Claim · model-written summary
SH.40 interstems reduced fine root production and mortality relative to BC rootstock.
- Taxon
- apple
Malus domesticat0 - Treatment
- SH.40e0
- Outcome
- fine root production and mortalitye0
- Direction
- extensive reductione0
- Comparator
- BC rootstocke0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The use of M.9 and SH.40 as interstems led to an extensive reduction in fine root production and mortality in comparison with BC rootstock.”
t0“Apple”
Title
Dwarfing Effect of Apple Rootstocks Is Intimately Associated with Low Number of Fine Roots
Haishan An; Feixiong Luo; Ting Wu; et al. HortScience 2017. doi:10.21273/hortsci11579-16
Other claims from this paper (14)
- Intervention effect Fine root production was lower on M.9 rootstock than BC rootstock.
- Intervention effect Fine root mortality was lower on M.9 rootstock than BC rootstock.
- Intervention effect Fine root production was lower on SH.40 than BC rootstock.
- Intervention effect Fine root mortality was lower on SH.40 than BC rootstock.
- Intervention effect M.9 interstems reduced fine root production and mortality relative to BC rootstock.
- Association Root number density followed root length density patterns across rootstocks and interstems.
- Association Average root length did not follow root length density patterns.
- Observation About half of M.9 tree fine roots occurred in the top 0–20 cm of soil.
- Observation In BC trees, 55.15% of fine roots occurred at 100- to 150-cm depth.
- Intervention effect Interstems did not change soil-depth distribution of fine roots.
- Observation Across rootstocks and interstems, roots living less than 80 days were generated in spring and summer.
- Observation Across rootstocks and interstems, roots living over 81 days were produced almost year-round.
- Association Lower fine root number was associated with dwarfing in dwarfing rootstocks and interstems.
- Association Average root length was not associated with dwarfing.