2014
DOI: 10.1590/s0034-737x2014000200003
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Leaf area and epicuticular wax content of Sida spp

Abstract: RESUMOÁrea foliar e conteúdo de cera epicuticular de Sida spp.Características morfofisiológicas e composições químicas estão diretamente relacionadas com a maior habilidade competitiva das culturas. O objetivo deste trabalho foi realizar análise comparativa da produção de matéria seca, de área foliar e de quantidade de cera epicuticular de três espécies de Sida spp.: Sida urens L., Sida rhombifolia L. e Sida spinosa L. Essas espécies foram coletadas em três estádios fenológicos, caracterizados como V1: formaçã… Show more

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Cited by 1 publication
(2 citation statements)
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“…The experimental design was completely randomized, with four replicates, and the treatments were composed of six soybean cultivars, i.e., NS 6909 IPRO, NA 5909 RG IPRO, DM 5958 RSF, Brasmax Elite IPRO, Brasmax Lança IPRO, and SYN 13561 IPRO, and ten densities of arrowleaf sida for each cultivar (0, 2, 3, 4, 9, 15, 16, 23, 22, and 58 plants m -2 ; 0, 2, 3, 3, 6, 6, 10, 11, 18, and 47 plants m -2 ; 0, 3, 4, 7, 8, 10, 11, 13, 15, and 24 plants m -2 ; 0, 1,4,6,12,18,19,31,44, and 50 plants m -2 ; 0, 4,5,6,9,13,17,20,20, and 47 plants m -2 ; and 0, 2, 3, 5, 9, 11, 15, 18, 29, and 30 plants m -2 ). As the arrowleaf sida weed originated from the soil seed bank, the establishment of densities varied with factors such as competition for resources, vigor, and humidity, which prevented the exact number of plants per area of experimental unit from being established.…”
Section: Experimental Designmentioning
confidence: 99%
See 1 more Smart Citation
“…The experimental design was completely randomized, with four replicates, and the treatments were composed of six soybean cultivars, i.e., NS 6909 IPRO, NA 5909 RG IPRO, DM 5958 RSF, Brasmax Elite IPRO, Brasmax Lança IPRO, and SYN 13561 IPRO, and ten densities of arrowleaf sida for each cultivar (0, 2, 3, 4, 9, 15, 16, 23, 22, and 58 plants m -2 ; 0, 2, 3, 3, 6, 6, 10, 11, 18, and 47 plants m -2 ; 0, 3, 4, 7, 8, 10, 11, 13, 15, and 24 plants m -2 ; 0, 1,4,6,12,18,19,31,44, and 50 plants m -2 ; 0, 4,5,6,9,13,17,20,20, and 47 plants m -2 ; and 0, 2, 3, 5, 9, 11, 15, 18, 29, and 30 plants m -2 ). As the arrowleaf sida weed originated from the soil seed bank, the establishment of densities varied with factors such as competition for resources, vigor, and humidity, which prevented the exact number of plants per area of experimental unit from being established.…”
Section: Experimental Designmentioning
confidence: 99%
“…In general, weeds compete with crops for environmental resources such as water, light, and nutrients and can cause high losses in soybean yield when left uncontrolled (13, 14, 17 22, 23, 32). Among the weeds that cause losses in soybean crops, Sida rhombifolia, the arrowleaf sida, stands out mainly because of its adaptability to low fertility, acidic soils, and high competitive ability (12). In addition, it has amphistomatic leaves with anomocytic stomata that can readily adapt to the environment where they grow and develop (11).…”
Section: Introductionmentioning
confidence: 99%