Data/hora: 25/06/2024 05:34:44

Biblioteca(s): | Embrapa Trigo.
Data corrente: | 10/01/2010
Data da última atualização: | 20/02/2019
Autoria: | SZE-JIH, H.; ROBINSON, A. G.
Título: | Further studies on resistance of barley varieties to the aphids Rhopalosiphum padi (L.).
Ano de publicação: | 1963
Fonte/Imprenta: | Canadian Journal of Plant Science, Ottawa, v. 43, n. 3, p. 343-348, 1963.
Idioma: | Inglês
Conteúdo: | Seventy-eight of three hundred and thirty-eight barley varieties tested in the greenhouse showed some resistance (antibiosis or tolerance) to the aphid Rhopalosiphum padi (L.). When the 78 varieties were retested m the field, 29 demonstrated both antibiosis and tolerance. No varieties tested were completely immune to the aphid. Fourteen varieties which had shown resistance in field tests in 1961 were retested in 1962, and all continued to demonstrate both antibiosis and tolerance. About 9.1 per cent of 474 varieties tested in 1961 or 1962 from the Canadian Genetic Stock of Barley may be regarded as source material for breeding for resistance to R. padi.
Palavras-Chave: | Cultivar; Estudo.
Thesagro: | Cevada; Praga; Pulgão; Resistência.
Categoria do assunto: | --
Registro original: | Embrapa Trigo (CNPT)
Exemplares: | CNPT - (22210-1) - ADD - SP - -- - 08291 -  - 08291 - DIS