Abstract
ABSTRACT This study investigated the interactive effects of drought stress with biochar on plant growth, the physiological and biochemical attributes of soybean seedlings. A pot trial tested the effect of amending a loamy sandy soil with biochar at three doses: 0%, 3% and 6% in the alleviation of drought stress, imposed by adjusting soil moisture content at three levels (in terms of soil field capacity, FC): 100% FC, 75% FC and 50% FC. Water deficit negatively influenced the growth of soybean seedlings and chlorophyll content of leaves, particularly in non‐amended plants whereas biochar amendment boosted the growth and chlorophyll content, particularly under drought stress. Drought stress elevated malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), proline, sucrose and abscisic acid (ABA) contents as well as the antioxidant enzyme activity [peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD)] of soybean leaves but reduced the contents of indole acetic acid (IAA) and gibberellic acid (GA); biochar amendment counteracted the impact of drought. The findings of the study indicate that biochar amendment can enhance soybean growth by modulating the plant physiology and biochemistry under drought stress.
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Claims 8
Claim · model-written summary
Water deficit negatively influenced the growth of soybean seedlings and the chlorophyll content of leaves.
- Taxon
- soybean seedlings
Glycine maxt0 - Treatment
- Water deficite1
- Outcome
- growth of soybean seedlings and chlorophyll content of leavese1
- Direction
- negatively influencede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“Water deficit negatively influenced the growth of soybean seedlings and chlorophyll content of leaves”
Claim · model-written summary
Biochar amendment boosted growth and chlorophyll content of soybean seedlings, particularly under drought stress.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- biochar amendmente1
- Outcome
- growth and chlorophyll contente1
- Direction
- boostede1
- Qualifier
- particularly under drought stresse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“biochar amendment boosted the growth and chlorophyll content, particularly under drought stress”
Claim · model-written summary
Drought stress elevated malondialdehyde, hydrogen peroxide and proline in soybean leaves.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- Drought stresse1
- Outcome
- malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), prolinee1
- Direction
- elevatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“Drought stress elevated malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), proline”
Claim · model-written summary
Drought stress elevated sucrose and abscisic acid contents in soybean leaves.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- Drought stresse1
- Outcome
- sucrose and abscisic acid (ABA) contentse2
- Direction
- elevatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“Drought stress elevated”
e2“sucrose and abscisic acid (ABA) contents”
Claim · model-written summary
Drought stress elevated antioxidant enzyme activity (POD, CAT, SOD) in soybean leaves.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- Drought stresse1
- Outcome
- antioxidant enzyme activity [peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD)]e2
- Direction
- elevatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“Drought stress elevated”
e2“the antioxidant enzyme activity [peroxidase (POD), catalase (CAT) and superoxide dismutase (SOD)]”
Claim · model-written summary
Drought stress reduced the contents of indole acetic acid and gibberellic acid in soybean leaves.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- Drought stresse1
- Outcome
- contents of indole acetic acid (IAA) and gibberellic acid (GA)e2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“Drought stress elevated”
e2“reduced the contents of indole acetic acid (IAA) and gibberellic acid (GA)”
Claim · model-written summary
Biochar amendment counteracted the impact of drought on soybean seedlings.
- Taxon
- soybean seedlingsGlycine maxt0
- Treatment
- biochar amendmente1
- Outcome
- impact of droughte1
- Direction
- counteractede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean seedlings”
e1“biochar amendment counteracted the impact of drought”
Claim · model-written summary
The authors conclude that biochar amendment can enhance soybean growth by modulating plant physiology and biochemistry under drought stress.
- Taxon
- soybeanGlycine maxe1
- Treatment
- biochar amendmente1
- Outcome
- soybean growthe1
- Qualifier
- modulating the plant physiology and biochemistrye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“biochar amendment can enhance soybean growth by modulating the plant physiology and biochemistry under drought stress”
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