Claim · model-written summary
Zinc and iron at 10 kg and 5 kg per ha give the highest sunflower plant height of 167.0 cm
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- 10 kg zinc and 5 kg Iron ha -1e4
- Outcome
- plant heighte4
- Direction
- Higheste4
- Value
- 167.0cme4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Two field experiments were conducted at National Agricultural Research Centre, Islamabad during spring seasons 2002-03 to evaluate response of sunflower (Helianthus annus L.) to different levels of zinc and iron under irrigated conditions”
e4“Highest plant height (167.0cm) and greater head diameter (17.6 cm) and highest oil contents (39.7%) were achieved with the application of 10 kg zinc and 5 kg Iron ha -1”
Title
Response of sunflower to different levels of zinc and iron under irrigated conditions.
Mukhtar Ahmad Khan; Jalal Ud Din; Sadia Nasreen; et al. Sarhad Journal of Agriculture 2009
Other claims from this paper (11)
- Intervention effect Combined application of 10 kg zinc and 5 kg iron per ha gives the highest sunflower grain yield of 2743 kg ha-1
- Intervention effect Combined application of 10 kg zinc and 5 kg iron per ha gives the highest 1000-seed weight of sunflower
- Intervention effect Zinc alone at 5.0 kg per ha increases sunflower yield non-significantly compared with control
- Intervention effect Iron alone at 0 to 5.0 kg per ha increases sunflower yield non-significantly compared with control
- Intervention effect Combined zinc and iron at 5.0 kg per ha gives significantly higher sunflower yield than control, similar to the lower doses
- Intervention effect Zinc and iron at 10 kg and 5 kg per ha give a greater sunflower head diameter of 17.6 cm
- Intervention effect Zinc and iron at 10 kg and 5 kg per ha give the highest sunflower oil content of 39.7%
- Intervention effect Zinc and iron application increase zinc and total iron concentrations in sunflower leaves
- Intervention effect Zinc and iron at 10 kg and 5 kg per ha give the maximum zinc concentration of 70.5 mg kg-1 in sunflower leaves
- Intervention effect Zinc and iron at 10 kg and 5 kg per ha give the maximum iron concentration of 553.5 mg kg-1 in sunflower leaves
- Recommendation Soil application of 10 kg zinc and 5 kg iron per ha is suggested to have a positive effect on sunflower