Results 41 to 50 of about 16,885 (165)

IMPLANTAÇÃO DE POVOAMENTOS DE Dodonaea viscosa (L.) Jacq. COM MUDAS E SEMEADURA DIRETA [PDF]

open access: yesCiência Florestal, 1999
No presente trabalho foi estudada a emergência e sobrevivência à campo da Dodonaea viscosa (L.) Jacq. O delineamento estatístico utilizado foi o de blocos ao acaso com 3 repetições e 2 tratamentos, definidos como plantio com mudas e semeadura direta à ...
Paulo Sérgio Pigatto Schneider   +2 more
doaj  

Landscape configuration and soil properties shape ant‐mediated seed dispersal in tropical dry forest agricultural landscapes

open access: yesJournal of Animal Ecology, Volume 95, Issue 8, Page 1476-1487, August 2026.
We show that ant‐mediated seed dispersal components respond differently to local soil conditions and landscape structure in Caatinga agricultural mosaics. Low‐intensity rainfed croplands maintained or enhanced seed removal compared to natural remnants, highlighting how small‐scale agriculture can sustain key ecological processes in human‐modified dry ...
Jaiane Maria Silva   +5 more
wiley   +1 more source

Efeitos da cultura da cevada e de períodos de controle sobre o crescimento e produção de sementes de Raphanus sativus L. Effects of the culture of the Barley and of periods of control on the seed production and growth of Raphanus sativus L.

open access: yesPlanta Daninha, 1997
Este experimento teve por objetivo avaliar os efeitos da cultura da cevada e de períodos de controle das plantas daninhas sobre o crescimento e produção de sementes de Raphanus sativus.
José Roberto Pinto de Souza   +1 more
doaj   +1 more source

Early Discrimination of Maternal Haploid and Diploid Maize (Zea mays L.) Seedlings Using Morphological Traits and Random Forest Classifier

open access: yesPlant Breeding, Volume 145, Issue 4, Page 822-833, August 2026.
ABSTRACT Doubled haploid (DH) technology has been widely adopted in maize (Zea mays L.) breeding programs due to its ability to reduce breeding cycle time and optimize costs. Early ploidy identification is essential for maximizing the efficiency of DH production, particularly prior to chromosome doubling.
Mariana Martins Marcondes   +7 more
wiley   +1 more source

A global review of mistletoe frugivory and seed dispersal: The plant perspective

open access: yesPlant Biology, Volume 28, Issue 5, Page 1303-1314, August 2026.
We reviewed studies on mistletoe frugivory and seed dispersal worldwide. Although mistletoes are relatively well studied, major taxonomic, geographic, and methodological gaps remain. We conclude that modern technologies offer new opportunities to address long‐standing but still poorly explored questions about these interactions.
R. F. Fadini   +3 more
wiley   +1 more source

Padronização do teste de tetrazólio para sementes de Schizolobium parahyba (Vell.) Blake [PDF]

open access: yes, 2014
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Agronomia.A espécie arbórea Schizolobium parahyba (Vell.) Blake pertencente à família Fabaceae-Caesalpinioideae é uma árvore nativa do Brasil, com múltiplos ...
Pollak Júnior, Moisés
core  

Fruit ontogenesis in Clusia parviflora Humb. & Bonpl. ex Willd. (Clusiaceae) Ontogênese do fruto de Clusia parviflora Humb. & Bonpl. ex Willd. (Clusiaceae)

open access: yesActa Botânica Brasílica, 2009
Aspects of the morpho-anatomy of developing fruits and seeds of Clusia parviflora are presented and discussed as a continuation of the study of these organs in Clusiaceae.
Káthia Socorro Mathias Mourão   +1 more
doaj   +1 more source

By‐product of heparin extraction as a sustainable alternative to enhance the use of nitrogen in agriculture

open access: yesEnvironmental Progress &Sustainable Energy, Volume 45, Issue 4, July/August 2026.
Abstract This study evaluates the potential of a new organic fertilizer derived from porcine intestinal mucosa (designated BHE), a by‐product of the heparin extraction process, as a sustainable nitrogen (N) source for agriculture. The work was conducted in two stages: (i) chemical and spectroscopic characterization of BHE compared with poultry litter ...
Aline Zanquetti   +3 more
wiley   +1 more source

Fatty acids composition in seeds of the South American glasswort Sarcocornia ambigua

open access: yesAnais da Academia Brasileira de Ciências, 2012
Sarcocornia ambigua (Michx.) M.A. Alonso & M.B. Crespo is the most widely distributed species of the perennial genus of glasswort in South America, and it shows great biotechnological potential as a salt-water irrigated crop. Qualitative and quantitative
Marcelo G.M. D'oca   +3 more
doaj  

Mangostanzeiro: botânica, propagação, cultivo e utilização

open access: yesRevista Brasileira de Fruticultura, 2014
O mangostanzeiro (Garcinia mangostana L.) é uma espécie frutífera nativa do sudeste da Ásia e foi introduzida no Brasil há mais de 100 anos. No entanto, os primeiros pomares somente foram implantados na década de 1980.
José Edmar Urano de Carvalho
doaj   +1 more source

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