| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
|
Data corrente: |
05/03/1992 |
|
Data da última atualização: |
05/03/1992 |
|
Autoria: |
AULD, B. A.; SAY, M. M.; RIDINGS, H. I.; ANDREWS, J. |
|
Afiliação: |
Fores Road - Agricultural Research & Veterinary Centre, Yanco - Yanco Agricultural Institute. |
|
Título: |
Field applications of Colletotrichum orbiculare to control Xanthium spinosum. |
|
Ano de publicação: |
1990 |
|
Fonte/Imprenta: |
Agriculture, Ecosytems and Environment, v.32, p.315-323, 1990. |
|
ISBN: |
0167-8809/90 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The fungal pathogens Colletotrichum orbiculare is being assessed as the basis for a mycoherbicide for biological control of Xanthium spinosum, Bathurst burr or spiny cockleburr. Following preliminary small plot field applications in summer 1987/88, applications of aqueous spore suspensions of 10(6) or 10(7) spores ml-1 were made at four sites in summer 1988/89. The sites included a dryland pasture, an irrigated soybean field and two sites at which the effect of artificial dew was assessed using X. spinosum in pots in the field. Percentage kills ranged from 50 to 100%; the best results (98-100%) being obtained at the dryland grazing site. At one of the transplant sites provision of an artificial dew period of 18 h ensured 100% Kill of X. spinosum under subsequent high ambient temperatures compared with 50% Kill for plants experiencing the natural dew period (0.3h). The efficacy of C. orbiculare tended to increase with increasing periods of high humidity. The formulation of a spore suspension into a product with a low evaporation rate could play a major role in achieving consistently effective results with C. orbiculare particularly in the western part of the range of X. spinosum. |
|
Palavras-Chave: |
Fungos. |
|
Thesagro: |
Controle Biológico; Doença; Germinação; População. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01784naa a2200217 a 4500
001 1646526
005 1992-03-05
008 1990 bl --- 0-- u #d
100 1 $aAULD, B. A.
245 $aField applications of Colletotrichum orbiculare to control Xanthium spinosum.
260 $c1990
520 $aThe fungal pathogens Colletotrichum orbiculare is being assessed as the basis for a mycoherbicide for biological control of Xanthium spinosum, Bathurst burr or spiny cockleburr. Following preliminary small plot field applications in summer 1987/88, applications of aqueous spore suspensions of 10(6) or 10(7) spores ml-1 were made at four sites in summer 1988/89. The sites included a dryland pasture, an irrigated soybean field and two sites at which the effect of artificial dew was assessed using X. spinosum in pots in the field. Percentage kills ranged from 50 to 100%; the best results (98-100%) being obtained at the dryland grazing site. At one of the transplant sites provision of an artificial dew period of 18 h ensured 100% Kill of X. spinosum under subsequent high ambient temperatures compared with 50% Kill for plants experiencing the natural dew period (0.3h). The efficacy of C. orbiculare tended to increase with increasing periods of high humidity. The formulation of a spore suspension into a product with a low evaporation rate could play a major role in achieving consistently effective results with C. orbiculare particularly in the western part of the range of X. spinosum.
650 $aControle Biológico
650 $aDoença
650 $aGerminação
650 $aPopulação
653 $aFungos
700 1 $aSAY, M. M.
700 1 $aRIDINGS, H. I.
700 1 $aANDREWS, J.
773 $tAgriculture, Ecosytems and Environment$gv.32, p.315-323, 1990.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 1 | |
| Registros recuperados : 1 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
