Abstract
Iron deficiency is a major production constraint of upland rice in the tropics despite is abundance in the soil. This investigation aimed to explicate the effect of iron deficiency on the growth, development, grain yield and its attributes of some selected upland rice in the rainforest. Field experiments were established at Africa Rice sub-Station, Ibadan, Nigeria. The treatments consisted of 35 upland rice genotypes and availability of iron in the soil (Fe-sufficient and Fe-deficient). The treatments were arranged in alpha lattice design with three replications. It was observed that upland rice sown in iron (Fe) deficient soils had significantly lower growth (plant height, number of tillers and seedling vigor), flowered later, with significantly lower yield attributes (1000 grain weight, filled grain) and grain yield than those sown in Fe-sufficient soils. Conversely, the number of unfilled grains were significantly higher in upland rice sown in Fe-deficient than those in sufficient soils. Percentage yield loss was in the range 98.00% to 22.95% for China best and Faro 65 respectively. Genotypes were identified to be tolerant (Faro 65, NERICA 3 and IRAT 109) and susceptible (Ofada 2, NERICA 5 and China Best) to Fe-deficiency based on their percentage grain yield loss. These evidences suggested that despite the increased phenology of upland rice sown in Fe-deficient soils their reproductive growth was suppressed through increased number of unfilled grains as witnessed in China Best and Faro 64.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Fe-deficient soil reduced rice plant height, tiller number and seedling vigor.
- Taxon
- upland rice
Oryza sativae0 - Treatment
- iron (Fe) deficient soilse0
- Outcome
- plant height, number of tillers and seedling vigore0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upland rice sown in iron (Fe) deficient soils had significantly lower growth (plant height, number of tillers and seedling vigor)”
Claim · model-written summary
Fe-deficient rice flowered later.
- Taxon
- upland riceOryza sativae0
- Treatment
- iron (Fe) deficient soilse0
- Outcome
- flowerede0
- Direction
- latere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upland rice sown in iron (Fe) deficient soils had significantly lower growth (plant height, number of tillers and seedling vigor), flowered later”
Claim · model-written summary
Fe-deficient rice had lower thousand-grain weight and filled grain number.
Not reportedTaxonTreatment
Verbatim
e0“with significantly lower yield attributes (1000 grain weight, filled grain) and grain yield than those sown in Fe-sufficient soils”
Claim · model-written summary
Fe-deficient rice had lower grain yield than Fe-sufficient rice.
Not reportedTaxonTreatment
Verbatim
e0“with significantly lower yield attributes (1000 grain weight, filled grain) and grain yield than those sown in Fe-sufficient soils”
Claim · model-written summary
Fe-deficient rice had more unfilled grains.
- Taxon
- upland riceOryza sativae0
- Treatment
- Fe-deficiente0
- Outcome
- number of unfilled grainse0
- Direction
- highere0
- Comparator
- sufficient soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of unfilled grains were significantly higher in upland rice sown in Fe-deficient than those in sufficient soils”
Claim · model-written summary
China best had 98.00% yield loss under Fe deficiency.
Not reportedTaxon
Verbatim
e0“Percentage yield loss was in the range 98.00% to 22.95% for China best and Faro 65 respectively”
Claim · model-written summary
Faro 65 had 22.95% yield loss under Fe deficiency.
Not reportedTaxon
Verbatim
e0“Percentage yield loss was in the range 98.00% to 22.95% for China best and Faro 65 respectively”
Claim · model-written summary
Faro 65, NERICA 3 and IRAT 109 were identified as Fe-deficiency tolerant.
Not reportedTaxon
Verbatim
e0“Genotypes were identified to be tolerant (Faro 65, NERICA 3 and IRAT 109)”
Claim · model-written summary
Ofada 2, NERICA 5 and China Best were identified as Fe-deficiency susceptible.
Not reportedTaxon
Verbatim
e0“susceptible (Ofada 2, NERICA 5 and China Best) to Fe-deficiency based on their percentage grain yield loss”
The same questions in other papers
iron atom · yield · Oryza sativa (rice)Results differ
56 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- no effect
- negative
67 papers more in this group
See all 71 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.