Interference Periods of Common Cocklebur (<i>Xanthium strumarium</i>) with Cotton (<i>Gossypium hirsutum</i>)

Snipes, Charles E.; Street, Joe E.; Walker, Robert H.

doi:10.1017/s0043174500060501

Cited by 27 publications

(23 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results of yields related to weed interference agree with those of Snipes and colleagues (1987), Keeley and Thullen (1993), Vencill and colleagues (1993), Oliver and Klingman (1994), and Papamichail and colleagues (2002) who found that cotton yield was positively correlated with the duration of the weed‐free period after crop emergence. Vargas and colleagues (1996) reported that without a 3‐week‐period free of S. nigrum , yield loss was greater than 50%.…”

Section: Discussionsupporting

confidence: 87%

“…Results from these experiments showed that allowing even a 3‐week (160–180 GDD) weed‐interference period, following the use of pre‐planting trifluralin, caused a reduction in seed cotton yield of at least 6%. Snipes and colleagues (1987) found that the critical period for X. strumarium started 2–4 weeks after emergence and ended 8–10 weeks after emergence. Papamichail et al.…”

Section: Discussionmentioning

confidence: 99%

“…Many of them involved only one weed species or compared different treatment effects (e.g. different nitrogen application rate, different row spacing) and the results, therefore, do not accurately represent more normal cropping situations and mixed weed species interference (Buchanan & Burns, 1970; Bridges & Chandler, 1987; Snipes et al. , 1987; Keely & Thullen, 1989; Van Acker et al.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Critical periods for weed control in cotton in Turkey

Bükün

2004

Weed Research

View full text Add to dashboard Cite

Field studies were conducted over 4 years in southeastern Turkey in 1999-2002 to establish the critical period for weed control (CPWC). This is the period in the crop growth cycle during which weeds must be controlled to prevent unacceptable yield losses. A quantitative series of treatments of both increasing duration of weed interference and of the weed-free period were applied. The beginning and end of CPWC were based on 5% acceptable yield loss levels which were determined by fitting logistic and Gompertz equations to relative yield data representing increasing duration of weed interference and weed-free period, estimated as growing degree days (GDD). Total weed dry weight increased with increasing time prior to weed removal. Cotton heights were reduced by prolonged delays in weed removal in all treatments in all 4 years. The beginning of CPWC ranged from 100 to 159 GDD, and the end from 1006 to 1174 GDD, depending on the weed species present and their densities. Practical implications of this study are that herbicides (pre-emergence residual or post-emergence), or other weed control methods should be used in Turkey to eliminate weeds from 1-2 weeks post-crop emergence up to 11-12 weeks. Such an approach would keep yield loss levels below 5%.

show abstract

Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Critical periods for weed control in cotton in Turkey

Bükün

2004

Weed Research

View full text Add to dashboard Cite

show abstract

“…With a mixed population including the large weed common cocklebur, Bukun (2004) reported the start of the CPWC at 100 to 150 GDD with a 5% yield-loss threshold, although that CPWC commenced before planting when Bukun (2004) assigned a 2.5% threshold. Snipes et al (1987) reported the start of the CPWC 14 to 28 d after planting with approximately eight common cocklebur plants m −2 , similar to our 6 to 21 d after planting for eight common sunflower plants m −2 , but many others recorded the start of the CPWC between 19 and 31 DAE (Cardoso et al 2011;Fast et al 2009;Korres and Norsworthy 2015;Papamichail et al 2002).…”

Section: Plant Height and Biomasssupporting

confidence: 82%

Determining the critical period for weed control in high-yielding cotton using common sunflower as a mimic weed

et al. 2019

View full text Add to dashboard Cite

Field studies were conducted over six seasons to determine the critical period for weed control (CPWC) in high-yielding cotton, using common sunflower as a mimic weed. Common sunflower was planted with or after cotton emergence at densities of 1, 2, 5, 10, 20, and 50 plants m−2. Common sunflower was added and removed at approximately 0, 150, 300, 450, 600, 750, and 900 growing degree days (GDD) after planting. Season-long interference resulted in no harvestable cotton at densities of five or more common sunflower plants m−2. High levels of intraspecific and interspecific competition occurred at the highest weed densities, with increases in weed biomass and reductions in crop yield not proportional to the changes in weed density. Using a 5% yield-loss threshold, the CPWC extended from 43 to 615 GDD, and 20 to 1,512 GDD for one and 50 common sunflower plants m−2, respectively. These results highlight the high level of weed control required in high-yielding cotton to ensure crop losses do not exceed the cost of control.

show abstract

“…The influence of weed density on grain production of various crops has been examined extensively in recent years (Graham, Steomer & Wiese, 1988;Regnier & Stoller, 1989;Snipes, Street & Walker, 1987;Stoller et al, 1987;Weaver, 1990). However, limited information is available on the effect of different weed densities on the seed production of the weed itself (A key, Jurik & Dekker, 1990;Ballare et al, 1987;Martin & Field, 1987).…”

Section: Introductionmentioning

confidence: 99%

Influence of intraspecific competition on seed production ofDatura stramoniumL.

Saayman¹

2000

South African Journal of Plant and Soil

View full text Add to dashboard Cite

Field experiments were conducted during two growing seasons to investigate the effect of different Common thorn-apple (Datura stramonium l.) densities on seed production of this specie. Maize (Zea mays l.) was planted in 2.1 m rows with a plant population of 16000 plants.ha-1 . D. stramonium was planted at five densities in association with maize. The time of weed seed production, total seed production of each D. stramonium plant and of each plant population were determined. Seed production of D. stramonium decreased with increasing density stress, with a substantially greater effect during an unfavourable season. The study provided information on timing of weed control and the implications of weed seed contamination in the absence of weed control. This may contribute to more effective, economic and environmentally friendly weed control.'n Veldproef is gedurende twee groeiseisoene geloods om effek van verskillende Gewone stinkblaar (Datura stramonium l.) digthede op die saadproduksie van hierdie spesie te ondersoek. Mielies (Zea mays l.) is in 2.1 m rye geplant, met 'n plantpopulasie van 16 000 plante.ha-1 . Die tye van onkruidsaadproduksie, die totale saadproduksie per D. stramonium plant en per plant populasie is gemoniteer. Saadproduksie van D. stramonium neem af met 'n toemame in onkruiddigtheid, met 'n groter effek in die ongunstige seisoen. Die studie verskaf inligting aangaande die tydigheid van onkruidbeheer en die implikasies van onkruidsaadbesmetting indien geen onkruidbeheer toegepas word nie. Dit kan bydra tot meer effektiewe, ekonomiese en omgewingsvriendelike onkruidbeheer.

show abstract

Interference Periods of Common Cocklebur (Xanthium strumarium) with Cotton (Gossypium hirsutum)

Cited by 27 publications

References 22 publications

Critical periods for weed control in cotton in Turkey

Critical periods for weed control in cotton in Turkey

Determining the critical period for weed control in high-yielding cotton using common sunflower as a mimic weed

Influence of intraspecific competition on seed production ofDatura stramoniumL.

Contact Info

Product

Resources

About