Abstract
ABSTRACT Iron (Fe) is shown to be of great importance in some specific functions, and without it, the plant can experience a nutritional imbalance, thus affecting its development. The present study aimed to evaluate the effects of the application of Fe doses in coffee (Coffea arabica L.) ‘Obatã IAC 1669-20’ seedlings via foliar, previous fertilization of the substrate, and aqueous solution on the substrate and identify the best management. The experiment was carried out in a completely randomized design, with seven treatments and five replicates. The treatments were five Fe concentrations via foliar (0.30, 0.45, 0.60, 0.75, and 0.90 g of Fe L-1), previous fertilization on the substrate (0.372 g Fe m-3), and aqueous solution on the substrate (0.30 g Fe L-1), totaling seven treatments. Fertilization with Fe via foliar at 0.45 g Fe L-1 in the production of coffee seedlings showed significant influence on seedling height, stem diameter, and leaf area, in addition to having one of the highest values of Dickson quality index. Thus, coffee seedlings with the application of 0.45 g Fe L-1 via foliar had the best results, with 11.2 cm height, 4.1 mm diameter, 17.3 cm2 leaf area, and 0.32 Dickson quality index. It promoted seedlings with more significant gains in the foliar area (24.2%) and stem diameter (27.4%), allowing a shorter time in nursery. The treatment aqueous solution 0.30 g Fe L-1 on the substrate is a second option for the Fe application in coffee ‘Obatã IAC 1669-20’ seedlings. The treatment with the previous fertilization of the substrate with 0.372 g Fe m-3 is the less recommended.
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Claims 11
Claim · model-written summary
Foliar Fe at 0.45 g Fe L-1 significantly influenced coffee seedling height, stem diameter and leaf area.
CoffeaNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with Fe via foliar at 0.45 g Fe L-1 in the production of coffee seedlings showed significant influence on seedling height, stem diameter, and leaf area, in addition to having one of the highest values of Dickson quality index.”
Claim · model-written summary
Foliar Fe at 0.45 g Fe L-1 produced one of the highest Dickson quality index values.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with Fe via foliar at 0.45 g Fe L-1 in the production of coffee seedlings showed significant influence on seedling height, stem diameter, and leaf area, in addition to having one of the highest values of Dickson quality index.”
Claim · model-written summary
The best foliar Fe treatment yielded 11.2 cm seedling height.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, coffee seedlings with the application of 0.45 g Fe L-1 via foliar had the best results, with 11.2 cm height, 4.1 mm diameter, 17.3 cm2 leaf area, and 0.32 Dickson quality index.”
Claim · model-written summary
The best foliar Fe treatment yielded 4.1 mm seedling diameter.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, coffee seedlings with the application of 0.45 g Fe L-1 via foliar had the best results, with 11.2 cm height, 4.1 mm diameter, 17.3 cm2 leaf area, and 0.32 Dickson quality index.”
Claim · model-written summary
The best foliar Fe treatment yielded 17.3 cm2 leaf area.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, coffee seedlings with the application of 0.45 g Fe L-1 via foliar had the best results, with 11.2 cm height, 4.1 mm diameter, 17.3 cm2 leaf area, and 0.32 Dickson quality index.”
Claim · model-written summary
The best foliar Fe treatment yielded a 0.32 Dickson quality index.
- Treatment
- application of 0.45 g Fe L-1 via foliare0
- Outcome
- Dickson quality indexe0
- Direction
- beste0
- Value
- 0.32e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, coffee seedlings with the application of 0.45 g Fe L-1 via foliar had the best results, with 11.2 cm height, 4.1 mm diameter, 17.3 cm2 leaf area, and 0.32 Dickson quality index.”
Claim · model-written summary
The foliar treatment increased leaf area by 24.2%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It promoted seedlings with more significant gains in the foliar area (24.2%) and stem diameter (27.4%), allowing a shorter time in nursery.”
t0“coffee”
e1“0.45 g Fe L-1 via foliar”
Claim · model-written summary
The foliar treatment increased stem diameter by 27.4%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It promoted seedlings with more significant gains in the foliar area (24.2%) and stem diameter (27.4%), allowing a shorter time in nursery.”
t0“coffee”
e1“0.45 g Fe L-1 via foliar”
Claim · model-written summary
Foliar Fe allowed a shorter time in nursery.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It promoted seedlings with more significant gains in the foliar area (24.2%) and stem diameter (27.4%), allowing a shorter time in nursery.”
t0“coffee”
e1“0.45 g Fe L-1 via foliar”
Claim · model-written summary
The authors identify substrate aqueous solution at 0.30 g Fe L-1 as a second option for coffee seedlings.
- Material
- Obatã IAC 1669-20e0
- Treatment
- aqueous solution 0.30 g Fe L-1 on the substratee0
- Outcome
- second option for the Fe applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment aqueous solution 0.30 g Fe L-1 on the substrate is a second option for the Fe application in coffee ‘Obatã IAC 1669-20’ seedlings.”
Claim · model-written summary
The authors least recommend previous substrate fertilization at 0.372 g Fe m-3.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment with the previous fertilization of the substrate with 0.372 g Fe m-3 is the less recommended.”
t0“coffee”
The same questions in other papers
application · quality: general · Coffea (coffee)Positive and negative results
1 in the opposite direction
- no effect
application · growth · Coffea (coffee)Positive and negative results
6 papers in the same direction as this paper · 5 in the opposite direction
- negative
- no effect
- negative
8 papers more in this group
See all 12 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.