Abstract
Pea (Pisum sativum L.) is an important food crop in Tunisia, where calcareous soils represents the major limiting factor for agriculture production. In the present study a greenhouse experiment was conducted to assess the effects of direct and bicarbonate- induced iron deficiency on plant growth, chlorophyll fluorescence, photosynthesis, spad index and iron nutrition in two Tunisian pea genotypes (Pisum sativum L.). Plants were grown hydroponically and iron deficiency was induced for 3 weeks. Iron deficiency decreased all the above physiological parameters. The direct Fe deficiency is more drastic than bicarbonate- induced Fe deficiency. A close relationship between plant growth, photosynthesis and SPAD index was observed. Fe use efficiency for plant growth and Fe use efficiency for photosynthesis discriminates clearly the studied genotypes and seems to be the main reason of the tolerance of Kelvedon, as compared to Lincoln.
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Claims 4
Claim · model-written summary
Iron deficiency decreased pea growth, chlorophyll fluorescence, photosynthesis, SPAD index and iron nutrition.
- Taxon
- Pea
Lathyrus oleraceust0 - Treatment
- Iron deficiencye0
- Outcome
- plant growth, chlorophyll fluorescence, photosynthesis, spad index and iron nutritione1
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Iron deficiency decreased all the above physiological parameters.”
t0“Pea”
e1“plant growth, chlorophyll fluorescence, photosynthesis, spad index and iron nutrition”
Claim · model-written summary
Direct Fe deficiency was more damaging than bicarbonate-induced Fe deficiency.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- direct Fe deficiencye0
- Outcome
- more drastice0
- Direction
- more drastice0
- Comparator
- bicarbonate- induced Fe deficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The direct Fe deficiency is more drastic than bicarbonate- induced Fe deficiency.”
t0“Pea”
Claim · model-written summary
Pea growth, photosynthesis and SPAD index were closely related.
- Taxon
- PeaLathyrus oleraceust0
- Organ / stage
- plante0
- Outcome
- plant growth, photosynthesis and SPAD indexe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A close relationship between plant growth, photosynthesis and SPAD index was observed.”
t0“Pea”
Claim · model-written summary
Fe-use efficiency for growth and photosynthesis distinguished the pea genotypes and was proposed to explain Kelvedon tolerance versus Lincoln.
- Taxon
- PeaLathyrus oleraceust0
- Material
- Kelvedone0
- Outcome
- tolerancee0
- Qualifier
- Fe use efficiency for plant growth and Fe use efficiency for photosynthesise0
- Comparator
- Lincolne0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe use efficiency for plant growth and Fe use efficiency for photosynthesis discriminates clearly the studied genotypes and seems to be the main reason of the tolerance of Kelvedon, as compared to Lincoln.”
t0“Pea”
The same questions in other papers
iron atom · physiology: photosynthesis · Lathyrus oleraceus (pea)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- positive
- positive
1 paper more in this group
See all 5 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.