|
|
|
|
|
| REIS,L.A.C.; CARVALHO,F.P.; FRANÇA,A.C.; FRANCINO,D.M.T.; PINTO,N.A.V.D.; FREITAS,A.F.. |
| ABSTRACT: The most widely used herbicide in coffee crop is glyphosate, it inhibits the biosynthesis of secondary metabolites, responsible for structures and substances of plant defense. This work aimed to evaluate the morphoanatomy, total phenols, flavonoids and caffeine in leaves of Arabica coffee submitted to different sub-doses of glyphosate. The treatments were combinations of three coffee cultivars (MGS Travessia, Oeiras MG 6851 and Catuaí IAC 144) and five sub-doses of glyphosate (0.0, 57.6, 115.2, 230.4 and 460.8 g a.e. ha-1). The total thickness of the leaf blade, thickness of adaxial and abaxial epidermis, palisade and spongy parenchyma, in addition to the total phenol, total flavonoids and caffeine were evaluated 30 days after spraying. Catuaí... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbicide drift; Coffea arabica; Epidermis; Parenchyma; Caffeine; Flavonoid. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100336 |
| |
|
|
| ALECRIM,A.O.; FRANÇA,A.C.; SANTOS,E.A.; MOREIRA,S.D.; LEAL,F.D.S.; TIBÃES,E.S.R.. |
| ABSTRACT The purpose of this paper was to evaluate the effects of the interference by Urochloa brizantha on coffee seedlings inoculated with arbuscular mycorrhizal fungi. A randomized block design and a 4 x 2 layout was used, where factor A was constituted by seedlings inoculated with Rhizophagus clarus, Claroideoglomus etunicatum and Dentiscutata heterogama, as well as some that were not inoculated, and factor B, constituted by plants in competition or alone. The sowing was conducted on washed sand to produce the coffee seedlings, which, during the matchstick stage, were transplanted into polyethylene bags, and inoculated when showing six pairs of leafs. Then, they were transplanted into pots where they were subjected to interference from two plants of U.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Rhizophagus clarus; Claroideoglomus etunicatum; Dentiscutata heterogama; Urochloa brizantha. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400681 |
| |
|
|
|
