Abstract
Salinity is one of the major factors limiting crop production in an arid environment. Despite its global importance soybean production suffer the problems of salinity stress causing damages at plant development. So it is implacable to either search for salinity enhancement of soybean plants. Therefore, in the current study we try to clarify the mechanism that might be involved in the ameliorating effects of osmo-protectants such as proline and glycine betaine as well as, compost application on soybean plants grown under salinity stress. The experiment was conducted under greenhouse conditions at the Graduate School of Biosphere Science Laboratory of Hiroshima University, Japan in 2011. The experiment was designed as a spilt-split plot based on randomized complete block design with four replications. The treatments could be summarized as follows; (i) salinity concentrations (0 and 15 mM), (ii) compost treatments (0 and 24 t ha-1) and (iii) the exogenous, proline and glycine betaine concentrations (0 mM and 25 mM) for each. Results indicated that salinity stress induced reduction in growth and physiological aspects (dry weight per plant, chlorophyll content, N and K+ content) of soybean plant compared with those of the unstressed plants. On the other hand, salinity stress led to increases in the electrolyte leakage ratio, Na and proline contents. Special attention was paid to, the tolerance against salt stress was observed, the improvement of salt tolerance resulted from proline, glycine betaine and compost were accompanied with improved K+, and proline accumulation. While, significantly decreased electrolyte leakage ratio and Na+ content. These results clearly demonstrate that harmful effect of salinity could reduce on growth aspects of soybean. Consequently, exogenous osmoprotectants combine with compost will effectively solve seasonal salinity stress problem and are a good strategy to increase salinity resistance of soybean in the drylands.
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Claims 14
Claim · model-written summary
Salinity reduced soybean dry weight.
- Taxon
- soybean
Glycine maxe0 - Treatment
- salinity stresse0
- Outcome
- dry weight per plante0
- Direction
- reductione0
- Comparator
- unstressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that salinity stress induced reduction in growth and physiological aspects (dry weight per plant, chlorophyll content, N and K+ content) of soybean plant compared with those of the unstressed plants.”
Claim · model-written summary
Salinity reduced chlorophyll content.
- Taxon
- soybeanGlycine maxe0
- Treatment
- salinity stresse0
- Outcome
- chlorophyll contente0
- Direction
- reductione0
- Comparator
- unstressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that salinity stress induced reduction in growth and physiological aspects (dry weight per plant, chlorophyll content, N and K+ content) of soybean plant compared with those of the unstressed plants.”
Claim · model-written summary
Salinity reduced N content.
- Taxon
- soybeanGlycine maxe0
- Treatment
- salinity stresse0
- Outcome
- Ne0
- Direction
- reductione0
- Comparator
- unstressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that salinity stress induced reduction in growth and physiological aspects (dry weight per plant, chlorophyll content, N and K+ content) of soybean plant compared with those of the unstressed plants.”
Claim · model-written summary
Salinity reduced K+ content.
- Taxon
- soybeanGlycine maxe0
- Treatment
- salinity stresse0
- Outcome
- K+ contente0
- Direction
- reductione0
- Comparator
- unstressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that salinity stress induced reduction in growth and physiological aspects (dry weight per plant, chlorophyll content, N and K+ content) of soybean plant compared with those of the unstressed plants.”
Claim · model-written summary
Salinity increased electrolyte leakage ratio.
- Taxon
- soybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- electrolyte leakage ratioe0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand, salinity stress led to increases in the electrolyte leakage ratio, Na and proline contents.”
t0“soybean”
Claim · model-written summary
Salinity increased Na.
- Taxon
- soybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- Nae0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand, salinity stress led to increases in the electrolyte leakage ratio, Na and proline contents.”
t0“soybean”
Claim · model-written summary
Salinity increased proline contents.
- Taxon
- soybeanGlycine maxt0
- Treatment
- salinity stresse0
- Outcome
- proline contentse0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On the other hand, salinity stress led to increases in the electrolyte leakage ratio, Na and proline contents.”
t0“soybean”
Claim · model-written summary
proline improved salt tolerance.
- Taxon
- soybeanGlycine maxt0
- Treatment
- prolinee0
- Outcome
- salt tolerancee0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the improvement of salt tolerance resulted from proline, glycine betaine and compost were accompanied with improved K+, and proline accumulation.”
t0“soybean”
Claim · model-written summary
glycine betaine improved salt tolerance.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glycine betainee0
- Outcome
- salt tolerancee0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the improvement of salt tolerance resulted from proline, glycine betaine and compost were accompanied with improved K+, and proline accumulation.”
t0“soybean”
Claim · model-written summary
compost improved salt tolerance.
- Taxon
- soybeanGlycine maxt0
- Treatment
- composte0
- Outcome
- salt tolerancee0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the improvement of salt tolerance resulted from proline, glycine betaine and compost were accompanied with improved K+, and proline accumulation.”
t0“soybean”
Claim · model-written summary
Osmoprotectant and compost treatment improved K+ and proline accumulation.
- Taxon
- soybeanGlycine maxt0
- Treatment
- proline, glycine betaine and composte0
- Outcome
- K+, and proline accumulatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the improvement of salt tolerance resulted from proline, glycine betaine and compost were accompanied with improved K+, and proline accumulation.”
t0“soybean”
Claim · model-written summary
Osmoprotectant and compost treatment significantly decreased electrolyte leakage.
- Taxon
- soybeanGlycine maxt0
- Outcome
- electrolyte leakage ratioe0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While, significantly decreased electrolyte leakage ratio and Na+ content.”
t0“soybean”
Claim · model-written summary
Osmoprotectant and compost treatment significantly decreased Na+ content.
- Taxon
- soybeanGlycine maxt0
- Outcome
- Na+ contente0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While, significantly decreased electrolyte leakage ratio and Na+ content.”
t0“soybean”
Claim · model-written summary
Authors recommend exogenous osmoprotectants with compost for salinity resistance.
- Taxon
- soybeanGlycine maxe0
- Outcome
- increase salinity resistance of soybean in the drylandse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Consequently, exogenous osmoprotectants combine with compost will effectively solve seasonal salinity stress problem and are a good strategy to increase salinity resistance of soybean in the drylands.”
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See all 116 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.