In order to evaluate the physical-chemical characteristics of nineteen sweet cassava varieties (Milagrosa, Paraguai, Maragogipe, Saracura, Amarela Viçosa, IAC Guaxupé, Manteiga, Aipim Furadinho, Calombo, BRS Dourada, Rosa, Manteigão, Pão da China, BRS Gema de Ovo, Colombo, BRS Eucalipto, Cacau Branca and BRS Rosada) this study was conducted at the State University of Southwest Bahia, in Vitoria da Conquista -BA. It was evaluated the pH, soluble solids, acidity, texture, cooking time, starch, amylose, amylopectin content, protein content and ash content of roots harvested at 12 months of age. We used a completely randomized design, with 3 repetitions. The data were submitted to analysis of variance and subsequently the treatment means were grouped by the Scott-Knott procedure, a 5% probability. There were differences between all the features, except for the ash content. Observed pH near neutral results in all varieties, with the highest values found in varieties Calombo and BRS Gema de Ovo. The Milagrosa variety had a higher percentage of soluble solids and higher texture. The IAC 576-70 stood out as the texture, the cooking time, the starch content and protein content. The highest percentage of amylose and amylopectin the lowest percentage was observed in the BRS Dourada.Key words: starch; baking; Manihot esculenta Crantz; post-harvest; genetic variability Características físico-químicas de variedades de mandioca de mesa RESUMO Com objetivo de avaliar características físico-químicas de dezenove variedades de mandioca de mesa (Milagrosa, Paraguai, Maragogipe, IAC 576-70, Saracura, Amarela Viçosa, IAC Guaxupé, Manteiga, Aipim Furadinho, Calombo, BRS Dourada, Rosa, Manteigão, Pão da China, BRS Gema de Ovo, Colombo, BRS Eucalipto, Cacau Branca e BRS Rosada) foi realizado este estudo na Universidade Estadual do Sudoeste da Bahia, em Vitória da Conquista -BA. Avaliou-se o pH, sólidos solúveis, acidez titulável, textura, tempo de cozimento, teor de amido, teor de amilose, teor de amilopectina, teor de proteína e teor de cinzas de raízes colhidas aos 12 meses de idade. Utilizou-se o delineamento inteiramente casualizado, com 3 repetições. Os dados foram submetidos à análise de variância e, posteriormente, as médias dos tratamentos foram agrupadas pelo procedimento de Scott-Knott, a 5% de probabilidade. Houve diferença entre todas as características, à exceção do teor de cinzas. Observou-se resultados de pH próximos a neutralidade em todas as variedades, sendo os maiores valores encontrados nas variedades Calombo e BRS Gema de Ovo. A variedade Milagrosa apresentou maior porcentagem de sólidos solúveis e maior textura. A variedade IAC 576-70 destacou-se quanto à textura, tempo de cozimento, teor de amido e teor de proteína bruta. A maior porcentagem de amilose e a menor de amilopectina foram observadas na BRS Dourada.
In Brazil, the state of Bahia is one of the largest pinecone (Annona squamosa L.) growers; nevertheless, fruit borer (Cerconota anonella L.) presence limits production. This research aimed to test the efficiency of lambda-cyhalothrin in controlling fruit borer using different spray volumes; additionally, this research tested qualitative and quantitative operational aspects. Trials were carried out in pinecone orchards in Caraíbas-BA, Brazil. Pesticide efficiency was tested by a randomized block experiment with six treatments and five replications. Treatments consisted of lambda-cyhalothrin application (1.5 g a.i. 100 L -1 water) with a surfactant (0.03% v v ) and a surfactant at 0.03% (v v -1 ), using the same spray volumes as the first experiment. Qualitative assessments were performed on water-sensitive paper cards and were quantified through tracer deposit levels on leaves. Spray volumes between 100 and 382 L ha -1 with lambda-cyhalothrin were efficient to control Cerconota anonella in the pinecone crop, providing good quality application.Index terms: Annona squamosa; Cerconota anonella; tracer; spray application technology. RESUMOO Estado da Bahia é o maior produtor nacional de pinha (Annona squamosa L.), porém a ocorrência da broca-do-fruto, Cerconota anonella L., limita e compromete a produção. O trabalho teve por objetivos avaliar a eficiência do inseticida lambda-cialotrina no controle da broca-do-fruto com diferentes volumes de calda, bem como aspectos qualitativos e quantitativos da pulverização. Os estudos foram conduzidos em pomar comercial de pinha localizado em Caraíbas, BA. A eficiência do inseticida foi avaliada em experimento conduzido em blocos ao acaso com seis tratamentos e cinco repetições. Os tratamentos consistiram na pulverização do inseticida lambda-cialotrina (1,5 g de i.a.100 L -1 de água), com adição de espalhante adesivo a 0,03% v v -1 nos volumes de calda de 100, 200, 268, 382 e 488 L ha -1 e testemunha (sem pulverização). A infestação da praga foi avaliada por meio da contagem do número de frutos com sintomas de ataque para posterior cálculo da porcentagem de frutos brocados. Na avaliação da pulverização, o experimento constou de cinco tratamentos e cinco repetições. Os tratamentos consistiram de solução aquosa contendo o marcador Azul Brilhante a 0,15% (p v -1 ) e espalhante adesivo a 0,03% (v v -1 ) nos mesmos volumes de calda utilizados no primeiro experimento. As avaliações qualitativas foram em papel hidrossensível e a quantitativa pelos níveis dos depósitos do marcador nas folhas. O inseticida lambda-cialotrina, aplicado em volumes entre 100 e 382 L ha -1 , é eficiente para controle de Cerconota anonella em pinha, proporcionando boa qualidade das pulverizações.Termos para indexação: Annona squamosa; Cerconota anonella; marcador: tecnologia de aplicação.
O presente trabalho foi conduzido com o objetivo de avaliar e selecionar genótipos de aveia forrageira adaptados às condições edafoclimáticas de Vitória da Conquista, município localizado em região tropical de altitude no estado da Bahia. The present study was conducted with the objective of evaluating and selecting forage oat genotypes adapted to the edaphoclimatic conditions of Vitória da Conquista, municipality located in a tropical region of altitude in the state of Bahia. It was used the experimental design in randomized blocks, with three replicates and nine treatments, constituted by the genotypes São Carlos, UPF 86081, FAPA 2, FAPA 43, UPF 15, IAPAR 61, UPF 19, IPR 126, UFRGS 16. The seeding was performed manually, after plowing and soil harrowing, in May 2006. The nitrogen fertilization varied from 80 to 120 kg ha -1 of N, divided in applications at the time of planting, 20 days after planting and after each cut. In periods of low water availability was used additional irrigation via sprinkling. The first cut was performed at the beginning of rubber and the following cuts, when the plants reached height between 35 and 40 cm. Were evaluated the number of days from emergence to flowering and the number of days of emergence to maturing of the grains to determine the growth cycle of the genotypes. Throughout the essay, were evaluated the green mass production and dry mass and the bromatological composition, determining the levels of crude protein, neutral detergent fiber, acid detergent fiber and in vitro digestibility of the dry matter. The genotypes UPF 86081, UPF 19 and UFRGS 16 presented potential of use in the region, in the winter period, with higher productivity of green biomass, while the genotypes FAPA 43, FAPA 2, IPR 126, IAPAR 61, UPF 15 and São Carlos show better bromatological performance with reduced fiber content and higher dry matter digestibility.
The objective of this study was to assess yield loss of weed-infested cassava and the degree of interference of weeds on the crop productivity in response to the fertilization of NPK. The study was conducted at the Universidade Estadual do Sudoeste da Bahia, in the municipality of Vitória da Conquista, BA, with two different treatment groups that were evaluated in parcels with and without fertilizer. The treatments of the first group consisted of initial coexistence periods in which the cassava plants and weeds were put to live together: 35, 70, 105, 140 and 175 days after planting (DAP); in the second group, the cassava plants, initially, remain free from weeds during the same periods. Weeds were assessed every 35 days, from the 35 to 525 days after planting of cassava, determining the fresh mass of the identified species in the evaluated treatments with and without fertilizers. The characteristics of root yield, shoot weight, harvest index, dry mass of roots, starch content and flour production were evaluated 18 months after plantation. The predominant weeds in the experimental area were: Panicum maximum, Brachiaria plantaginea, Sida rhombifolia, Pavonia cancellata, Portulaca oleracea, Cynodon dactylon and Setaria parviflora. The interference of the weeds in the cassava yield was bigger when the crop was subjected to fertilization, in coexistence periods from the 35 days after planting; however, when cassava plants were kept in the absence or in coexistence with weeds up to 35 DAP, fertilization provided increase in crop productivity factors. The competition with weeds resulted in high losses in root yield of the cassava plant, thus, being necessary the control of the invading plants in the period between 35 and 175 DAP.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.