6 documents found, page 1 of 1
Biomass and leaf acclimation to ultraviolet solar radiation in juvenile plants ...
Bernardo, Wallace de Paula; Rakocevic, Miroslava; Santos, Anne Reis; Ruas, Katherine Fraga; Baroni, Danilo Força; Abraham, Ana Cabrera; Pireda, SauloDespite the negative impacts of increased ultraviolet radiation intensity on plants, these organisms continue to grow and produce under the increased environmental UV levels. We hypothesized that ambient UV intensity can generate acclimations in plant growth, leaf morphology, and photochemical functioning in modern genotypes of Coffea arabica and C. canephora. Coffee plants were cultivated for ca. six months in...
Morphological and physiological responses of Cedrela Fissilis Vellozo (Meliacea...
Santos, Débora Leonardo dos; Rakocevic, Miroslava; Takaki, Massanori [UNESP]; Ribaski, JorgeSubmitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:40:50Z No. of bitstreams: 1 S1516-89132006000100020.pdf: 142815 bytes, checksum: 3ad0b32a2daf426e914a60c427a0a1f5 (MD5); Made available in DSpace on 2013-08-22T18:40:50Z (GMT). No. of bitstreams: 1 S1516-89132006000100020.pdf: 142815 bytes, checksum: 3ad0b32a2daf426e914a60c427a0a1f5 (MD5) Previous issue date: 2006-01-01; Made availabl...
Ecophysiological and Productive Properties as Tool for Breeding of Maté (Ilex p...
Rakocevic, Miroslava; Sturion, José Alfredo; Medrado, Moacir José Sales; Lavoranti, Osmir José; Mosele, Sérgio Henrique; Valduga, Alice TerezaThe aims of this study were to estimate the genetic parameters for 59 half-sib progenies of maté under runing for formation, and to evaluate the ecophysiological properties for four progenies (P15, P18, P41 e 47) and two controls (P61 and P62), components of one maté breeding experiment combining rovenances and progenies, established in Erechim, RS. The ecophysiological properties (stomatal onductance (gs) -...
Morphophysiological characteristics of (Coffea arabica L.) in different arrange...
Rakocevic, Miroslava; Androcioli Filho, Armando3D vegetative structural and functional models are useful in simulations of ecophysiological and biophysical processes. The main objective of this study was to model a 3D Coffea arabica L. structure. The specific aim was to use 3D mock-ups for analysis of vertical leaf and berry distribution and light interception in coffee crops cultivated in different planting densities and arrangements. The mock-ups were bui...
Leaf gas exchange differences between males and females of yerba-mate
Rakocevic, Miroslava; Medrado, Moacir José Sales; Lavoranti, Osmir JoséA preliminary study was developed on leaf gas exchange properties of males and females in yerbamate (Ilex paraguariensis St. Hil.), planted in open growth conditions. The photosynthesic photon flux density (PPFD) on leaf level, stomatal conductance (gs), net photosynthesis (A), transpiration (E), and leaf temperature (Tl) was measured during the biennial production period: in the summer during the fruit ripenin...
Quality of yerba-mate leaves originating from male and female plants
Rakocevic, Miroslava; Medrado, Moacir José Sales; Lavoranti, Osmir José; Valduga, Alice TeresaThe aim of this study was to assess the taste of beverage prepared from yerba-mate (Ilex paraguariensis) leaves, originated from male and female plants, by taking into account leaf gas exchange and the content of macro-and-trace-elements. Ecophysiological, chemical and sensorial properties were evaluated in one of the sprouting phases and in two fruit ripening phases. Male and female plants did not differ in fr...