Assessment of potato clones developed for Lowland tropical conditions to bacterial wilt, early blight and late blight
| MSI99P2401 | |
| Saumtally, S. Ganoo, S. Ferré, P. Autrey, L. J. C. | |
| Assessment of potato clones developed for Lowland tropical conditions to bacterial wilt, early blight and late blight | |
| African Potato Association (APA), Proceedings of the 4th Triennial Congress of the African Potato Association, Pretoria, South African, 23-28 February 1997 | |
| Book chapter | |
| 1997 | |
| p. 197-200 | |
| 1-86849-086-6 | |
| Pretoria, Agricultural Research Council | |
| En | |
| En | |
| The Mauritius Sugar Industry Research Institute (MSIRI) and the International Potato Centre (CIP) started in 1989 a collaborative project to develop clones adapted to lowland tropical conditions. During the process of selection, promising clones belonging to two series (1989 and 1990) were evaluated against the three major diseases occurring in Mauritius, namely bacterial wilt (Burkholderia solanacearum), early blight (Alternaria solani) and late blight (Phytophthora infestans). Trials against race 1 biovar III of bacterial wilt were conducted in infected soil and 16 promising clones of the 1989 series showed a range of wilt infection from 50 to 100 per cent, while in 12 clones of the 1990 series, percentage wilt varied between 61 and 100 per cent. Most of the clones however showed a high tolerance to late blight nder conditions of heavy disease pressure. Of the 14 varieties that were tested from 1989 series, only one showed 5 per cent infection while the remaining ones were uninfected. Absence of late blight was also noted in varieties of the 1990 series except in two clones that showed 20 and 50 per cent infection respectively. Infection to early blight in 26 clones of both series varied from slight (13 varieties), moderate (9 varieties) and heavy (4 varieties). No immunity to the disease was observed. Although clones with appreciable resistance to bacterial wilt was not found, field tolerance could be expected as same clones were as tolerant as Spunta which is widely cultivated in Mauritius with low wild incidence. With good disease management practices and judicious application of fungicides, some of the MSIRI/CIP clones could prove useful to boost up the regional producntion of potato. | |
| POTATOES CLONES BURKHOLDERIA SOLANACEARUM ALTERNARIA SOLANI PHYTOPHTHORA INFESTANS DISEASES WILTS BACTERIAL DISEASES FUNGAL DISEASES BACTERIAL WILT EARLY BLIGHT LATE BLIGHT | |
| MAURITIUS | |
| Potatoes | |
| Diseases | |
| 1997-04-17 | |
| En | |
| FC | |
| FC |