Citation
Sadaqat Mehdi S., . and Carson M.L., . Relationship of age of sunflower seedlings to infection by Plasmopara halstedii. -143-145. ISSN 0128-0686
Abstract
The relationship of age of seedlings of infection by Plasmopara halstedii was studied by inoculating 3-day-old to 15-day-old sunflower seedlings. There appears to be a negative and significant correlation (r -0.91 ) between sunflower seedling age and percentage of seedling infection of downy mildew. Over 83 percent of the seedlings up to 8 days of age were susceptible of this pathogen. However the 15-day-old plants showed some resistance. The percentage infection decreased with increase in age of plants.
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Abstract
The relationship of age of seedlings of infection by Plasmopara halstedii was studied by inoculating 3-day-old to 15-day-old sunflower seedlings. There appears to be a negative and significant correlation (r -0.91 ) between sunflower seedling age and percentage of seedling infection of downy mildew. Over 83 percent of the seedlings up to 8 days of age were susceptible of this pathogen. However the 15-day-old plants showed some resistance. The percentage infection decreased with increase in age of plants.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | 2 tables; 7 ref. Summary (En Malay) |
| AGROVOC Term: | HELIANTHUS ANNUUS |
| AGROVOC Term: | PLASMOPARA |
| AGROVOC Term: | PLANTULAS/ EDAD |
| AGROVOC Term: | INFECCION |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:55 |
| URI: | http://webagris.upm.edu.my/id/eprint/20034 |
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