Claim · model-written summary
Group IV mortality exceeded 50%.
MalusNot reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Group IV is characterized by a mortality of more than 50 %”
t0“Malus Taxa and Hybrids”
Title
Susceptibility of Grafted Malus Taxa and Hybrids to Apple Proliferation Disease
Sylvia Kartte; E. Seemüller Journal of Phytopathology 1991. doi:10.1111/j.1439-0434.1991.tb04739.x
Other claims from this paper (11)
- Observation Grafted Malus trees differed in response to apple proliferation infection.
- Observation The tested material was divided into five groups by recovery, witches broom, mortality and MLO population.
- Observation Group I domestic apple had low recovery and mortality, frequent witches broom, and high MLO titer.
- Observation Group II had higher mortality than group I.
- Observation Group III mortality resembled group II while recovery was higher and witches broom and MLO titer were significantly lower.
- Observation Group IV usually had low witches broom formation and MLO numbers in phloem.
- Observation Most group V trees recovered or never showed symptoms and had low mortality.
- Observation After inoculation, group V MLO populations were low or degenerate.
- Observation MLO-positive samples decreased during recovery until the organism was undetectable in most cases.
- Observation Group V came from apomictic rootstock selections crossing M. sieboldii and M. sargentii with M. pumila.
- Recommendation The authors judged group V suitable as resistant rootstocks for controlling apple proliferation.