Claim · model-written summary
Frequent irrigation every 3 days improved leaf number of Paulownia tomentosa saplings.
- Taxon
- Paulownia tomentosa
Paulownia tomentosae0 - Treatment
- Frequent irrigation, especially every 3 dayse1
- Outcome
- leaf numbere1
- Direction
- improvede1
- Value
- 21.77e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“36 Paulownia tomentosa saplings under semi-arid conditions in Bazian district, Kurdistan Region of Iraq”
e1“Frequent irrigation, especially every 3 days, improved stem height (127.66 cm), diameter (23.25 mm), and leaf number (21.77)”
Title
Parzhin Asad Ismael; Sherzad Omar Hamad Kirkuk University Journal For Agricultural Sciences 2026. doi:10.58928/ku26.17112
Other claims from this paper (16)
- Association Irrigation frequency had a dominant and statistically significant influence on morphological parameters of Paulownia tomentosa saplings.
- Intervention effect Frequent irrigation every 3 days improved stem height of Paulownia tomentosa saplings.
- Intervention effect Frequent irrigation every 3 days improved stem diameter of Paulownia tomentosa saplings.
- Intervention effect Irrigation every 9 days gave the weakest growth of Paulownia tomentosa saplings, regardless of mulching.
- Intervention effect Frequent irrigation every 3 days with hay mulch greatly boosted dry biomass in all plant parts.
- Intervention effect Mulching alone had little effect on growth of Paulownia tomentosa saplings.
- Intervention effect With irrigation, hay mulch enhanced growth of Paulownia tomentosa saplings.
- Intervention effect Hay mulch improved nitrogen uptake of Paulownia tomentosa saplings.
- Intervention effect Black plastic mulch enhanced potassium absorption of Paulownia tomentosa saplings.
- Observation Highest nitrogen content of Paulownia tomentosa saplings (3.23%) occurred under 9-day irrigation with hay.
- Observation Highest potassium content of Paulownia tomentosa saplings (0.51%) occurred under 3-day irrigation with black plastic.
- Association Phosphorus uptake of Paulownia tomentosa saplings was affected by irrigation.
- Observation Protein content of Paulownia tomentosa saplings (14.98%) was reported under 9-day irrigation with hay mulch.
- Observation Proline content of Paulownia tomentosa saplings (8.92 µg/g) was reported under 9-day irrigation with hay mulch.
- Observation Chlorophyll of Paulownia tomentosa saplings showed no significant change among treatments.
- Observation Water use efficiency of Paulownia tomentosa saplings was highest (1.53 g/L) under 9-day irrigation with black plastic.