Abstract
The germination and growth responses of two legumes, Vigna luteola and Vigna vexillata, to different salinity levels were compared in laboratory experiments. Vigna luteola seeds tolerated a higher level of salinity and germinated significantly better at high salinities than corresponding results for V. vexillata. Seedlings of V. luteola exhibited a significant increase in dry weight at 10% sea water followed by a significant decrease at 30% seawater and above. Vigna vexillata seedlings showed a gradual decrease in dry weight with increased salinity. Except at 0% seawater, dry weights of V. luteola seedlings were significantly higher than those of V. vexillata at all salinities tested. The proportion of root weight to total plant dry weight increased with increased salinity in V. luteola; the reverse was the case in V. vexillata. In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents. While the sodium content of the shoot of V. vexillata was higher than that of V. luteola, the amount in the roots of V. luteola was higher. The potassium and calcium contents were higher in V. luteola than in V. vexillata and the sodium to potassium ratio values were lower in V. luteola than in V. vexillata. The results are compared with those of other legumes and discussed in relation to the habitats of the species, the characteristics of halophytes, and the uses which these legumes may have in salt-enriched lands. Key words: salinity, tolerance, germination, growth, Vigna.
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Claims 14
Claim · model-written summary
V. luteola germinated better at high salinity than V. vexillata.
- Taxon
- Vigna luteola
_(6360549829).jpg?width=60)
Vigna luteolae0 - Treatment
- salinitye0
- Outcome
- germinatede0
- Direction
- bettere0
- Comparator
- V. vexillatae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(6360549829).jpg?width=500)
Verbatim
e0“Vigna luteola seeds tolerated a higher level of salinity and germinated significantly better at high salinities than corresponding results for V. vexillata”
Claim · model-written summary
V. luteola tolerated higher salinity.
- Taxon
- Vigna luteolaVigna luteolae0
- Treatment
- salinitye0
- Outcome
- level of salinitye0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vigna luteola seeds tolerated a higher level of salinity”
Claim · model-written summary
V. luteola dry weight increased at 10% sea water.
- Taxon
- V. luteolaVigna luteolae0
- Outcome
- dry weighte0
- Direction
- increasee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings of V. luteola exhibited a significant increase in dry weight at 10% sea water”
Claim · model-written summary
V. luteola dry weight decreased at 30% seawater and above.
- Taxon
- V. luteolaVigna luteolat0
- Direction
- decreasee0
Not reportedTreatmentOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seedlings of V. luteola exhibited a significant increase in dry weight at 10% sea water”
e0“a significant decrease at 30% seawater and above”
Claim · model-written summary
V. vexillata dry weight decreased with salinity.
- Taxon
- Vigna vexillata
.jpg?width=60)
Vigna vexillatae0 - Treatment
- salinitye0
- Outcome
- dry weighte0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Vigna vexillata seedlings showed a gradual decrease in dry weight with increased salinity”
Claim · model-written summary
V. luteola had higher dry weight at nonzero salinities.
- Taxon
- V. luteolaVigna luteolae0
- Outcome
- dry weightse0
- Direction
- highere0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weights of V. luteola seedlings were significantly higher than those of V. vexillata at all salinities tested”
Claim · model-written summary
V. luteola root weight proportion increased with salinity.
- Taxon
- V. luteolaVigna luteolae0
- Treatment
- salinitye0
- Outcome
- proportion of root weight to total plant dry weighte0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The proportion of root weight to total plant dry weight increased with increased salinity in V. luteola”
Claim · model-written summary
V. vexillata root weight proportion declined with salinity.
- Taxon
- V. vexillataVigna vexillatae0
Not reportedTreatmentOutcomeDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the reverse was the case in V. vexillata”
Claim · model-written summary
V. luteola sodium content increased with salinity.
- Taxon
- Vigna luteolaVigna luteolat0
- Treatment
- increased salinitye0
- Outcome
- sodium contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”
Claim · model-written summary
V. luteola potassium decreased with salinity.
- Taxon
- Vigna luteolaVigna luteolat0
- Treatment
- increased salinitye0
- Outcome
- potassiume0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”
Claim · model-written summary
V. luteola calcium contents decreased with salinity.
- Taxon
- Vigna luteolaVigna luteolat0
- Treatment
- increased salinitye0
- Outcome
- calcium contentse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”
Claim · model-written summary
V. vexillata sodium content increased with salinity.
- Taxon
- Vigna vexillataVigna vexillatat0
- Treatment
- increased salinitye0
- Outcome
- sodium contente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”
Claim · model-written summary
V. vexillata potassium decreased with salinity.
- Taxon
- Vigna vexillataVigna vexillatat0
- Treatment
- increased salinitye0
- Outcome
- potassiume0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”
Claim · model-written summary
V. vexillata calcium contents decreased with salinity.
- Taxon
- Vigna vexillataVigna vexillatat0
- Treatment
- increased salinitye0
- Outcome
- calcium contentse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Vigna luteola and Vigna vexillata”
e0“In both species, increased salinity resulted in increased sodium content but decreased potassium and calcium contents”