Abstract
The impact of proline, methionine, and melatonin on cauliflower plants under drought stress is still unclear in the available publications. So, this research aims to study these biochemical compounds’ effects on cauliflower plants grown under well-irrigated and drought-stressed conditions. The obtained results showed that under drought-stressed conditions, foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area, leaf chlorophyll content, leaf relative water content (RWC), vitamin C, proline, total soluble sugar, reducing sugar, and non-reducing sugar compared to the untreated plants. These treatments also significantly increased curd height, curd diameter, curd freshness, and dry matter compared to untreated plants. Conversely, the phenolic-related enzymes including polyphenol oxidase (PPO), peroxidase (POD), and phenylalanine ammonia-lyase (PAL) were significantly reduced compared to the untreated plants. A similar trend was observed in glucosinolates, abscisic acid (ABA), malondialdehyde (MDA), and total phenols. Eventually, it can be concluded that the foliar application of proline, methionine, and melatonin can be considered a proper strategy for enhancing the growth performance and productivity of cauliflower grown under drought-stressed conditions.
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Claims 6
Claim · model-written summary
Foliar proline enhanced leaf area, chlorophyll, water content, vitamin C and sugars under drought.
- Taxon
- cauliflower plants
Brassica oleracea var. botrytist0 - Treatment
- prolinee0
- Outcome
- leaf area, leaf chlorophyll content, leaf relative water content (RWC)e0
- Direction
- enhancede0
- Qualifier
- under drought-stressed conditionse0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under drought-stressed conditions, foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area, leaf chlorophyll content, leaf relative water content (RWC), vitamin C, proline, total soluble sugar, reducing sugar, and non-reducing sugar compared to the untreated plants”
t0“cauliflower Plants”
Claim · model-written summary
Foliar methionine enhanced cauliflower leaf traits under drought.
- Taxon
- cauliflower plantsBrassica oleracea var. botrytist0
- Treatment
- methioninee0
- Outcome
- leaf area, leaf chlorophyll content, leaf relative water content (RWC)e0
- Direction
- enhancede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area, leaf chlorophyll content, leaf relative water content (RWC), vitamin C, proline, total soluble sugar, reducing sugar, and non-reducing sugar compared to the untreated plants”
t0“cauliflower Plants”
Claim · model-written summary
Foliar melatonin enhanced cauliflower leaf traits under drought.
- Taxon
- cauliflower plantsBrassica oleracea var. botrytist0
- Treatment
- melatonine0
- Outcome
- leaf area, leaf chlorophyll content, leaf relative water content (RWC)e0
- Direction
- enhancede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area, leaf chlorophyll content, leaf relative water content (RWC), vitamin C, proline, total soluble sugar, reducing sugar, and non-reducing sugar compared to the untreated plants”
t0“cauliflower Plants”
Claim · model-written summary
These foliar treatments increased curd height, diameter, freshness and dry matter.
- Taxon
- cauliflower plantsBrassica oleracea var. botrytist0
- Treatment
- These treatmentse0
- Outcome
- curd height, curd diameter, curd freshnesse0
- Direction
- increasede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These treatments also significantly increased curd height, curd diameter, curd freshness, and dry matter compared to untreated plants”
t0“cauliflower Plants”
Claim · model-written summary
These treatments reduced PPO, POD and PAL.
- Taxon
- cauliflower plantsBrassica oleracea var. botrytist0
- Treatment
- proline, methionine, and melatonine1
- Outcome
- polyphenol oxidase (PPO), peroxidase (POD), and phenylalanine ammonia-lyase (PAL)e0
- Direction
- reducede0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the phenolic-related enzymes including polyphenol oxidase (PPO), peroxidase (POD), and phenylalanine ammonia-lyase (PAL) were significantly reduced compared to the untreated plants”
t0“cauliflower Plants”
e1“foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area”
Claim · model-written summary
Glucosinolates, ABA, MDA and total phenols showed a similar reduction.
- Taxon
- cauliflower plantsBrassica oleracea var. botrytist0
- Treatment
- proline, methionine, and melatonine1
- Outcome
- glucosinolates, abscisic acid (ABA), malondialdehyde (MDA)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar trend was observed in glucosinolates, abscisic acid (ABA), malondialdehyde (MDA), and total phenols”
t0“cauliflower Plants”
e1“foliar application of proline, methionine, and melatonin significantly (p ≤ 0.05) enhanced leaf area”
The same questions in other papers
proline · physiology: water · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
methionine · physiology: water · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
melatonin · physiology: water · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
proline · physiology: antioxidant enzymes · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
methionine · physiology: antioxidant enzymes · Brassica oleracea (wild cabbage)Results agree
1 paper in the same direction as this paper
- positive
melatonin · physiology: antioxidant enzymes · Brassica oleracea (wild cabbage)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
melatonin · physiology: oxidative · Brassica oleracea (wild cabbage)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.