Abstract
Here, we grow two different varieties of lentil (lentil-2009 and lentil-93) under different drought levels and with different applications of melatonin. Increasing the levels of soil water deficit significantly decreased numerous morphological and biochemical characteristics, including shoot length, total chlorophyll content, and transpiration rate, in both varieties of lentil. Contrastingly, drought stress increased the concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2), and electrolyte leakage, an indicator of oxidative damage to membrane-bound organelles. The activities of enzymatic antioxidants and osmolytes were initially increased up to a drought level of 80% water field capacity (WFC) but gradually decreased with higher levels of drought stress (60% WFC) in the soil. At the same time, the results also showed that the lentil-2009 is more tolerant to drought stress than lentil-93. The negative impact of drought stress can be overcome by the application of melatonin. Melatonin increased plant growth and biomass, photosynthetic pigments, gas exchange characteristics, and enhanced the activities of various enzymatic and non-enzymatic antioxidants and proline content by decreasing oxidative stress. We conclude that foliar application of melatonin offers new possibilities for promoting lentil drought tolerance.
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Claims 9
Claim · model-written summary
Soil water deficit significantly decreased shoot length, total chlorophyll content and transpiration rate in both lentil varieties.
- Taxon
- lentil
Lens culinarise2 - Material
- lentil-2009 and lentil-93e2
- Treatment
- soil water deficite1
- Outcome
- shoot length, total chlorophyll content, and transpiration ratee1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Increasing the levels of soil water deficit significantly decreased numerous morphological and biochemical characteristics, including shoot length, total chlorophyll content, and transpiration rate, in both varieties of lentil”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Drought stress increased malondialdehyde, hydrogen peroxide and electrolyte leakage in lentil.
- Taxon
- lentilLens culinarise2
- Treatment
- drought stresse4
- Outcome
- concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2), and electrolyte leakagee4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“drought stress increased the concentrations of malondialdehyde (MDA) and hydrogen peroxide (H2O2), and electrolyte leakage”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Enzymatic antioxidant and osmolyte activities increased in lentil up to a drought level of 80% water field capacity.
- Taxon
- lentilLens culinarise2
- Treatment
- a drought level of 80% water field capacity (WFC)e3
- Outcome
- activities of enzymatic antioxidants and osmolytese3
- Direction
- increasede3
- Qualifier
- initiallye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The activities of enzymatic antioxidants and osmolytes were initially increased up to a drought level of 80% water field capacity (WFC) but gradually decreased with higher levels of drought stress (60% WFC) in the soil”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Enzymatic antioxidant and osmolyte activities decreased in lentil at higher drought levels of 60% water field capacity.
- Taxon
- lentilLens culinarise2
- Treatment
- higher levels of drought stress (60% WFC)e3
- Outcome
- activities of enzymatic antioxidants and osmolytese3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The activities of enzymatic antioxidants and osmolytes were initially increased up to a drought level of 80% water field capacity (WFC) but gradually decreased with higher levels of drought stress (60% WFC) in the soil”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Lentil-2009 is more tolerant to drought stress than lentil-93.
- Taxon
- lentilLens culinarise2
- Material
- lentil-2009e5
- Outcome
- tolerant to drought stresse5
- Direction
- more tolerante5
- Comparator
- lentil-93e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the lentil-2009 is more tolerant to drought stress than lentil-93”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Melatonin application can overcome the negative impact of drought stress on lentil.
- Taxon
- lentilLens culinarise2
- Treatment
- application of melatonine6
- Outcome
- negative impact of drought stresse6
- Direction
- overcomee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The negative impact of drought stress can be overcome by the application of melatonin”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Melatonin increased lentil plant growth and biomass, photosynthetic pigments and gas exchange characteristics.
- Taxon
- lentilLens culinarise2
- Treatment
- Melatonine7
- Outcome
- plant growth and biomass, photosynthetic pigments, gas exchange characteristicse7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Melatonin increased plant growth and biomass, photosynthetic pigments, gas exchange characteristics, and enhanced the activities of various enzymatic and non-enzymatic antioxidants and proline content by decreasing oxidative stress”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Melatonin enhanced antioxidant activities and proline content in lentil by decreasing oxidative stress.
- Taxon
- lentilLens culinarise2
- Treatment
- Melatonine7
- Outcome
- activities of various enzymatic and non-enzymatic antioxidants and proline contente7
- Direction
- enhancede7
- Qualifier
- by decreasing oxidative stresse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Melatonin increased plant growth and biomass, photosynthetic pigments, gas exchange characteristics, and enhanced the activities of various enzymatic and non-enzymatic antioxidants and proline content by decreasing oxidative stress”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
Claim · model-written summary
Foliar application of melatonin offers new possibilities for promoting lentil drought tolerance.
- Taxon
- lentilLens culinarise0
- Treatment
- foliar application of melatonine0
- Outcome
- promoting lentil drought tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of melatonin offers new possibilities for promoting lentil drought tolerance”
e2“two different varieties of lentil (lentil-2009 and lentil-93)”
The same questions in other papers
drought · physiology: osmolytes · Lens culinaris (lentil)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →drought · physiology: oxidative · Lens culinaris (lentil)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.