Results 21 to 30 of about 1,958 (255)

The Chemical Environment at Maturation Stage in Pinus spp. Somatic Embryogenesis: Implications in the Polyamine Profile of Somatic Embryos and Morphological Characteristics of the Developed Plantlets

open access: yesFrontiers in Plant Science, 2021
Changes in the chemical environment at the maturation stage in Pinus spp. somatic embryogenesis will be a determinant factor in the conversion of somatic embryos to plantlets. Furthermore, the study of biochemical and morphological aspects of the somatic
Antonia Maiara Marques do Nascimento   +7 more
doaj   +1 more source

Aplicação de produtos biológicos estimulantes no desenvolvimento vegetal em hortaliças

open access: yesResearch, Society and Development, 2021
O uso de produtos estimulantes na produção de olerícolas é de grande importância para um melhor estabelecimento de plântulas no campo, fator diretamente relacionado com a germinação das sementes. O objetivo deste estudo consistiu em verificar os efeitos de diferentes produtos biológicos estimulantes do desenvolvimento vegetal, como Ascophylum nodosum ...
Joaquim Souto Silva Junior   +1 more
openaire   +2 more sources

Morfoanatomia e ontogenia de plântulas de Bactris maraja durante o desenvolvimento inicial

open access: yesPesquisa Florestal Brasileira, 2020
Bactris maraja é uma palmeira típica de florestas de terra firme e várzea da Amazônia. O conhecimento sobre a morfologia da espécie pode auxiliar na correta identificação em campo e na interpretação da germinação em laboratório.
Joelma Keith Rodrigues   +2 more
doaj   +1 more source

Genome-wide association study for resistance to Pseudomonas syringae pv. garcae in Coffea arabica

open access: yesFrontiers in Plant Science, 2022
Bacteria halo blight (BHB), a coffee plant disease caused by Pseudomonas syringae pv. garcae, has been gaining importance in producing mountain regions and mild temperatures areas as well as in coffee nurseries.
Caroline Ariyoshi   +18 more
doaj   +1 more source

Sink Status and Photosynthetic Rate of the Leaflet Galls Induced by Bystracoccus mataybae (Eriococcidae) on Matayba guianensis (Sapindaceae)

open access: yesFrontiers in Plant Science, 2017
The galling insect Bystracoccus mataybae (Eriococcidae) induces green and intralaminar galls on leaflets of Matayba guianensis (Sapindaceae), and promotes a high oxidative stress in host plant tissues.
Denis C. Oliveira   +4 more
doaj   +1 more source

Duração do ciclo de desenvolvimento de cultivares de arroz em função da emissão de folhas no colmo principal [PDF]

open access: yesCiência Rural, 2006
Uma das metas do melhoramento genético de arroz no Sul do Brasil ao longo dos últimos 40 anos foi modificar a duração do ciclo de desenvolvimento das cultivares.
Nereu Augusto Streck   +4 more
doaj   +1 more source

Micropropagation of Guadua chacoensis (Rojas) Londoño & P. M. Peterson

open access: yesPesquisa Agropecuária Tropical, 2019
The bamboo productive chain is still incipient in Brazil, and the low supply of plantlets due to low-efficient conventional propagation methods presents a significant bottleneck to its development.
Thiago Sanches Ornellas   +4 more
doaj   +1 more source

Plant Small RNA World Growing Bigger: tRNA-Derived Fragments, Longstanding Players in Regulatory Processes

open access: yesFrontiers in Molecular Biosciences, 2021
In the past 2 decades, the discovery of a new class of small RNAs, known as tRNA-derived fragments (tRFs), shed light on a new layer of regulation implicated in many biological processes.
Cristiane S. Alves, Fabio T. S. Nogueira
doaj   +1 more source

Preliminary placement and new records of an overlooked Amazonian tree, Christiana mennegae (Malvaceae) [PDF]

open access: yesPeerJ, 2021
Christiana mennegae is a phylogenetically enigmatic taxon and represents a case in point of a species whose presence escaped the radar of the Amazon lists and the Brazilian Flora project.
Rafael G. Barbosa-Silva   +5 more
doaj   +2 more sources

Effects of a commercial biocide, kasugamycin and consistency of the culture medium on the in vitro establishment of bamboo

open access: yesPesquisa Agropecuária Tropical, 2019
The contamination by microorganisms and oxidation of explants in the in vitro establishment of bamboo are recurrent problems for its micropropagation.
Daniela Werner Ribeiro dos Santos   +3 more
doaj   +1 more source

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