Armazenamento de ramas de mandioca sob capim elefante

Cassava is an important crop in southern coast of Santa Catarina State, Brazil. The crop establishmentis done by pieces of stem buried into the soil. During the winter, the stems must be sheltered to avoid dehydration caused by winds and direct solar radiation, and damages from frost. The present research proposes a new managementfor keeping cassava stems under a Cameroon grass wind shelter during the cold season, which showed to be efficient on keeping the good quality of the seed-stems for the next growing season.A mandioca é uma importante cultura no Litoral Sul de Santa Catarina. O plantio é feito por meio de pedaços de ramas, os quais são armazenados durante o inverno para evitar a desidratação causada pelo vento e pela radiação solar direta e os danos causados pela geada. Este trabalho propõe um método prático e simples para o armazenamento de ramas ao abrigo de plantas de capim-elefante, em local próximo à área de plantio, o qual mostrou-se eficiente na manutenção de manivas-semente de boa qualidade para o plantio

Métodos de monitoramento da sigatoka amarela da bananeira nas condições de clima subtropical no Sul do Brasil

 The adoption of monitoring systems to control the Sigatoka disease complex represents one of the most significant advances in banana production worldwide. In this paper four methodologies for evaluating Yellow Sigatoka (Biological Pre Warning - BPW, Stage of Evolution - SE, Infection Index - II, and Youngest Leaf Spotted - YLS) were compared under experimental conditions, and two methods were selected for commercial orchards in subtropical conditions. These monitoring systems weresubmitted to correlation (P<0.05 error) and statistic descriptive analysis. The disease monitoring systems presented different values depending on the methodology in the experimental phase. The highest absolute values were verified in the BPW (8450points), followed by SE (3213 points), II (36.3%), and YLS (9.7). The YLS presented a strong negative correlation with BPW (-80.7%), while the BPW and SE had a weak correlation (37%). In the commercial orchads BPW and YLS were compared, but the low frequency of the variable YLS limited its application for Sigatoka evaluation. After comparing the two systems in commercial orchards, we found that BPW should continue being the standard disease monitoring method on the coast of the state of Santa Catarina.A adoção de sistemas de monitoramento para o controle do complexo de manchas de sigatoka representa um dos avanços mais significativos na produção de banana no mundo. Neste trabalho foram comparadas quatro metodologias deavaliação da sigatoka-amarela (Pré-aviso Biológico - PAB, Estágio de Evolução - EE, Índice de Infecção - II e Primeira folha Manchada - PFM), em regime experimental no período de 2012-2014 e duas metodologias foram selecionadas para ensaios comerciais no período de 2016-2018 em condições subtropicais. Esses sistemas de monitoramento foram submetidos à correlação (P<0,05) e análise estatística descritiva. Os sistemas de monitoramento de doenças na fase experimental apresentaram valores diferentes dependendo da metodologia. Os maiores valores foram observados no PAB (8450 pontos), seguido de EE (3213 pontos), II (36,3%) e PFM (9,7). O PFM apresentou forte correlação negativa com o PAB (-80,7%), enquanto o PAB e EE tiveram uma correlação fraca (37%). Nos ensaios comerciais, a baixa frequência da variável PFM detectada nas plantas limitou sua aplicação para avaliação da sigatoka. Ao comparar os dois sistemas em pomares comerciais, verificou-se que a PAB deve continuar sendo o método padrão de monitoramento do mal-de-sigatoka no litoral catarinense

A fruticultura no Litoral Sul de Santa Catarina

Fruit production is an important agricultural activity on southern coast of Santa Catarina State,Brazil, where more than 11 thousand hectars are cultivated with fruit trees. The main fruits grown commercially are banana, passion fruit, grape, peach, plum, citrus and pineapple. The region has a suitable climate and soil type where tropical, subtropical and some temperate fruit species perform well. Farms are small and mostly use family labor. The potential for good economic returns to growers is high and at least equivalent to other alternate land uses. Sustainable production is dependent on a suitable growth environment, stable labor, a high demandfor the products and good prices for quality fruit. In this paper an analysis is given of the current status of local fruit production, and reasons are given for the variation in production levels and competitiveness. Comparisons are made with organic fruit production that has been practiced for a number of years by many local farmers.A fruticultura é uma importante atividade agrícola no Litoral Sul de Santa Catarina, ocupando cerca de 11 mil hectares de área cultivada. As principais frutas comercialmente cultivadas são a banana, o maracujá, a uva, o pêssego, a ameixa, os citros e o abacaxi. A região apresenta clima e solo apropriados ao cultivo de frutas tropicais e subtropicais, e até mesmo temperadas de baixa exigência em frio. Devido à característica regional ser de agricultura familiar em pequenas propriedades, credita-se à fruticultura um importante papel socioeconômicopor absorver intensiva mão-de-obra familiar e resultar em alto rendimento econômico por área. O presente estudo analisa aspectos atuais da fruticultura regional, seus problemas e suas potencialidades, além de ressaltarpeculiaridades de agricultura orgânica praticada há muitos anos nessa região

Exploring the association between attention-deficit/hyperactivity disorder and entrepreneurship

Objective: To investigate the association between attention-deficit/hyperactivity disorder (ADHD) symptoms and entrepreneurial profiles and the effects of entrepreneurial characteristics in individuals who screen positive for ADHD and self-identify as entrepreneurs. Methods: We sent 4,341 questionnaires by e-mail to applicants for a career development course for entrepreneurs. We used the propensity score covariate adjustment to balance differences between included and excluded individuals. ADHD symptoms were evaluated with the Adult ADHD Self-Report Scale. The Individual Entrepreneurial Orientation scale was used to assess the entrepreneurial profile of the participants. Impairment from ADHD symptoms was assessed with the Barkley Functional Impairment Scale. Results: Those who screened positive for ADHD had higher risk-taking scores (p-value = 0.016) and lower proactivity (p-value = 0.001) than those who screened negative. Higher inattention scores were related to lower proactivity (p-value o 0.001), while higher hyperactive symptom scores were related to a more generalized entrepreneurial profile (p-value = 0.033). Among ADHD-positive participants, entrepreneurial profile scores were not significantly associated with company profits or impairment. Conclusion: Inattention symptoms were related to less proactivity, whereas hyperactive symptoms were positively associated with a general entrepreneurial orientation. ADHD-positive individuals had a higher risk-taking profile, and these characteristics did not negatively impact their lives

Yellow Sigatoka monitoring methods in the subtropical climate of Southern Brazil

 The adoption of monitoring systems to control the Sigatoka disease complex represents one of the most significant advances in banana production worldwide. In this paper four methodologies for evaluating Yellow Sigatoka (Biological Pre Warning - BPW, Stage of Evolution - SE, Infection Index - II, and Youngest Leaf Spotted - YLS) were compared under experimental conditions, and two methods were selected for commercial orchards in subtropical conditions. These monitoring systems were submitted to correlation (P<0.05 error) and statistic descriptive analysis. The disease monitoring systems presented different values depending on the methodology in the experimental phase. The highest absolute values were verified in the BPW (8450 points), followed by SE (3213 points), II (36.3%), and YLS (9.7). The YLS presented a strong negative correlation with BPW (-80.7%), while the BPW and SE had a weak correlation (37%). In the commercial orchads BPW and YLS were compared, but the low frequency of the variable YLS limited its application for Sigatoka evaluation. After comparing the two systems in commercial orchards, we found that BPW should continue being the standard disease monitoring method on the coast of the state of Santa Catarina

Características agronômicas de 21 cultivares de banana em sistema orgânico

O presente trabalho aborda o desempenho agronômico de 21 cultivares de banana, com o objetivo de identificar genótipos mais adequados à produção orgânica nas condições ambientais do litoral sul de Santa Catarina