Abstract
This investigation was carried out to assess the combined effect of salt stress and drought on physiological and biochemical traits in wheat (Triticum aestivum L.) varieties so as to deduce the probable mechanism of stress tolerance in these varieties. Two salt tolerant (Kharchia 65 and KRL 210) and two salt sensitive (HD 2851 and HD 2009) wheat varieties were subjected to salt (50 mM and 100 mM NaCl) and drought (25% and 50% water deficit) stresses alone as well as in combination to study the interactive effects of salt × drought stresses under pot house conditions at seedling stage. The data recorded on physiological (membrane injury, relative water content, chlorophyll content, Na+, K+, Cl- and K+/Na+), biochemical (total soluble sugars and proline) and yield (number of tillers, productive tillers, biomass, and 1000 seed weight) attributes indicated the effect of salt and drought stresses in the studied varieties. These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected. The sensitive varieties HD 2851 and HD 2009 accumulated the highest Na+ and Cl+ content, whereas Kharchia 65 (tolerant) accumulated the lowest amount of these ions. All the varieties, however, showed increased accumulation of compatible solutes (total soluble sugars and proline) with inclined stress which helped in osmotic adjustment. Consistent and significant reductions were observed in number of tillers as well as in productive tillers with every successive increase in salt and drought stresses. Yield in terms of 1000 seed weight followed the trend: 34.51 g in Kharchia 65>28.52 g in KRL 210>24.89 g in HD 2009>24.55 g in HD 2851.
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Claims 15
Claim · model-written summary
Salt and drought stress reduced chlorophyll content in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)
Triticum aestivumt0 - Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- chlorophyll contente0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
Salt and drought stress reduced K+ content in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- K+ contente0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
Salt and drought stress reduced number of tillers in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- number of tillerse0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
Salt and drought stress reduced number of productive tillers in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- number of productive tillerse0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
Salt and drought stress reduced biomass in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- biomasse0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
Salt and drought stress reduced yield in sensitive wheat varieties.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- sensitive varietiese0
- Treatment
- These stressese0
- Outcome
- yielde0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“These stresses caused a significant decline in chlorophyll content, K+ content, number of tillers, number of productive tillers, biomass and yield in sensitive varieties, while the tolerant ones were least affected.”
Claim · model-written summary
HD 2851 had highest Na+ and Cl+ content.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- HD 2851e0
- Outcome
- Na+ and Cl+ contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“The sensitive varieties HD 2851 and HD 2009 accumulated the highest Na+ and Cl+ content, whereas Kharchia 65 (tolerant) accumulated the lowest amount of these ions.”
Claim · model-written summary
HD 2009 had highest Na+ and Cl+ content.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- HD 2009e0
- Outcome
- Na+ and Cl+ contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“The sensitive varieties HD 2851 and HD 2009 accumulated the highest Na+ and Cl+ content, whereas Kharchia 65 (tolerant) accumulated the lowest amount of these ions.”
Claim · model-written summary
Kharchia 65 had lowest Na+ and Cl+ content.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- Kharchia 65e0
- Outcome
- Na+ and Cl+ contente0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“The sensitive varieties HD 2851 and HD 2009 accumulated the highest Na+ and Cl+ content, whereas Kharchia 65 (tolerant) accumulated the lowest amount of these ions.”
Claim · model-written summary
Wheat varieties accumulated more total soluble sugars and proline with increasing stress.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- inclined stresse0
- Outcome
- total soluble sugars and prolinee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“All the varieties, however, showed increased accumulation of compatible solutes (total soluble sugars and proline) with inclined stress which helped in osmotic adjustment.”
Claim · model-written summary
Successive salt and drought stress increases reduced tiller and productive tiller numbers.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Treatment
- salt and drought stressese0
- Outcome
- number of tillers as well as in productive tillerse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“Consistent and significant reductions were observed in number of tillers as well as in productive tillers with every successive increase in salt and drought stresses.”
Claim · model-written summary
Kharchia 65 had 1000 seed weight of 34.51 g.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- Kharchia 65e0
- Outcome
- 1000 seed weighte0
- Value
- 34.51 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“Yield in terms of 1000 seed weight followed the trend: 34.51 g in Kharchia 65>28.52 g in KRL 210>24.89 g in HD 2009>24.55 g in HD 2851.”
Claim · model-written summary
KRL 210 had 1000 seed weight of 28.52 g.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- KRL 210e0
- Outcome
- 1000 seed weighte0
- Value
- 28.52 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“Yield in terms of 1000 seed weight followed the trend: 34.51 g in Kharchia 65>28.52 g in KRL 210>24.89 g in HD 2009>24.55 g in HD 2851.”
Claim · model-written summary
HD 2009 had 1000 seed weight of 24.89 g.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- HD 2009e0
- Outcome
- 1000 seed weighte0
- Value
- 24.89 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“Yield in terms of 1000 seed weight followed the trend: 34.51 g in Kharchia 65>28.52 g in KRL 210>24.89 g in HD 2009>24.55 g in HD 2851.”
Claim · model-written summary
HD 2851 had 1000 seed weight of 24.55 g.
- Taxon
- wheat (Triticum aestivum)Triticum aestivumt0
- Material
- HD 2851e0
- Outcome
- 1000 seed weighte0
- Value
- 24.55 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat (Triticum aestivum) varieties”
e0“Yield in terms of 1000 seed weight followed the trend: 34.51 g in Kharchia 65>28.52 g in KRL 210>24.89 g in HD 2009>24.55 g in HD 2851.”
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See all 632 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.