Searching about Resistance of Common Cultivated Varieties in Varamin to Separated Fungal Phytophthora drechsleri from the Same Place
Bibliographic record
Abstract
Dieback plant disease caused by fungi species Phytophthora is one of the most important soil borne disease in Iran. During studies in Varamin, one of the most harmful factors on crops is Phtophtora species in that place. So that in almost all different villages of this city, limitation of cultivation of crops such as cantaloupe, that is one of the most important product in this region, has arisen. This study had been done for searching about reaction of common cultivars in some plants in Varamin to the separated Phtophthora drechsleri from the same place by measuring plant growth factors. Seeds of melon in Ivanaki cultivar, cantaloupe in Samsoori cultivar, tomato in Urbana cultivar, red bean in Mahalli cultivar, were planted in pots containing sterile soil, then mentioned fungal were infected by Zoospore suspension and kept in greenhouse condition. In addition, the reaction of safflower seedlings of species Phytpophthora melonis was used to differentiate species. Percentage of disease as well as growth factors such as stem fresh and dry weight, stem length and root length during the time of 1, 2 and 3 weeks after inoculation had been measured. Symptoms in different hosts were seen such as reducing growth, root, and crown rot, yellowing and wilting of aerial organ and ultimately these symptoms led to death in susceptible hosts and destroyed them. Due to the discussed factors, cantaloupe and, melons were very sensitive hosts, tomatoes were sensitive hosts and beans were relatively resistant hosts, the results indicated sensitivity of used cultivars to the phytophthora in this area. Also in checking the germination percentage of seeds, separated Phtophthora drechsleri could affect the germination of melon and cantaloupe seeds, their germination percentage is drastically reducing. In a parallel study, the same research had been done to measure the effect of biofertilizers Trichodermin B and Subtilin for Phtophthora drechsleri control in mentioned cultivars, the results indicated positive effects of these two biofertilizers in pathogenic phytophthora control.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".