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“dry weight decrease”

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Organism: Malus domestica ✕

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reduced soil water did not affect root or aboveground dry weight.

Taxon: appleMalus domesticat0
Treatment: moderate reduction of soil water contente0
Outcome: root and above ground dry weighte0
Direction: not affectede0

Not reportedComparator

Verbatim

e0
“The moderate reduction of soil water content induced a decrease in predawn leaf water potential and leaf gas exchange; however, root and above ground dry weight were not affected.”
✓ located verbatim in the source · abstract, characters 521–700

t0
“apple”
✓ located verbatim in the source · title, characters 79–84

Title

Leaf assimilation, carbon translocation and root respiration in 'Budagovski 9' apple cuttings grown in low soil moisture condition

Moreno Toselli; Graziella Marcolini; James. A. Flore; et al. European Journal of Horticultural Science 2014. doi:10.1079/ejhs.2014/4509982

Other claims from this paper (9)

Intervention effect Reduced soil water lowered predawn leaf water potential and gas exchange.
Intervention effect Water limited trees fixed less pulsed carbon-13 than well watered controls.
Observation Carbon-13 concentration declined in leaves over days 1 to 16.
Observation Carbon-13 concentration rose in roots and trunk.
Observation Carbon-13 concentration stayed stable in herbaceous shoots.
Intervention effect Carbon-13 partitioning did not differ by irrigation treatment.
Intervention effect Water limitation reduced root respiration of newly fixed carbon.
Association Root respiration was linearly related to excess carbon allocated to roots.
Observation Root respiration of new carbon reached zero by day 16.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Fine root dry weight of the G935 tree was insensitive to drought.

Taxon: Malus domesticaMalus domesticae0
Material: G935e2
Outcome: Fine root (<2 mm diameter) dry weighte1
Qualifier: insensitivee2

Verbatim

e0
“we assessed the drought tolerance of 1-year-old apple (Malus domestica Borkh.) trees exposed to extreme water stress, focusing on growth and physiological responses”
✓ located verbatim in the source · abstract, characters 15–179

e1
“Fine root (<2 mm diameter) dry weight showed the greatest decrease in the CG5087 tree”
✓ located verbatim in the source · abstract, characters 1182–1267

e2
“whereas the G935 tree was insensitive”
✓ located verbatim in the source · abstract, characters 1269–1306

Title

Drought Tolerance of ‘Fuji’ Apple Trees Grafted onto G, CG, or M Series Rootstocks: Growth and Physiology

Byeong-Ho Choi; Narayan Bhusal; Woo-Tae Jeong; et al. Horticultural Science and Technology 2020. doi:10.7235/hort.20200054

Other claims from this paper (15)

Intervention effect Drought decreased the leaf water potential of apple trees dramatically.
Intervention effect Drought decreased the tree vertical growth rate of apple trees dramatically.
Association The growth rate decrease under drought was considerable in G202, G935 and M26 trees, which generally produced a large leaf area.
Intervention effect Drought reduced the trunk cross-sectional area of apple trees by almost 50%.
Intervention effect Drought reduced the leaf area of apple trees by more than 60%.
Intervention effect After 11 days of control-level irrigation, the leaf water potential of drought-stressed apple trees had not fully recovered to the control level.
Association Photosynthesis-related parameters decreased substantially as the soil water potential changed.
Observation Photosynthesis-related parameters did not noticeably differ among the apple trees.
Association Fine root dry weight showed the greatest decrease under drought in the CG5087 tree.
Observation The root:shoot biomass ratio of the CG5087 tree was 0.24.
Observation The root:shoot biomass ratio of the M26 tree was 0.23.
Observation The root:shoot biomass ratio of the G214 and CG4814 trees was 0.38.
Association The CG5087 tree was the most sensitive to drought stress among the rootstocks.
Association Drought tolerance was higher in G202, G214 and G935 trees than in M26 trees.
Association M26 trees had a drought tolerance comparable to G11, CG4814 and M9 trees.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

SADH spraying did not change the total dry weight of young apple trees within at least four weeks after application.

Taxon: appleMalus domesticae0
Treatment: 2 000 ppm of SADHe0
Outcome: total dry weight of the plantse2
Direction: no differencee2
Qualifier: Within at least four weeks after the applicatione2
Comparator: unsprayed controlse2

Verbatim

e0
“Spraying young apple trees with 2 000 ppm of SADH resulted in a rapid decrease in the elongation growth of the apical meristem”
✓ located verbatim in the source · abstract, characters 7–133

e2
“Within at least four weeks after the application no difference was observed in the total dry weight of the plants compared to unsprayed controls”
✓ located verbatim in the source · abstract, characters 135–279

Title

Effect of Succinic Acid 2, 2-Dimethyl Hydrazide (SADH) on Starch Accumulation in Young Apple Trees

S. D. Filipovich; R. N. Rowe Journal of Horticultural Science 1977. doi:10.1080/00221589.1977.11514764

Other claims from this paper (2)

Intervention effect Spraying young apple trees with SADH decreased elongation growth of the apical meristem.
Intervention effect SADH spraying significantly increased starch content in the whole plant, bark, wood and roots of young apple trees.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

At 1500 nematodes per kg soil, shoot dry weight of Bud 9 and M.9 was not significantly different from that at 500 nematodes per kg soil.

Taxon: appleMalus domesticat0
Material: Bud 9 and M.9e3
Treatment: 1 500 nematodes kg -1 soil densitye3
Interactor: Pratylenchus penetransPratylenchus penetranst0pathogen
Outcome: dry shoot weighte3
Direction: not significantly differente3
Comparator: 500 nematodes kg -1 soil densitye3

Verbatim

t0
“Pathogenicity of Pratylenchus penetrans to dwarfing apple rootstocks”
✓ located verbatim in the source · title, characters 0–68

e3
“Under the 1 500 nematodes kg -1 soil density, the dry shoot weight of Bud 9 and M.9 were not significantly different from the 500 nematodes kg -1 soil density except M.26 which exhibited a 29% decrease”
✓ located verbatim in the source · abstract, characters 354–555

Title

Pathogenicity of Pratylenchus penetrans to dwarfing apple rootstocks

Guy Bélair; Nathalie Dauphinais; Yvon Fournier Phytoprotection 2019. doi:10.7202/1059304ar

Other claims from this paper (9)

Intervention effect At 500 nematodes per kg soil, shoot dry weight of Bud 9 was significantly reduced by 30%.
Intervention effect At 500 nematodes per kg soil, shoot dry weight of M.9 was significantly reduced by 23%.
Intervention effect At 500 nematodes per kg soil, shoot dry weight of M.26 was significantly reduced by 14%.
Intervention effect At 1500 nematodes per kg soil, root dry weight of M.26 was reduced by 26% relative to non-inoculated trees.
Intervention effect Root dry weights of rootstocks, except M.26, were not significantly reduced by these P. penetrans densities.
Intervention effect At 1500 nematodes per kg soil, shoot dry weight of M.26 decreased by 29%.
Association M.26 may show some tolerance to P. penetrans at lower density compared with M.9 and Bud 9 (preliminary).
Association At higher nematode densities, Bud 9 and M.9 showed greater root-system tolerance than M.26.
Recommendation Further assessment of susceptibility and tolerance of dwarfing apple rootstocks to P. penetrans densities is needed.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Increasing salt concentration non significantly affected number of leaves and number of roots.

Taxon: Apple (M. pomila)Malus domesticat0
Treatment: increasing salt concentratione0
Outcome: number of leaves and number of rootse0
Direction: non significantly affectede0

Not reportedComparator

Verbatim

e0
“The results of this work indicate that increasing salt concentration in the nutrient solution leads to: (a) a decline in the stomata conductance (b) the reduction of leaf chlorophyll content (c) to a decrease in leaf water potential and relative water content (d) the reduction of vegetative shoot growth, diameter of stem and trunk width area (e) significantly decrease in the leaf area, leaf expansion rate, leaf fresh…” Show full quote
✓ located verbatim in the source · abstract, characters 1498–2262

t0
“Apple (M. pomila)”
✓ located verbatim in the source · title, characters 12–29

Title

Response of Apple (M. pomila) Dwarf Rootstocks To Salinity Stress

Amim Alizadeh; Valida Alizade 2013

Other claims from this paper (8)

Intervention effect Increasing salt concentration decline stomata conductance.
Intervention effect Increasing salt concentration reduction leaf chlorophyll content.
Intervention effect Increasing salt concentration decrease leaf water potential and relative water content.
Intervention effect Increasing salt concentration reduction vegetative shoot growth, diameter of stem and trunk width area.
Intervention effect Increasing salt concentration decrease leaf area, leaf expansion rate, leaf fresh and dry weight.
Intervention effect Increasing salt concentration increase percentage of dead leaves.
Intervention effect Increasing salt concentration increase root/leaf ratio.
Intervention effect Increasing salt concentration increase proline amino acid and soluble sugars content in leaves.

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