Incidence of sugarcane smut in Louisiana and its effect on yield
Sugarcane (interspecific hybrids of Saccharum) infected by Ustilago scitaminea was observed in 13 of 15 sugarcane-growing parishes in 1984. Frequency of observed infested fields and incidence of diseased plants within fields were highest in susceptible cultivars CP 73-351 and NCo 310, intermediate in moderately susceptible cultivars CP 65-357 and CP 74-383, lowest in resistant cultivars CP 70-330 and CP 72-370, and absent in CP 70-321 and CP 72-356. Cane tonnage yields were negatively correlated (P = 0.01) with increasing levels of smut incidence observed in small plots in three plant-cane and one ratoon-cane field of CP 73-351. The most significant effect of smut on yield was a reduction in number of healthy stalks in diseased plots
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| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
1986
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| Subjects: | PLANTAS INDUSTRIALES, CAÑA DE AZÚCAR, HIBRIDOS, USTILAGO SCITAMINEA, MORBOSIDAD, RESISTENCIA A LA ENFERMEDAD, RENDIMIENTO, PERDIDAS, ENFERMEDADES FUNGOSAS, |
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