Forty isolates of endophytic bacteria isolated from banana tree roots were assessed as to their capacity solubilize phosphate in a solid culture medium supplemented with different inorganic and one organic source phosphorus. The amount phosphorus (P) each liquid was quantified, an indirect assessment acid phosphatase activity performed. All assays had fully randomized design, three repetitions. Approximately 67.5% the 40 solubilized tricalcium 7.5% soy lecithin; no exhibited P solubilization...

The genetic diversity of endophytic bacteria in banana 'Prata Anã' roots was characterized. Two hundred and one were isolated, 151 which classified as Gram-positive 50 Gram-negative. No hypersensitivity response observed any the isolates. rep-PCR technique generated different molecular profiles for each primer set (REP, ERIC BOX). Fifty readable loci obtained all fragments polymorphic. Amplified ribosomal DNA restriction analysis (ARDRA) isolates based on cleavage with four enzymes yielded...

Angular leaf spot, caused by Phaeoisariopsis griseola (Sacc.) Ferraris, is one of the major diseases affecting common bean ( Phaseolus vulgaris L.) in Brazil which can lead to severe yield losses. Previous studies demonstrated that cultivar MAR‐2 was resistant race 63.39 P. . The objective this work characterize resistance angular spot an F 2 population derived from cross with Ruda (susceptible parent), and also identify random amplified polymorphic DNA (RAPD) markers linked gene. Cultivar...

Abstract Variability in floral, fruit, and seed characteristics, oil content of 15 accession Jatropha curcas during early development were assessed two flowering periods south Florida subtropical climate. The had leaf flushing March. Field evaluation using 18 quantitative traits showed significant variation among accessions. number female flowers : male flower ratio ranged from 1 to 8.8 67.8, respectively. Fruit set by natural pollination was 89 66% the first (1st) second (2nd) periods, A...

The phenological growth stages of various species monocotyledonous and dicotyledonous plants can be uniformly coded using the Biologische Bundesanstalt, Bundessortenamt, und Chemische Industrie (BBCH) scale. aim present study was to determine duration different temperature requirements sugar-apple, Annona squamosa, during two crop cycles in semiarid region Brazil. Phenological were divided into eight ten possible principal stages: (0) bud development, (1) leaf (3) shoot/branch (5)...

The biological function of fruiting is to produce and disseminate seeds.However, seedless fruits have some advantages, including the ease consumption increased added value final product fruit quality.The present study aimed evaluate combined use gibberellic acid (GA 3 ) hand pollination with Annona squamosa pollen grains on set physical chemical parameters 'Gefner' custard apple fruits.The experiment was performed in a commercial orchard randomized design, 11 treatments, four replications...

A cultura da cagaiteira apresenta perspectivas de expansão no cerrado e Nordeste brasileiro. Com o presente trabalho teve-se como objetivo avaliar as características germinação sementes diferentes tamanhos em três tipos substratos. O delineamento experimental utilizado foi blocos inteiramente casualizados um esquema parcela subdividida, com fatorial (2 x3), consistindo dois sementes, grandes (13,5 mm largura, 15,91 comprimento 1,41 g massa) pequenas (9,94 12,19 0,68 substratos (plugmix;...

Abstract Jatropha curcas L. (jatropha) is a species identified for biofuel production because of the high quality oil produced by its seeds. However, jatropha undomesticated and little information available about reproductive characteristics. Breeding genetic improvement programs are much needed development as bioenergy crop. Information floral display mode reproduction considered essential breeding programs. In this study, total number female flowers, male to flower ratio, fruit set, in...

Este trabalho teve como objetivo avaliar o efeito da aplicação de ácido giberélico (GA3) no pegamento, frutificação efetiva e qualidade frutos atemoieira 'Gefner', nas condições irrigadas do norte Minas Gerais. O experimento foi conduzido em pomar comercial Matias Cardoso. delineamento experimental blocos casualizados, com quatro repetições cinco por parcela. Os tratamentos utilizados foram diferentes doses produto Pro-Gibb®, composto 10% GA3, na forma pó solúvel, sendo: 0 (testemunha), 250;...

A banana é uma das frutas tropicais mais consumidas no mundo, respondendo por, aproximadamente, 10% do comércio mundial de frutas. O objetivo deste trabalho foi avaliar o crescimento e a produção três cultivares bananeira sob sistemas plantio, em dois ciclos produção, período compreendido entre março 2004 outubro 2006, Janaúba, Minas Gerais. delineamento experimental blocos casualizados duas análises estatísticas: Primeira: 'Prata-Anã' seis diferentes plantio; Segunda: fatorial 2 x + 1, com...

Este estudo teve por objetivo avaliar o uso de diferentes invólucros nos frutos atemoieira e pinheira na qualidade físico-química dos incidência da broca-dos-frutos, Cerconota anonella. Os experimentos foram instalados em dois pomares comerciais: um no município Matias Cardoso outro Verdelândia, Norte Minas Gerais. tratamentos para a consistiram em: 1) Testemunha (sem ensacamento); 2) Saco plástico leitoso; 3) TNT (tecido-não-tecido) branco sem fundo 4) com fundo. Para foi modificado apenas...

ABSTRACT The use of bio-fertilizers and microbial inoculants that promote plant growth increased yield has been accepted as an alternative to reduce the chemical fertilizers. objective present study was evaluate effect promoting bacteria inoculation on quality micropropagated banana seedlings ‘Prata Anã’. experimental design completely randomized, with four replications treatments consisted 24 isolates endophytic bacteria. EB-50 (Bacillus sp.) EB-133 amyloliquefaciens) characterized...

ABSTRACT: The objective of this study was to evaluate the effects different doses uniconazole (UCZ) on 'Palmer' mango vegetative and reproductive response fruit physical, chemical, productive characteristics during off-season in northern Minas Gerais, Brazil. experiment followed a randomized block design. UCZ tested at following applied leaves expressed g active ingredient (a.i.) per tree: 0.0, 1.0, 1.0+1.0 (2.0) after 30 days; 1.0+1.0+1.0 (3.0) subdivided into 30-day intervals; 1.0+1.0+2.0...

Abstract Adenium obesum (Forssk.) Roem. & Schult., popularly known as desert rose, has become a valuable ornamental plant. In floriculture, the production of hybrids is prioritized. Hence, knowledge on floral biology and sexual reproduction target species fundamental. The objectives this study were: (1) to test sucrose concentrations temperatures for in vitro germination A. pollen grains; (2) identify effect temperature viability (3) evaluate grains stigma receptivity pre-anthesis, at...

A mancha-angular, cujo agente causal é o fungo Phaeoisariopsis griseola, uma das principais doenças do feijoeiro comum (Phaseolus vulgaris). Os marcadores moleculares disponíveis ainda não são suficientes para monitorar todos os genes de resistência a essa doença. Por isso, objetivou-se neste trabalho estudar herança da aos patótipos 63.39 e 31.23 P. em populações derivadas 'Ouro Negro' (ON) 'US Pinto 111' (PT), identificar ligados presentes nessas cultivares. Quando inoculadas com patótipo...

The purpose of this study was to evaluate fruit set and pollen grain germination 'Brazilian seedless' sugar apple. Two experiments were performed: 1) one in a completely randomized design with three treatments (natural artificial pollination self-fertilization), replications 10 flowers per plot, 2) the other treatments: grains seeded wild-type, atemoya (hybrid apple cherimoya) 'Gefner', five replications. A 100% achieved by pollination. No formation observed after self-fertilization....