Results 31 to 40 of about 152,702 (224)
The objective of this work was to evaluate the effect of organic and conventional coffee crops on biomass, population density and diversity of earthworms, in Lerroville, district of Londrina County, Paraná state, Brazil.
Marie Luise Carolina Bartz +6 more
doaj +1 more source
Different contexts, same concerns? Wood gap and forest restoration in Indonesia and Cameroon [PDF]
The gap between demand and supply of sustainable wood, in countries rich forest with a poor governance, is one of the major causes of forest degradation.
Awono, Abdon +4 more
core
Growth of sugar cane varieties under salinity
Large salty areas in the Brazilian semi-arid region have limited farming in Northeastern Brazil. One example is the sugar cane cultivation, which reinforces the need of selecting varieties that are more tolerant to salinity.
Welson Lima Simões +4 more
doaj +1 more source
Coppice potential of 16 different species of Eucalyptus after an eight-year rotation [PDF]
The adoption of coppice is a commonly used management in different regions of Brazil for plantations of Eucalyptus, which requires less investments. However, there are variations in the ability of each genotype to emit sprouts, and higher yields can be ...
Campoe, Otávio +3 more
core
Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy [PDF]
Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied in terms of abundance ...
Capitanio, Fabiana Lia +3 more
core +4 more sources
In this study, we demonstrate that urbanization intensity reduces the abundance of stem galls on Turnera subulata, while increased vegetation cover and plant vigor promote higher occurrence and abundance. These findings highlight the importance of native vegetation in sustaining specialized insect‐plant interactions and provide evidence that plant ...
Luziene Seixas +4 more
wiley +1 more source
No cultivo de plantas medicinais as condições de salinidade e de luz podem exercer influência no rendimento e na qualidade final da produção de biomassa. O objetivo deste trabalho foi avaliar o efeito de diferentes luminosidades e níveis de salinidade na
M.A.C. Freitas +6 more
doaj +3 more sources
QUANTIFICAÇÃO DA BIOMASSA DE UM POVOAMENTO DE Acacia mearnsii De Wild. NA REGIÃO SUL DO BRASIL [PDF]
O presente estudo, em povoamento de Acácia-negra, aos 8 anos de idade, na Serra do Sudeste, no município de Minas do Leão, RS, teve o objetivo de quantificar a biomassa total do povoamento e a sua distribuição em cada componente da biomassa das árvores ...
Hamilton Luiz Munari Vogel +2 more
doaj
The present study aimed to evaluate the seasonal variation of microphytobenthic biomass and its primary production in the intertidal zone in Santos Estuary (São Paulo, Brazil). This estuary is on the tropical region and it is regarded as a polluted area.
Eduinetty Ceci Pereira Moreira de Sousa +2 more
doaj +1 more source
Fenologia e produção de massa seca e de grãos em cultivares de milheto-pérola [PDF]
O objetivo deste trabalho foi avaliar a fenologia e produtividade de duas cultivares brasileiras de milheto-pérola, BN 2 e BRS 1501, comparadas com três cultivares africanas, Souna III, Guerguera e HKP.
José Geraldo +3 more
doaj +1 more source

