Desenvolvimento morfológico das gramas Esmeralda, São Carlos e Tifton 419

Kojoroski-Silva, Cleusa Maria; Scheffer-Basso, Simone Meredith; Carneiro, Cerci Maria; Guarienti, Mauricio

doi:10.1590/s1413-70542011000300005

Cited by 9 publications

(10 citation statements)

References 5 publications

(4 reference statements)

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“…The main species of grass used in our country for establishing gardens and sports fields belong to the genera Axonopus, Cynodon, Paspalum, Stenotaphrum and Zoysia (KOJOROSKI-SILVA et al, 2011). Even with the appreciation of landscape works, research papers dealing with grass species are still incipient and the available information is more concentrated in the management of fertilization (GODOY et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Leaf anatomy of emerald grass submitted to quantitative application of herbicides

Marques

Martins

Rodella

et al. 2016

SCA

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The aim of this work was to evaluate the selectivity of herbicides applied in post-emergence on Zoysia japonica Steud (Poaceae) and determine associations with the leaf anatomy of this grass. The experimental design was randomized blocks with four replications. The treatments were the application of the herbicides bentazon (720 g ha -1 ), nicosulfuron (50 g ha -1 ), halosulfuron (112.5 g ha -1 ), oxadiazon (875 g ha -1 ) and 2.4-D (698 g ha -1 ), plus a control treatment without herbicide application. Phytotoxicity was assessed every seven days after application (DAA) of the herbicides until the symptoms disappeared. Foliar anatomical analyses of the leaves in the collected grass were conducted until the 35 th DAA. The quantitative characters of the keel and wing region of the blade of Z. japonica were assessed, as well as the biometric characters, which were submitted to an analysis of variance F test, and the averages were compared by Tukey's test at a probability of 5%. The values of the anatomical characters of the foliar blade were tested by cluster analysis. The application of herbicides did not negatively influence the height of the plants but did reduce their dry mass. Toxic symptoms disappeared after 21 DAA, with the only symptoms of injury observed in plants treated with the herbicides oxadiazon and nicosulfuron. In addition, the cluster analysis indicated the formation of a unique discriminatory group. Thus, the results show that the herbicides applied to Z. japonica were selective for the species. Key words: Plant anatomy. Lawns. Selectivity. Zoysia japonica. ResumoObjetivou-se com esse trabalho avaliar a seletividade de herbicidas aplicados em pós-emergência sobre grama Esmeralda -Zoysia japonica Steud (Poaceae), em associação com estudos da anatomia foliar dessa grama. O delineamento experimental foi em blocos ao acaso, com quatro repetições. Os tratamentos constituíram da aplicação dos herbicidas: bentazon (720 g ha -1 ), nicosulfuron (50 g ha -1 ), halosulfuron (112,5 g ha -1 ), oxadiazon (875 g ha -1 ) e 2,4-D (698 g ha -1 ), além de um tratamento controle, sem aplicação de herbicidas. As avaliações de fitointoxicação foram realizadas a cada sete dias após a aplicação dos herbicidas (DAA) até o desaparecimento dos sintomas. Realizaram-se análises anatômicas foliares da grama coletando-se folhas no 35 o DAA. Avaliaram-se os caracteres quantitativos da região da quilha e da asa do limbo de Z. japonica, bem como os caracteres biométricos da grama, os quais foram

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Section: Introductionmentioning

confidence: 99%

Leaf anatomy of emerald grass submitted to quantitative application of herbicides

Marques

Martins

Rodella

et al. 2016

SCA

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“…The PL 01 accession, with a rhizomatous and stoloniferous growth habit, showed the greatest lateral growth expansion (8500.13 cm²), which was higher than the observed in ZJ 01 (4143.88 cm²) ( Figure 3B and Table 1). Kojoroski-Silva et al (2011) emphasizes that longer stolon length in the meristematic nodes emitted shoots at longer distances and had greater capacity of mobility and colonization of new areas compared to shorter stolon length; which was observed in the PL 01 accession. Pearson's positive correlation coefficients (r) observed between number of shoot (NS) and lateral growth expansion (E) (r = 0.877*) for the accessions of Paspalum, indicated that the greater the number of shoots, the greater the capacity of accession expansion (Table 2).…”

Section: Resultsmentioning

confidence: 74%

“…The parts were weighed to obtain the following variables: fresh leaf biomass (FLB in g); dry leaf biomass (DLB in g); fresh root biomass (FRB in g); dry root biomass (DRB in g); fresh biomass of rhizome and/or stolon (FRSB in g); dry biomass of rhizome and/or stolon (DBRS in g); and root length (RL in cm). The dry mass was obtained by drying the plant parts at 65 °C per 72 hours in a forced aeration oven, until obtaining constant weight (Haydock and Shaw, 1975).…”

Section: Methodsmentioning

confidence: 99%

“…Dense lawns are especially desired for landscaping, recreational and sporting purposes. High density is required not only to cover the terrain of sport lawns, but also to form a cushioning surface, which has the potential to reduce the impact of athletes' sports activities (Gobilik et al, 2013). Density, uniformity, texture, smoothness, soil coverage and bonding are functional characteristics and aesthetic value to be analyzed for the evaluation of the quality of a turfgrass by researchers and breeders (Glab et al, 2020).…”

Section: Development Of Paspalum Accession Plugs For Turfgrass Establmentioning

confidence: 99%

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Development of Paspalum accession plugs for turfgrass establishment

et al. 2020

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The selection of a genotype for lawn use must consider the plant survival rate and its soil covering ability, which is directly influenced by the growth of stolons and rhizomes. This study aimed to evaluate the growth and development of Paspalum accession plugs for turfgrass establishment. Plugs of six prostrate growth accessions of Paspalum lepton (PL 01), P. notatum (from PN 01 to PN 06) and Zoysia japonica (ZJ 01), which was used as the control treatment, were planted adding up to 7 treatments. At 63 days after planting, the survival rate, the number of shoots, the expansion capacity, plant height and soil coverage rate were evaluated. Moreover, at 72 days after planting, fresh and dry leaf, root, rhizome and/or stolon biomass, as well as root length were evaluated. Plugs of PL 01 presented the highest values regarding the number of shoots, the expansion capacity, soil coverage and the development of the root system with the largest biomass production. PL 01 and PN 05 along with ZJ 01 presented a high soil coverage rate and all the P. notatum (PN) accessions together with ZJ 01 maintained a lower plant height, but with a length root system higher than the control treatment ZJ 01. The P. lepton (PL 01) and P. notatum (PN 05) accessions can be recommended for turfgrass establishment using plug propagation methods.

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“…Species A. compressus has good tolerance to colder weather and little resistance to drought. Its origin is reported in South America, and it may be a native in southern Brazil (Lorenzi and Souza, 2001;Kojoroski-Silva et al, 2011). doi: 10.1590/S0100-83582016340400009 In agriculture, when a plant is in unwanted place and time it is considered invasive and/ or a weed, as it negatively interferes in activities of economic interest.…”

Section: Introductionmentioning

confidence: 99%

Phytosociological Survey of Weeds in Carpet Grass in Distinct Periods of the Year

et al. 2016

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-Lawn with grass classified as Axonopus compressus is very common in BrazilSouthern region, where it normally presents an adequate low temperature tolerance and a high diversity of weed infestation. This work has aimed to conduct a phytosociological survey of weeds in lawn consisting of Axonopus compressus from CEDETEG/UNICENTRO University campus located in the Brazilian municipality of Guarapuava, in the state of Paraná, in different periods of 2013. One hundred eighty 0.50 x 0.50 m samples were collected in four months, from which parameters frequency, density, abundance, relative frequency, relative density, relative abundance and importance value index were calculated. In general, 24, 7, 17 and 14 weed species were identified, distributed in 23, 3, 8 and 6 families, respectively, in April, June, October and December. The largest number of weed species was identified in Asteraceae, Fabaceae and Cyperaceae families. The ones classified as the most important and with occurrence over all periods of year were Trifolium repens (Fabaceae), Soliva pterosperma (Asteraceae) and Oxalis corniculata (Oxalidaceae). Keywords: Axonopus compressus, lawn, identification. RESUMO -Gramados com a grama denominada sempre-verde (Axonopus

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Desenvolvimento morfológico das gramas Esmeralda, São Carlos e Tifton 419

Cited by 9 publications

References 5 publications

Leaf anatomy of emerald grass submitted to quantitative application of herbicides

Leaf anatomy of emerald grass submitted to quantitative application of herbicides

Development of Paspalum accession plugs for turfgrass establishment

Phytosociological Survey of Weeds in Carpet Grass in Distinct Periods of the Year

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