Abstract
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. Three levels of zinc 0, 5 and 10 kg ha -1 and three levels of iron 0, 2.5 and 5 kg ha -1 were applied in soil to see their effect alone and in different combination on grain yield, oil contents, other agronomic parameters and concentrations of zinc and iron in leaves of sunflower. Highest grain yields (2743 kg ha -1 ) and 1000-seed weight were obtained in treatment that received combined application of 10 kg zinc and 5 kg iron ha -1 . Addition of 0, 2.5 and 5.0 kg ha -1 iron and 5.0 kg ha -1 zinc alone increased yield non-significantly as compared to control. The combined application of zinc + iron at 5.0 kg ha -1 produced significantly (P ≤ 0.05) higher yield than control but was similar to the lower doses. 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 . The concentrations of zinc and total iron in the leaves were increased with zinc and iron application. Maximum concentration of zinc (70.5 mg kg -1 ) and iron (553.5 mg kg -1 ) in leaves was recorded with application of 10 kg zinc + 5 kg iron ha -1 . The results of this study suggest that soil application of 10 kg zinc and 5 kg iron ha -1 has a positive affect, both
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Claims 12
Claim · model-written summary
Combined application of 10 kg zinc and 5 kg iron per ha gives the highest sunflower grain yield of 2743 kg ha-1
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- combined application of 10 kg zinc and 5 kg iron ha -1e1
- Outcome
- grain yieldse1
- Direction
- Higheste1
- Value
- 2743 kg ha -1e1
- Setting
- National Agricultural Research Centre, Islamabade0
Not reportedComparator
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”
e1“Highest grain yields (2743 kg ha -1 ) and 1000-seed weight were obtained in treatment that received combined application of 10 kg zinc and 5 kg iron ha -1”
Claim · model-written summary
Combined application of 10 kg zinc and 5 kg iron per ha gives the highest 1000-seed weight of sunflower
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- combined application of 10 kg zinc and 5 kg iron ha -1e1
- Outcome
- 1000-seed weighte1
- Direction
- Higheste1
Not reportedComparator
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”
e1“Highest grain yields (2743 kg ha -1 ) and 1000-seed weight were obtained in treatment that received combined application of 10 kg zinc and 5 kg iron ha -1”
Claim · model-written summary
Zinc alone at 5.0 kg per ha increases sunflower yield non-significantly compared with control
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 5.0 kg ha -1 zinc alonee2
- Outcome
- yielde2
- Direction
- increasede2
- Comparator
- controle2
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”
e2“Addition of 0, 2.5 and 5.0 kg ha -1 iron and 5.0 kg ha -1 zinc alone increased yield non-significantly as compared to control”
Claim · model-written summary
Iron alone at 0 to 5.0 kg per ha increases sunflower yield non-significantly compared with control
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Addition of 0, 2.5 and 5.0 kg ha -1 irone2
- Outcome
- yielde2
- Direction
- increasede2
- Comparator
- controle2
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”
e2“Addition of 0, 2.5 and 5.0 kg ha -1 iron and 5.0 kg ha -1 zinc alone increased yield non-significantly as compared to control”
Claim · model-written summary
Combined zinc and iron at 5.0 kg per ha gives significantly higher sunflower yield than control, similar to the lower doses
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- combined application of zinc + iron at 5.0 kg ha -1e3
- Outcome
- yielde3
- Direction
- highere3
- Qualifier
- P ≤ 0.05e3
- Comparator
- controle3
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”
e3“The combined application of zinc + iron at 5.0 kg ha -1 produced significantly (P ≤ 0.05) higher yield than control but was similar to the lower doses”
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
- sunflowerHelianthus annuuse0
- Treatment
- 10 kg zinc and 5 kg Iron ha -1e4
- Outcome
- plant heighte4
- Direction
- Higheste4
- Value
- 167.0cme4
Not reportedComparator
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”
Claim · model-written summary
Zinc and iron at 10 kg and 5 kg per ha give a greater sunflower head diameter of 17.6 cm
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 10 kg zinc and 5 kg Iron ha -1e4
- Outcome
- head diametere4
- Direction
- greatere4
- Value
- 17.6 cme4
Not reportedComparator
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”
Claim · model-written summary
Zinc and iron at 10 kg and 5 kg per ha give the highest sunflower oil content of 39.7%
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 10 kg zinc and 5 kg Iron ha -1e4
- Outcome
- oil contentse4
- Direction
- higheste4
- Value
- 39.7%e4
Not reportedComparator
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”
Claim · model-written summary
Zinc and iron application increase zinc and total iron concentrations in sunflower leaves
- Taxon
- sunflowerHelianthus annuuse0
- Organ / stage
- leavese5
- Treatment
- zinc and iron applicatione5
- Outcome
- concentrations of zinc and total irone5
- Direction
- increasede5
Not reportedComparator
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”
e5“The concentrations of zinc and total iron in the leaves were increased with zinc and iron application”
Claim · model-written summary
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
- Taxon
- sunflowerHelianthus annuuse0
- Organ / stage
- leavese6
- Treatment
- 10 kg zinc + 5 kg iron ha -1e6
- Outcome
- concentration of zince6
- Direction
- Maximume6
- Value
- 70.5 mg kg -1e6
Not reportedComparator
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”
e6“Maximum concentration of zinc (70.5 mg kg -1) and iron (553.5 mg kg -1) in leaves was recorded with application of 10 kg zinc + 5 kg iron ha -1”
Claim · model-written summary
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
- Taxon
- sunflowerHelianthus annuuse0
- Organ / stage
- leavese6
- Treatment
- 10 kg zinc + 5 kg iron ha -1e6
- Outcome
- irone6
- Direction
- Maximume6
- Value
- 553.5 mg kg -1e6
Not reportedComparator
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”
e6“Maximum concentration of zinc (70.5 mg kg -1) and iron (553.5 mg kg -1) in leaves was recorded with application of 10 kg zinc + 5 kg iron ha -1”
Claim · model-written summary
Soil application of 10 kg zinc and 5 kg iron per ha is suggested to have a positive effect on sunflower
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- soil application of 10 kg zinc and 5 kg iron ha -1e7
- Outcome
- positive affecte7
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”
e7“The results of this study suggest that soil application of 10 kg zinc and 5 kg iron ha -1 has a positive affect, both”
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See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.