Abstract
Waterlogging is one of the serious abiotic stresses that inhibits crop growth and reduces productivity. Therefore, investigating efficient waterlogging mitigation measures has both theoretical and practical significance. The objectives of the present research were to examine the efficiency of melatonin and KNO3 seed soaking and foliar application on alleviating the waterlogging inhibited growth performance of maize seedlings. In this study, 100 µM melatonin and different levels (0.25, 0.50 and 0.75 g) of potassium nitrate (KNO3) were used in seed soaking and foliar applications. For foliar application, treatments were applied at the 7th leaf stage one week after the imposition of waterlogging stress. The results showed that melatonin with KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions. However, the application of melatonin with KNO3 treatments increased plant growth characteristics, chlorophyll content, and the net photosynthetic rate at a variable rate under waterlogging stress. Furthermore, melatonin with KNO3 treatments significantly reduced the accumulation of hydrogen peroxide (H2O2) and malondialdehyde (MDA), and it decreased the activity of pyruvate decarboxylase and alcohol dehydrogenase, while increasing enzymatic activities and soluble protein content of maize seedlings under waterlogging stress conditions. Overall, our results indicated that seed soaking with 100 µM melatonin and 0.50 g KNO3 was the most effective treatment that significantly improved the plant growth characteristics, chlorophyll content, photosynthetic rate, and enzymatic activity of maize seedling under waterlogging 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 4
Claim · model-written summary
Melatonin with KNO3 improved maize seedling growth under waterlogging.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin with KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions”
Claim · model-written summary
Melatonin with KNO3 improved biochemical parameters under waterlogging.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“melatonin with KNO3 significantly improved the plant growth and biochemical parameters of maize seedlings under waterlogging stress conditions”
Claim · model-written summary
Melatonin with KNO3 increased enzymatic activities and soluble protein content.
- Treatment
- melatonin with KNO3 treatmentse2
- Outcome
- enzymatic activities and soluble protein contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while increasing enzymatic activities and soluble protein content of maize seedlings under waterlogging stress conditions”
e2“melatonin with KNO3 treatments significantly reduced the accumulation of hydrogen peroxide (H2O2) and malondialdehyde (MDA)”
Claim · model-written summary
Seed soaking with 100 µM melatonin and 0.50 g KNO3 was most effective for improving growth, chlorophyll, photosynthesis and enzyme activity.
- Treatment
- seed soaking with 100 µM melatonin and 0.50 g KNO3e0
- Outcome
- plant growth characteristics, chlorophyll content, photosynthetic rate, and enzymatic activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed soaking with 100 µM melatonin and 0.50 g KNO3 was the most effective treatment that significantly improved the plant growth characteristics, chlorophyll content, photosynthetic rate, and enzymatic activity of maize seedling under waterlogging conditions”
The same questions in other papers
melatonin · physiology: osmolytes · Zea mays (maize)Results differ
7 papers in the same direction as this paper
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →melatonin · growth · Zea mays (maize)Results differ
27 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 papers →potassium nitrate · growth · Zea mays (maize)Positive and negative results
14 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
15 papers more in this group
See all 19 papers →melatonin · physiology: photosynthesis · Zea mays (maize)Positive and negative results
22 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 papers →potassium nitrate · physiology: osmolytes · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
potassium nitrate · physiology: photosynthesis · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
seed treatment · physiology: photosynthesis · Zea mays (maize)Positive and negative results
16 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
14 papers more in this group
See all 18 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.