2016
DOI: 10.15361/1984-5529.2016v44n4p543-548
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Abstract: Sugarcane had great change in its production environment with the adoption of mechanized harvesting, highlighting the increasing importance of morning glory, for which there is no information about its interference in sugarcane cycle. The aim of this study was to determine the period prior to interference (PPI) of a weed community with predominance of Ipomoea hederifolia on sugarcane 'SP81-3250' in sugarcane plant cycle and its effect on technological parameters. Treatments consisted of increasing coexistence … Show more

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Cited by 6 publications
(5 citation statements)
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“…Kuva et al (2001) demonstrated that losses of up to 82% were observed in areas where the predominant weed species was signalgrass, while Kuva et al (2003) verified reductions of 40% in areas with mixed infestation of signalgrass and guinea grass. Other authors have also made similar observations for other weed species in sugarcane plantations in the state of São Paulo, whose potential yield loss varied according to the type of infestation of the area (Silva et al, 2009;Piza et al, 2016;Bressanin et al, 2016).…”
Section: Introductionsupporting
confidence: 63%
See 1 more Smart Citation
“…Kuva et al (2001) demonstrated that losses of up to 82% were observed in areas where the predominant weed species was signalgrass, while Kuva et al (2003) verified reductions of 40% in areas with mixed infestation of signalgrass and guinea grass. Other authors have also made similar observations for other weed species in sugarcane plantations in the state of São Paulo, whose potential yield loss varied according to the type of infestation of the area (Silva et al, 2009;Piza et al, 2016;Bressanin et al, 2016).…”
Section: Introductionsupporting
confidence: 63%
“…In general, coexistence with morning glories (I. quamoclit and I. hederifolia) had less influence on the dry matter accumulation of sugarcane, mainly for RB92579. Piza (2016) reported interference of I. hederifolia from 76 days after emergence, reducing crop yield by 17.5%, but this species presents a small accumulation of dry matter and macronutrients at the beginning of its cycle, being intensified at 63 days after emergence, with maximum accumulation at 139 and 140 days, for I. hederifolia and I. quamoclit, respectively, so that it can be inferred that the most intense competition can occur only at the most advanced stage of development of the crop (Carvalho et al, 2009;Guzzo et al, 2010). This contrasts with what was observed for velvet bean, which also has a climbing habit, whose interference starts at 50 days after sprouting and lasts up to 188 days, reducing yield by 50% (Bressanin et al, 2016).…”
mentioning
confidence: 99%
“…Thus, given the high infestation of Ipomoea spp. in sugarcane areas and the high economic importance of this crop (Piza et al 2016;Viator et al 2002), the results obtained in the present study can serve as a basis for discriminating these weed species through specific bands obtained by NIR spectral analysis (especially 4,240 to 5,540 cm −1 ). In addition, the best preprocessing to be used was also elucidated, which could provide a basis for the development of sensors with high accuracy in the discrimination of Ipomoea spp.…”
Section: Ipomoea Hederifoliamentioning
confidence: 71%
“…Such species is native to the Americas, occurring in the Central Brazilian Savanna, Atlantic Rainforest, and Pampa regions (Loeuille, 2020). Despite being present in carrots (Daucus carrota L.) and sugarcane (Saccharum officinarum L.)-growing fields, G. americana represents a more serious threat to soybeans, maize, common oats, and wheat (Triticum aestivum L.) production in Brazil (Piza et al, 2016).…”
Section: Introductionmentioning
confidence: 99%