de l’écartement entre les rangs sur l’interférence entre le Chenopodium album et le Triticum aestivum

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