Results: 65

Assessing the growth of Arctic charr (Salvelinus alpinus) (Linnaeus, 1758) in four salinities, under experimental conditions

Braz. j. biol; 80 (4), 2020
Abstract Studies in Salvelinus alpinus, Arctic charr, indicate that it has a low capacity to hyposmorregulatory or adaption to sea in winter periods in Arctic waters. The investigation finds to determinate the rank optimum of salinity to can cultivate this species at Chile. The weight adequate was determ...

Distribución de temperatura y salinidad en campañas oceanográficas recientes en el Pacífico Tropical Oriental de Costa Rica

Rev. biol. trop; 68 (supl 2), 2020
Introducción: Para Costa Rica, los estudios realizados en el Pacífico Tropical Este o PTE son importantes ya que se relacionan con el Corredor Marino del Pacífico Este Tropical, el cual es un esfuerzo de conservación multinacional. El presente estudio describe los parámetros físicos de temperatura ...

Germination of chia seeds submitted to saline stress

Braz. j. biol; 80 (2), 2020
Abstract Salinity, of both soil and water, is one of the main causes of crop yield decline. Within this context, the objective of this study was to evaluate the influence of different salts on the germination of chia seeds. The experiment was conducted in a BOD chamber at a constant temperature of 20 °C...

Salt stress on physiology, biometry and fruit quality of grafted Passiflora edulis

Biosci. j. (Online); 36 (3), 2020
The production of grafted passion fruit is an alternative for plant adaptation to saline environments. The objective of this study was to evaluate the effect of salt stress on physiology, biometry and fruit quality of P. edulis grafted on Passiflora spp. The experiment was conducted in completely randomi...

Comparative molecular studies of halophilic bacteria from saline water and soil in the Saudi environment

Biosci. j. (Online); 36 (3), 2020
Halophilic bacteria are microorganisms that grow optimally in the presence of the very high concentration of sodium chloride. Halophiles are vital sources of various enzymes including hydrolases, which are very stable and catalytically highly efficient at high salt concentration and other extreme conditi...

Development of a new protocol for freeze-drying preservation of Pseudoalteromonas nigrifaciens and its protective effect on other marine bacteria

Background: Freeze-drying is known as one of the best methods to preserve bacterial strains. Protectant is the key factor affecting the survival rate of freeze-dried strains. In addition, salinity, bacterial suspension concentration, drying time, and other factors can also affect the survival rate of str...

Acute exposure to hyperosmotic conditions reduces sperm activation by urine in the yellowtail tetra Astyanax altiparanae, a freshwater teleost fish

In freshwater fish with external fertilization, sperm sampling can be contaminated with urine, which triggers motility and gives rise to decreased fertilization success. The maintenance of freshwater fish in hyperosmotic conditions may reduce urine production and improve sperm quality. Thus, the aim of t...

Effects of irrigation water salinity and salicylic acid on germination and vigor of Mesosphaerum suaveolens (L. ) Kuntze

Semina ciênc. agrar; 41 (5), 2020
Salinity is one of the factors that negatively impact plant growth and productivity; therefore, it is necessary to seek solutions that help mitigate the degenerative action of saline stress on crops. The objective of this study was to evaluate the effects of salicylic acid (SA) on the germination and vig...

Effect of Salinity Stress on Various Growth and Physiological Attributes of Two Contrasting Maize Genotypes

Abstract The response of two local maize (Zea mays L.) genotypes designated as Sahwal-2002 (salt-tolerant) and Sadaf (salt-sensitive) to salt stress was investigated under controlled growth conditions. The role of phenylalanine and seed priming under salt stress in maize with different morphological para...

Induced in vitro adaptation for salt tolerance in date palm (Phoenix dactylifera L) cultivar Khalas

Biol. Res; 53 (), 2020
BACKGROUND: Soil salinity causes huge economic losses to agriculture productivity in arid and semiarid areas world-wide. The affected plants face disturbances in osmotic adjustment, nutrient transport, ionic toxicity and reduced photosynthesis. Conventional breeding approaches produce little success in c...