Factors influencing establishment inVicia faba

Abstract

S U M M A R YTannin-containing and tannin-free members of two pairs of near-isogenic lines of Vicia faba were studied in glasshouse experiments at Plant Breeding International Cambridge in 1989 to determine the cause of poor establishment of tannin-free lines in the field. Tests in field soils demonstrated marked differences in disease severity and growth, the tannin-containing lines being the more resistant to Fusarium culmorum and F. solani, the principal pathogens isolated. Susceptibility was not attributable to testa damage in tannin-free lines. In further tests on a range of varieties, some tanninfree and low-tannin, coloured-flowered varieties were as resistant as standard high-tannin lines. The results indicate that it should be possible to select for resistance to seedling infection and to subsequent poor establishment among tannin-free lines and varieties.

Muleteer and terrestrial transportation in South Cone (Mendoza, 1780-1800)

“…En el primer tercio del siglo XVIII se compraron 1.300 en 20 años, es decir, 65 personas por año para Chile y Perú. Esta cifra se incrementó sensiblemente y hacia finales de siglo, el virrey del Río de la Plata, Nicolás de Arredondo, calculaba que Chile y Lima demandaban anualmente 500 esclavos cada uno 33 . Con frecuencia se organizaban contingentes muy nutridos de esclavos que se trasladaban a través de la cordillera.…”

Present status and future strategy in breeding faba beans (Vicia Faba L.) for resistance to biotic and abiotic stresses

“…than the tannin-containing member, especially in stressed soil conditions like low temperature and high moisture (Kantar, 1992) . On the other hand, resistance can also be selected in zero-tannin lines (van Loon et al ., 1989 ;Pascual Villalobos & Jellis, 1990) .…”

Screening techniques and sources of resistance to foliar diseases caused by fungi and bacteria in cool season food legumes

“…& Bloxam) Vestergr. in pea, see Lawyer, 1984], high content of phenolics in seed (e .g ., resistance to various pathogens affecting establishment in pea, chickpea, and faba bean, see Muehlbauer & Kraft, 1978 ;Knights & Mailer, 1989 ;Pascual Villalobos & Jellis, 1990), and long straw (e .g ., resistance to Ascochyta fabae Spegazzini in beans, see Jellis et al ., 1985) .…”