Assessment of effects of maize streak virus on yield of maize
1984
Mzira, C.N. (Plant Protection Research Institute, Department of Research and Specialist Services (Zimbabwe))
Under natural field infection, maize streak virus (MSV) disease caused substantial yield losses in three commercial maize varieties in Zimbabwe. There were close relationships between streak incidence and yield loss, and between yield loss and time of infection. Infection occurring within eight weeks after emergence was critical and resulted in heavy losses in all the cultivars used. Control of the vector with carbofuran effectively reduced yield loss due to MSV disease. The rate of spread of MSV in carbofuran-treated maize plots was 10-times slower than in the untreated
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Эту запись предоставил Central Library, Ministry of Agriculture