TITLE

TRATAMENTO DE SEMENTES DE ALGODOEIRO COM FUNGICIDAS NO CONTROLE DE PATÓGENOS CAUSADORES DE TOMBAMENTO DE PLÂNTULAS

AUTHOR(S)
Chitarra, Luiz Gonzaga; Goulart, Augusto César Pereira; Zorato, Maria de Fátima
PUB. DATE
March 2009
SOURCE
Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p168
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The cotton seedling damping-off is a worldwide problem caused by a complex of soil-borne and seed-borne fungi, occurring separately or in combination, and cause pre- or post-emergence damping-off. The main etiological agents causing the damping-off are Rhizoctonia solani Khun, Colletotrichum gossypii South and Colletotrichum gossypii var. cephalosporioides. The aim of this work was to evaluate the effectiveness of many fungicides that have been used on the treatment of cottonseeds to control pathogens associated with seeds and/or presents in the soil. Cottonseeds free of pathogens, inoculated and non-inoculated with Colletotrichum gossypii var. cephalosporioides (Cgc), were treated with tolylfluanid + pencycuron + triadimenol; carboxin + thiram and fluazinam + thiophanate methyl. On the Growing on Test, the non-treated seeds inoculated with Cgc showed a lower level of emergence. The higher level of emergence occurred on non-inoculated seeds treated with tolylfluanid + pencycuron + triadimenol. The most efficient treatment in the control of post-emergence damping-off in substrates containing Rhizoctonia solani was tolylfluanid + pencycuron + triadimenol, followed by carboxin + thiram. In the field, the highest severity of ramulosis, caused by Cgc, occurred in plants from non-treated seeds inocculated with Cgc. No phytotoxic effects were observed on cotton seedlings.
ACCESSION #
48646998

 

Related Articles

  • ADEQUAÇÃO DO TESTE DE TETRAZÓLIO PARA SEMENTES DE ALGODOEIRO. Cervi, Fernanda; Mendonça, Elisabeth Aparecida Furtado // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p177 

    The tetrazolium test stands out among other tests because it allows the simultaneous evaluation of seed viability and vigor. The existing recommendation for conducting the test with cotton seeds is rather slow and presents difficulties in the way of preparing and evaluating seeds. Considering...

  • MÉTODO DE PREPARO DAS SEMENTES DE MAMONEIRA (Ricinus communis L.) PARA O TESTE DE TETRAZÓLIO. Gaspar-Oliveira, Carolina Maria; Martins, Cibele Chalita; Nakagawa, João // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p160 

    The tetrazolium test is a quick and accurate method for estimating seed viability and vigor. This research had the objective of standardizing the preparation methods for castor bean seeds (Ricinus communis L.) to evaluate the physiological potential by the tetrazolium test. The evaluated seed...

  • TESTE DE CONDUTIVIDADE ELÉTRICA NA AVALIAÇÃO DO VIGOR DE SEMENTES DE RUCULA. Alves, Charline Zaratin; de Sá, Marco Eustáquio // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p203 

    The research studied methodologies for the electrical conductivity test, to verify its sensitivity for identifying different vigor levels in arugula seed lots. Five seed lots each from the Rucula Cultivada and Rucula Gigante were used. The following tests were employed: standard germination,...

  • EQUACIONAMENTO DA QUALIDADE INICIAL DE SEMENTES DE MILHO E SOJA PARA APLICAÇÃO NO MODELO DE PROBIT. Sinício, Roberto; Bhering, Maria Carmen; Vidigal, Deborah de Souza; Dias, Denise Cunha Fernandes Santos // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p122 

    The objective was to equate the initial quality of the seeds (Ki), used in the probit model for predicting the longevity of corn (Zea mays) and soybean (Glycine max), as a function of the result of the initial tests of germination and accelerated ageing. Eleven seed lots of different corn and...

  • QUALIDADE FISIOLÓGICA DA SEMENTE E DESEMPENHO DE PLANTAS ISOLADAS EM SOJA. Schuch, Luis Osmar Braga; Kolchinski, Eliane Maria; Finatto, Jonas Alex // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p144 

    The objective of this research was to evaluate the effect of seed physiological quality on the grain yield in isolated soybean plants. The experiment was conducted at the "Eliseu Maciel" Agriculture College (FAEM/UFPel) using the Mercedez soybean cultivars. This study evaluated two levels of...

  • INFLUÊNCIA DA COLHEITA E DO ARMAZENAMENTO NA QUALIDADE FISIOLÓGICA DE SEMENTES DE MAMONA. Fanan, Sheila; Medina, Priscila Fratin; de Camargo, Marcelo Bento Paes; Ramos, Nilza Patrícia // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p150 

    Racemes are produced in several orders during the castor bean crop growth that develop under different environmental conditions which can cause variations in the seed quality in the field and during storage. This paper aimed to evaluate the effect of different harvest (racemes orders and harvest...

  • TESTE RÁPIDO DE CONDUTIVIDADE ELÉTRICA E CORRELAÇÃO COM OUTROS TESTES DE VIGOR. de Carvalho, Luzineide F.; Sediyama, Carlos Sigueyuki; Dias, Denise Cunha Fernandes dos Santos; Reis, Múcio Silva; Moreira, Maurílio Alves // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p239 

    The objective of this study was to estimate the correlation between the results of the electric conductivity test carried out with different temperatures and soaking periods and other tests that estimate seed physiological quality. Soybean seeds were harvested at the R8 stage and 15, 30 and 45...

  • TOLERÂNCIA CRUZADA INDUZIDA POR CHOQUE TÉRMICO NA GERMINAÇÃO DE SEMENTE DE FEIJÃO. Custódio, Ceci Castilho; Vivan, Márcia Regina; Nunes, Rita de Cássia Alves; de Agostini, Edna Antônia Torquato // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p131 

    Stress could be defined as an external factor that may have some disadvantageous influence on the plant. In tropical regions, crops suffer abiotic stress especially due to water deficit and high temperature. Cross tolerance allows the plants to be acclimated after a short exposure to a specific...

  • INFLUÊNCIA DA DISPOSIÇÃO, NÚMERO E TAMANHO DAS SEMENTES NO TESTE DE COMPRIMENTO DE PLÂNTULAS DE SOJA. Pereira, Welison Andrade; Savio, Filipe Luis; Borém, Aluízio; Dias, Denise Cunha Fernandes dos Santos // Revista Brasileira de Sementes;2009, Vol. 31 Issue 1, p113 

    The seedling length testing is a good methodology for seed vigor evaluation. It's low cost, no need of sophisticated equipments, neither human resource very specialized associated with quick results has made it very popular. However, it has been observed presence of seedlings with short and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics