Abstract
Excessive application of P fertilizers, use of the bicarbonated water sources for irrigation concomitant to a low level of organic matter have resulted in widespread iron deficiencies in crop plants in Iran. One of the strategies to overcome this problem is to select tolerant genotypes to iron deficiency (i.e. iron-use-efficient genotypes) or bred genotypes with high-micronutrient-uptake ability. Therefore, this experiment was conducted to study the behavior of twelve Iranian rice landraces and improved genotypes to iron deficiency (Tarom Mahalli, Amol 2, Musa-Tarom, Gharib, Shiroudi, Bejar, Neda, Nogouran, Jozdan, Sazandegi, Zayande Roud, and Kouhrang) as exposed to two levels of chelated iron fertilizers, including 5mM (iron deficiency) and 50mM (no iron deficiency) in Yushida nutrient solution culture. A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013. The results showed that the iron content, shoot and root dry weights, total dry weight, leaf area, root length and volume and the number of tillers were significantly affected by genotypes, iron fertilizer, and their interaction. The mean dry weights were 0.215, 0.138, and 0.255 g per plant in northern landraces, northern improved, and central Iranian genotypes under no iron deficiency condition, but they were decreased by 25.7, 35.2, and 23.0% under iron deficiency condition, respectively. Based on the magnitude of decrease of total biomass under iron deficiency condition, genotypes such as Musa-Tarom, Bejar, and Zayande Roud seemed to be more tolerant in comparison to Jozdan, Amol 2, and Shiroudi.
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Claims 10
Claim · model-written summary
Iron fertilizer and genotype significantly affected iron content of rice, with an interaction.
- Taxon
- rice
Oryza sativat0 - Treatment
- iron fertilizere1
- Outcome
- iron contente1
- Qualifier
- their interactione1
- Setting
- Soilless Culture Centere2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e1“The results showed that the iron content, shoot and root dry weights, total dry weight, leaf area, root length and volume and the number of tillers were significantly affected by genotypes, iron fertilizer, and their interaction”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
Claim · model-written summary
Iron fertilizer and genotype significantly affected shoot dry weight, root dry weight and total dry weight of rice.
- Taxon
- riceOryza sativat0
- Treatment
- iron fertilizere1
- Outcome
- shoot and root dry weights, total dry weighte1
- Qualifier
- their interactione1
- Setting
- Soilless Culture Centere2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e1“The results showed that the iron content, shoot and root dry weights, total dry weight, leaf area, root length and volume and the number of tillers were significantly affected by genotypes, iron fertilizer, and their interaction”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
Claim · model-written summary
Iron fertilizer and genotype significantly affected leaf area, root length and root volume of rice.
- Taxon
- riceOryza sativat0
- Treatment
- iron fertilizere1
- Outcome
- leaf area, root length and volumee1
- Qualifier
- their interactione1
- Setting
- Soilless Culture Centere2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e1“The results showed that the iron content, shoot and root dry weights, total dry weight, leaf area, root length and volume and the number of tillers were significantly affected by genotypes, iron fertilizer, and their interaction”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
Claim · model-written summary
Iron fertilizer and genotype significantly affected the number of tillers of rice.
- Taxon
- riceOryza sativat0
- Treatment
- iron fertilizere1
- Outcome
- number of tillerse1
- Qualifier
- their interactione1
- Setting
- Soilless Culture Centere2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e1“The results showed that the iron content, shoot and root dry weights, total dry weight, leaf area, root length and volume and the number of tillers were significantly affected by genotypes, iron fertilizer, and their interaction”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
Claim · model-written summary
Northern rice landraces lost dry weight under iron deficiency, from a mean of 0.215 g per plant under no iron deficiency.
- Taxon
- riceOryza sativat0
- Material
- northern landracese3
- Treatment
- iron deficiency conditione3
- Outcome
- mean dry weightse3
- Direction
- decreasede3
- Value
- 25.7e3
- Qualifier
- 0.215e3
- Comparator
- no iron deficiency conditione3
- Setting
- Soilless Culture Centere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
e3“The mean dry weights were 0.215, 0.138, and 0.255 g per plant in northern landraces, northern improved, and central Iranian genotypes under no iron deficiency condition, but they were decreased by 25.7, 35.2, and 23.0% under iron deficiency condition, respectively”
Claim · model-written summary
Northern improved rice genotypes lost dry weight under iron deficiency, from a mean of 0.138 g per plant under no iron deficiency.
- Taxon
- riceOryza sativat0
- Material
- northern improvede3
- Treatment
- iron deficiency conditione3
- Outcome
- mean dry weightse3
- Direction
- decreasede3
- Value
- 35.2e3
- Qualifier
- 0.138e3
- Comparator
- no iron deficiency conditione3
- Setting
- Soilless Culture Centere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
e3“The mean dry weights were 0.215, 0.138, and 0.255 g per plant in northern landraces, northern improved, and central Iranian genotypes under no iron deficiency condition, but they were decreased by 25.7, 35.2, and 23.0% under iron deficiency condition, respectively”
Claim · model-written summary
Central Iranian rice genotypes lost dry weight under iron deficiency, from a mean of 0.255 g per plant under no iron deficiency.
- Taxon
- riceOryza sativat0
- Material
- central Iranian genotypese3
- Treatment
- iron deficiency conditione3
- Outcome
- mean dry weightse3
- Direction
- decreasede3
- Value
- 23.0%e3
- Qualifier
- 0.255 g per plante3
- Comparator
- no iron deficiency conditione3
- Setting
- Soilless Culture Centere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e2“A factorial experiment based on a completely randomized design with four replicates was carried out in Soilless Culture Center at Isfahan University of Technology, Isfahan, Iran in 2013”
e3“The mean dry weights were 0.215, 0.138, and 0.255 g per plant in northern landraces, northern improved, and central Iranian genotypes under no iron deficiency condition, but they were decreased by 25.7, 35.2, and 23.0% under iron deficiency condition, respectively”
Claim · model-written summary
Musa-Tarom seemed more tolerant of iron deficiency than Jozdan, Amol 2 and Shiroudi, with a smaller biomass decrease.
- Taxon
- riceOryza sativat0
- Material
- Musa-Tarome4
- Treatment
- iron deficiency conditione4
- Outcome
- magnitude of decrease of total biomasse4
- Direction
- decreasee4
- Qualifier
- seemed to be more tolerante4
- Comparator
- Jozdan, Amol 2, and Shiroudie4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e4“Based on the magnitude of decrease of total biomass under iron deficiency condition, genotypes such as Musa-Tarom, Bejar, and Zayande Roud seemed to be more tolerant in comparison to Jozdan, Amol 2, and Shiroudi”
Claim · model-written summary
Bejar seemed more tolerant of iron deficiency than Jozdan, Amol 2 and Shiroudi, with a smaller biomass decrease.
- Taxon
- riceOryza sativat0
- Material
- Bejare4
- Treatment
- iron deficiency conditione4
- Outcome
- magnitude of decrease of total biomasse4
- Direction
- decreasee4
- Qualifier
- seemed to be more tolerante4
- Comparator
- Jozdan, Amol 2, and Shiroudie4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e4“Based on the magnitude of decrease of total biomass under iron deficiency condition, genotypes such as Musa-Tarom, Bejar, and Zayande Roud seemed to be more tolerant in comparison to Jozdan, Amol 2, and Shiroudi”
Claim · model-written summary
Zayande Roud seemed more tolerant of iron deficiency than Jozdan, Amol 2 and Shiroudi, with a smaller biomass decrease.
- Taxon
- riceOryza sativat0
- Material
- Zayande Roude4
- Treatment
- iron deficiency conditione4
- Outcome
- magnitude of decrease of total biomasse4
- Direction
- decreasee4
- Qualifier
- seemed to be more tolerante4
- Comparator
- Jozdan, Amol 2, and Shiroudie4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Iranian Rice Landraces”
e4“Based on the magnitude of decrease of total biomass under iron deficiency condition, genotypes such as Musa-Tarom, Bejar, and Zayande Roud seemed to be more tolerant in comparison to Jozdan, Amol 2, and Shiroudi”
The same questions in other papers
iron atom · growth · Oryza sativa (rice)Results differ
35 papers in the same direction as this paper · 26 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- negative
- negative
58 papers more in this group
See all 62 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.