Abstract
In order to evaluate efficiency of zinc and iron microelements application methods on sunflower, an experiment was conducted in the Agricultural Research Station of Eastern Azerbaijan province in 2008. The experimental design was a RCBD with eight treatments (F1 control, F2 iron, F3 zinc, F4 iron + zinc in the form of soil utility, F5 iron, F6 zinc, F7 iron+ zinc in the form of solution foliar application, and F8 iron + zinc in the form of soil utility and foliar application). Analysis of variance showed that there were significant differences among treatments on given traits, antioxidant enzymes activity, fatty acids percentage, plant height, seed weight to capitulum weight ratio, protein percentage, oil percentage, oil yield, 1000 seed weight, seed yield, nitrogen, phosphorus and potassium percentage of leaves, zinc and iron content of leaves and capitulum diameters. The highest seed yield, oil yield, oil percentage, 1000 seed weight, seed weight to capitulum weight ratio and protein percentage were obtained from the soil and foliar application of iron + zinc treatments (F8). Also, the highest amounts of nitrogen, phosphorus and potassium concentration in leaves were achieved from control treatment which was an indication of non-efficiency of iron and zinc on the absorption rate of these substances in the leaves. The correlation between effective traits on the seed yield, such as, capitulum diameter, number of seed rows in capitulum, seed weight to capitulum weight ratio and 1000-seed weight were positively significant. In general, foliar and soil application of zinc and iron had the highest efficiency in aspect of seed production. The comparison of the various methods of fertilization showed that foliar application was more effective than soil application. Also, micronutrient foliar application increased concentration of elements, especially zinc and iron. Antioxidant enzymes activity was different in response to treatments, also the highest palmitoleic, oleic and myristic acid were observed in F6 and F7 treatments.
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Claims 9
Claim · model-written summary
Soil and foliar iron plus zinc application gave the highest seed yield, oil yield and oil percentage of sunflower.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- soil and foliar application of iron + zinc treatments (F8)e2
- Outcome
- seed yield, oil yield, oil percentagee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“The highest seed yield, oil yield, oil percentage”
e2“were obtained from the soil and foliar application of iron + zinc treatments (F8)”
Claim · model-written summary
Soil and foliar iron plus zinc application gave the highest 1000 seed weight, seed weight to capitulum weight ratio and protein percentage of sunflower.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- soil and foliar application of iron + zinc treatments (F8)e2
- Outcome
- 1000 seed weight, seed weight to capitulum weight ratio and protein percentagee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“The highest seed yield, oil yield, oil percentage, 1000 seed weight, seed weight to capitulum weight ratio and protein percentage”
e2“were obtained from the soil and foliar application of iron + zinc treatments (F8)”
Claim · model-written summary
The control treatment gave the highest leaf nitrogen, phosphorus and potassium concentrations, indicating that iron and zinc did not improve their absorption.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- control treatmente4
- Outcome
- nitrogen, phosphorus and potassium concentration in leavese4
- Direction
- higheste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e4“the highest amounts of nitrogen, phosphorus and potassium concentration in leaves were achieved from control treatment”
Claim · model-written summary
Foliar application was more effective than soil application of zinc and iron for seed production.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- foliar applicatione5
- Outcome
- efficiency in aspect of seed productione6
- Direction
- more effectivee5
- Comparator
- soil applicatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e5“The comparison of the various methods of fertilization showed that foliar application was more effective than soil application”
e6“foliar and soil application of zinc and iron had the highest efficiency in aspect of seed production”
Claim · model-written summary
Micronutrient foliar application increased leaf concentrations of zinc and iron in sunflower.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- micronutrient foliar applicatione7
- Outcome
- concentration of elements, especially zinc and irone7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e7“micronutrient foliar application increased concentration of elements, especially zinc and iron”
Claim · model-written summary
Antioxidant enzyme activity differed among the sunflower treatments.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- treatmentse1
- Outcome
- Antioxidant enzymes activitye1
- Direction
- differente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“Antioxidant enzymes activity was different in response to treatments”
Claim · model-written summary
Palmitoleic, oleic and myristic acid were highest in the F6 and F7 treatments of sunflower.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- F6 and F7 treatmentse1
- Outcome
- palmitoleic, oleic and myristic acide1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“the highest palmitoleic, oleic and myristic acid were observed in F6 and F7 treatments”
Claim · model-written summary
Capitulum diameter, seed rows, seed weight to capitulum weight ratio and 1000-seed weight were positively and significantly correlated with seed yield.
- Taxon
- sunflowerHelianthus annuust0
- Organ / stage
- capitulume1
- Outcome
- correlation between effective traits on the seed yielde1
- Direction
- positively significante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“The correlation between effective traits on the seed yield, such as, capitulum diameter, number of seed rows in capitulum, seed weight to capitulum weight ratio and 1000-seed weight were positively significant”
Claim · model-written summary
Application treatments significantly differed in the given traits of sunflower.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- treatmentse1
- Outcome
- given traitse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Efficiency of zinc and iron application methods on sunflower.”
e1“showed that there were significant differences among treatments on given traits”
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See all 158 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.