In:
Plant Disease, Scientific Societies, Vol. 89, No. 5 ( 2005-05), p. 501-506
Abstract:
Bacterial wilt, caused by Ralstonia solanacearum, is a widespread and devastating disease of many crops, ornamentals, and weeds in the tropic and subtropic areas. Host plant resistance to the disease offers a long-term, inexpensive, and environmentally safe control measure. A high level of resistance to bacterial wilt is common in small-fruited, pungent peppers, but absent in large-fruited (bell pepper) cultivars. The inheritance of resistance was analyzed in the progeny from a cross between a resistant Indonesian line (PI 322719) and a susceptible bell pepper line (Yolo Wonder). Resistance to bacterial wilt was stable against local isolates from the French Lesser Antilles (Guadeloupe) over 2 years during the hot and rainy season. Resistance was shown to be controlled by a few genes in the small-fruited parent, with quantitative and additive effects as previously shown in tomato. Therefore, the transfer of resistance to bell pepper cultivars should be relatively easy. However, resistance to bacterial wilt was also shown to be linked to susceptibility to Tobacco mosaic virus and to root-knot nematodes; therefore, additional crosses will be required in the breeding program to deliver multi-resistant cultivars.
Type of Medium:
Online Resource
ISSN:
0191-2917
,
1943-7692
Language:
English
Publisher:
Scientific Societies
Publication Date:
2005
detail.hit.zdb_id:
2042679-3
