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| Ibarra Medina, Verónica Azucena. |
| Los hongos fitopatógenos Sclerotinia sclerotiorum y S. minor afectan raíces, tallos y tubérculos de más de 400 especies de plantas, reduciendo los rendimientos del cultivo hasta en 50%. Con el propósito de obtener microorganismos dirigidos al control de los patógenos mencionados, se realizaron aislamientos del género Trichoderma, a partir de muestras de suelo con diferente uso agropecuario y forestal, de los cuales se obtuvieron 71 aislamientos por la técnica de cebo. Mediante la técnica de cultivos duales se evaluó la colonización y el micoparasitismo de los aislados de Trichoderma sobre el micelio de ambos patógenos, además del daño hacia los esclerocios. El porcentaje de colonización sobre el micelio de S. sclerotiorum y S. minor, fue mayor en... |
| Tipo: Tesis |
Palavras-chave: Micoparasitismo; Sclerotinia; Degradación de esclerocios; Inoculantes; Maestría; Edafología; Mycoparasitism; Sclerotia degradation; Inoculants. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1239 |
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| Roth,Anna Paula de Toledo Piza; Reis,Ricardo Andrade; Siqueira,Gustavo Rezende; Roth,Marcella de Toledo Piza; Resende,Flávio Dutra de; Monteiro,Rafael Rodrigues. |
| This trial aimed to evaluate the effects of the time post-burning, and additives on fermentative characteristics, losses and chemical composition on the sugar cane silage. The sugar cane variety IAC 86-2480 was ensiled on the 1, 4, 7, 10 and 14 days after burning. The additives evaluated were: control (Cont.), Lactobacillus buchneri (LB), Calcium oxide micro pulverized (CO), and Lactobacillus buchneri (LB) plus Calcium oxide micro pulverized (LB + CO). The yeast population was determined before ensiled. After 56 days of the fermentation period the silos were opening to take samplings. The experimental design was a completely randomized design, in a factorial scheme (additive and burning time) with seven treatments and four replications. The sugar cane was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calcium oxide micro pulverized; Ensilage; Inoculants; Lactobacillus buchneri. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000100012 |
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| Spolaor,Leandro Teodoski; Gonçalves,Leandro Simões Azeredo; Santos,Odair José Andrade Pais dos; Oliveira,André Luiz Martinez de; Scapim,Carlos Alberto; Bertagna,Filipe Augusto Bengosi; Kuki,Mauricio Carlos. |
| ABSTRACT The use of plant growth-promoting bacteria is a promising alternative with low environmental impact to increase the efficiency of use of chemical fertilizers, ensuring high yield with better cost-effective ratio. In maize crops, several studies have demonstrated an increased yield when Azospirillum-based inoculants are used. In the case of popcorn, there are no available studies related to use of inoculation and its response on yield parameters. Thus, the aim of this study was to evaluate the field performance of popcorn when inoculated with the commercial product Masterfix L (A. brasilense Ab-V5 and A. brasilense Ab-V6) and the non-commercial inoculant UEL (A. brasilense Ab-V5 + Rhizobium sp. 53GRM1) associated with nitrogen fertilization. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azospirillum brasilense; Rhizobium sp.; Inoculants; Grain yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000100033 |
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| Ruíz-Valdiviezo,Víctor Manuel; Canseco,Lucía María Cristina Ventura; Suárez,Luis Antonio Castillo; Gutiérrez-Miceli,Federico Antonio; Dendooven,Luc; Rincón-Rosales,Reiner. |
| Native rhizobia are ideal for use as commercial legume inoculants. The characteristics of the carrier used to store the inoculants are important for the survival and symbiotic potential of the rhizobia. The objective of this study was to investigate the effects of peat (PEAT), perlite sugarcane bagasse (PSB), carboxymethyl cellulose plus starch (CMCS), and yeast extract mannitol supplemented with mannitol (YEMM) on the survival, nodulation potential and N2 fixation capacity of the native strains Sinorhizobium mexicanum ITTG R7T and Rhizobium calliandrae LBP2-1T and of the reference strain Rhizobium etli CFN42T. A factorial design (4 × 3) with four repetitions was used to determine the symbiotic potential of the rhizobial strains. The survival of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rhizobia; Inoculants; Nodulation; Nitrogen fixation; Carrier. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300735 |
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| Solanki,Manu; Garg,Faquir C.. |
| A transconjugant of Azotobacter chroococcum Mac 27 tagged with lac Z(A. chroococcum Mac27 L) was found to possess high levels of β-galactosidase activity constitutively.Further, the lac Z marker was found to be stably integrated into the chromosome of the A. chroococcum Mac 27 and did not have any adverse effect on growth, nitrogen fixation and excretion of ammonia. A quick method to determine the viable cell number in broth culture and carrier based inoculants has been developed on the basis of β-galactosidase assay. It was found that there was a direct relationship between the number of cell as determined by standard plate count and intensity of colour that developed upon degradation of ONPG due to β-galactosidase activity .The method was found to be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lac Z; Transconjugant; Β galactosidase; Inoculants; Brassica campestris. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200030 |
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