Abstract
Metalaxyl [ N ‐(2,6‐dimethylphenyi)‐ N ‐(methoxyacetyl)‐alanine methyl ester], an acylalanine fungicide, has been reported to be effective in controlling fungi in the order Peronosporales. Metalaxyl shows promise for control of Phytophthora root rot ( Phytophthora megasperma Drechs.) and damping‐off ( Pythium spp.) in seedling alfalfa ( Medicago satlva L.) if seed treatment does not interfere with the N 2 ‐fixing bacterium ( Rhizobium meliloti Dangeard). Spring nofill plantings often are made earlier where fall‐applied herbicide is used to suppress sod. Plantings made in cooler weather are more susceptible to seed‐ and soil‐borne diseases. Compatibility of this fungicide with R. meliloti when used as a seed treatment was determined using the most‐probable‐number technique, by measuring seedling growth, total seedling crude protein, and N 2 fixation as estimated by acetylene reduction. Metalaxyl had no detrimental effect on viability or N 2 ‐fixing capability of R. melilotl at recommended rates of application. Under growth chamber conditions, metalaxyl increased seedling survival by 45 to 60% over nontreated P. ultimum Trow infested controls.
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Claims 2
Claim · model-written summary
Metalaxyl at recommended rates had no detrimental effect on the viability or N2-fixing capability of Rhizobium meliloti.
- Taxon
- alfalfa
Medicago sativae2 - Treatment
- Metalaxyle1
- Interactor
- R. melilotle4symbiont
- Outcome
- viabilitye1
- Direction
- no detrimental effecte1
- Qualifier
- at recommended rates of applicatione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Metalaxyl had no detrimental effect on viability”
e2“seedling alfalfa ( Medicago satlva L.)”
e3“at recommended rates of application”
e4“R. melilotl”
Claim · model-written summary
Under growth chamber conditions, metalaxyl increased seedling survival by 45 to 60% over nontreated Pythium ultimum infested controls.
- Taxon
- alfalfaMedicago sativae2
- Treatment
- metalaxyle3
- Interactor
- P. ultimum TrowGlobisporangium ultimume3pathogen
- Outcome
- seedling survivale3
- Direction
- increasede3
- Value
- 45 to 60%e3
- Comparator
- nontreated P. ultimum Trow infested controlse3
- Setting
- growth chamber conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“seedling alfalfa ( Medicago satlva L.)”
e3“Under growth chamber conditions, metalaxyl increased seedling survival by 45 to 60% over nontreated P. ultimum Trow infested controls”
The same questions in other papers
metalaxyl · growth · Medicago sativa (alfalfa)Positive and negative results
2 in the opposite direction
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.