Abstract
Vermicompost can play an effective and important role in plant growth and development and also in reducing harmful effects of various environmental stresses on plants. The vermicompost fertilizer application was evaluated for the growth, physiological and biochemical parameters of lettuce (Lactuca sativa var. crispa) plants under drought stress conditions. Tests were carried out at different levels of vermicompost (0, 2.5 and 5%) and drought stress [no stress, moderate drought, and severe drought at 100, 50 and 25% of field capacity]. In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions. Malondialdehyde (MDA) content and superoxide dismutase (SOD) and catalase (CAT) activities increased while plants under drought stress conditions. Application of vermicompost caused higher SOD and CAT enzyme activities and lower MDA content under drought stress. Enhancement in antioxidant enzyme activities as a result of vermicompost destroyed reactive oxygen species. Therefore, application of vermicompost under moderate and severe drought stress decreased MDA content in lettuce plant cells. Data indicated a positive effect of the vermicompost on the growth of lettuce under drought stress conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Vermicompost at 2.5 or 5% increased shoot height, shoot fresh weight and relative water content of lettuce under moderate and severe drought, compared with 0% vermicompost.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- vermicompost at 2.5 or 5%e1
- Outcome
- shoot height, shoot fresh weight, relative water contente1
- Direction
- highere1
- Qualifier
- under moderate and severe drought stress conditionse1
- Comparator
- control (vermicompost at 0%)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
Claim · model-written summary
Vermicompost at 2.5 or 5% increased stomatal conductance and chlorophyll a and b of lettuce under moderate and severe drought, compared with 0% vermicompost.
- Taxon
- lettuceLactuca sativae1
- Treatment
- vermicompost at 2.5 or 5%e1
- Outcome
- stomatal conductance, chlorophyll a, chlorophyll be1
- Direction
- highere1
- Qualifier
- under moderate and severe drought stress conditionse1
- Comparator
- control (vermicompost at 0%)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
Claim · model-written summary
Vermicompost at 2.5 or 5% increased total chlorophyll and carotenoid contents of lettuce under moderate and severe drought, compared with 0% vermicompost.
- Taxon
- lettuceLactuca sativae1
- Treatment
- vermicompost at 2.5 or 5%e1
- Outcome
- total chlorophyll and carotenoid contentse1
- Direction
- highere1
- Qualifier
- under moderate and severe drought stress conditionse1
- Comparator
- control (vermicompost at 0%)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
Claim · model-written summary
Drought stress increased malondialdehyde (MDA) content in lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- drought stresse2
- Outcome
- Malondialdehyde (MDA) contente2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
e2“Malondialdehyde (MDA) content and superoxide dismutase (SOD) and catalase (CAT) activities increased while plants under drought stress conditions”
Claim · model-written summary
Drought stress increased superoxide dismutase (SOD) and catalase (CAT) activities in lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- drought stresse2
- Outcome
- superoxide dismutase (SOD) and catalase (CAT) activitiese2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
e2“Malondialdehyde (MDA) content and superoxide dismutase (SOD) and catalase (CAT) activities increased while plants under drought stress conditions”
Claim · model-written summary
Vermicompost under drought stress increased SOD and CAT enzyme activities in lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Application of vermicomposte3
- Outcome
- SOD and CAT enzyme activitiese3
- Direction
- highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
e3“Application of vermicompost caused higher SOD and CAT enzyme activities and lower MDA content under drought stress”
Claim · model-written summary
Vermicompost under drought stress decreased MDA content in lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Application of vermicomposte3
- Outcome
- MDA contente3
- Direction
- lowere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
e3“Application of vermicompost caused higher SOD and CAT enzyme activities and lower MDA content under drought stress”
Claim · model-written summary
Vermicompost-enhanced antioxidant enzyme activities destroyed reactive oxygen species in drought-stressed lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- vermicomposte4
- Outcome
- reactive oxygen speciese4
- Qualifier
- Enhancement in antioxidant enzyme activitiese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In comparison to control (vermicompost at 0%), lettuce plants treated with vermicompost at 2.5 or 5% had higher shoot height, shoot fresh weight, relative water content, stomatal conductance, chlorophyll a, chlorophyll b , total chlorophyll and carotenoid contents under moderate and severe drought stress conditions”
e4“Enhancement in antioxidant enzyme activities as a result of vermicompost destroyed reactive oxygen species”
The same questions in other papers
drought · physiology: antioxidant enzymes · Lactuca sativa (garden lettuce)Results differ
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
fertilization · physiology: pigments · Lactuca sativa (garden lettuce)Results differ
36 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- negative
37 papers more in this group
See all 41 papers →fertilization · physiology: gas exchange · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
fertilization · physiology: oxidative · Lactuca sativa (garden lettuce)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
4 papers more in this group
See all 8 papers →drought · physiology: oxidative · Lactuca sativa (garden lettuce)Results agree
2 papers in the same direction as this paper
- negative
- negative
fertilization · physiology: antioxidant enzymes · Lactuca sativa (garden lettuce)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
fertilization · physiology: water · Lactuca sativa (garden lettuce)Results agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 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.