Results: 20

Allelopathy of Ricinus communis and light spectrum variation decrease emergence and growth of Cyperus rotundus

Biosci. j. (Online); 39 (), 2023
Weeds negatively influence agricultural production. However, those losses depend on weed specie, its time of emergence, and period of interference on agricultural crops. Synthetic herbicides are commonly used to control these plants species; however, they may cause damage to the environment, human beings...

A castor oil plant (Ricinus communis)-derived implant improves the biomechanical properties of noncritical bone defects

Acta cir. bras; 36 (2), 2021
ABSTRACT Purpose The biomechanical properties of the polyurethanes implant material derived from castor oil plant (Ricinus communis) were evaluated in a noncritical bone defect model in rat tibia. Methods After three weeks of the implant application, the tibias were tested by means of the biomechanical...

Castor bean cake in top-dressing application as a source of nitrogen on the production and quality of zucchini organic seeds

Biosci. j. (Online); 36 (Supplement1), 2020
Studies in vegetables show that fertilization influences seed production positively, however, when the quality of the seeds is analyzed, the results are mostly inconsistent. The objective of this study was to evaluate the effect of castor bean cake (CBC) dose splitting in top-dressing application on the ...

Destoxificação e perfil nutricional da torta de mamona destoxificada por diferentes soluções alcalinas

Objetivou-se avaliar a destoxificação da torta de mamona bruta (TMB), por meio de dois produtos alcalinos em diferentes concentrações, e seus efeitos sobre a composição química, a degradabilidade in situ da MS e o fracionamento de proteínas. Utilizou-se o hidróxido de cálcio [Ca(OH)2] e o hidr...

Metabolic stress and reproductive features in post-partum goats supplemented for a long period with detoxified castor meal as the source of dietary nitrogen

This study evaluated the effect of detoxified castor meal on the reproductive performance, metabolic stress, milk production, and kid development in peripartum goats. The diet of the animals were with (DCM, n= 20) or without (WDCM, n= 21) detoxified castor meal during the entire gestation and until weani...

Castor Bean Cake Protein-based Biodegradable Films: Gallic Acid Effect

Abstract: The objective of this work was to evaluate the effect of gallic acid (GA) concentration on some physical properties and biodegradability of films produced with proteins extracted from the castor bean cake. The films, prepared by the casting technique, showed homogeneous and brownish appearance....

Crop residues activity against the free-living stages of small ruminant nematodes

Abstract The nematicidal effect of different organic materials was evaluated in order to develop a non-chemical alternative soil treatment for control of the free-living stages of small ruminant gastrointestinal nematodes. The selected organic materials were residues from the juice industry of acerola, c...

Antibiofilm activity of an experimental ricinus communis dentifrice on soft denture liners

Braz. dent. j; 30 (3), 2019
Abstract The disadvantage of liners materials is the difficulty of biofilm control. It was compared an experimental dentifrice contained Ricinus communis, with commercials dentifrices as antibiofilm activity against microorganisms on denture liner. Six hundred specimens were distributed in 5 groups (n=18...

Direct in vitro regeneration of castor bean plants (Ricinus communis) using epicotyls

Biosci. j. (Online); 35 (2), 2019
A regeneration protocol for castor bean plant (Ricinus communis) was successfully developed using epicotyl sections obtained from in vitro seedlings. The maximum number of induced shoots (4.3 shoots/explant) and highest shoots frequency (75,56%) was obtained in WPM medium supplemen...

Biology of Corythucha gossypii Fabricius, 1794 (Hemiptera: Tingidae) in Ricinus communis at different temperatures and thermal requirements

Braz. j. biol; 79 (2), 2019
Abstract We studied the biology of Corythucha gossypii in Ricinus communis under different temperatures in climatic chambers adjusted at 20, 23, 25, and 28 °C, 60 ± 10% relative humidity, and a 12-h photoperiod. The development period and viability of eggs, the development period and survival rate of ...