Abstract
Plant growth promoting substances (PGPS) improve plant performance through modulation of its growth and yield. To study the possible role of PGPS maize was subjected to various PGPS Viz; kinetin (30 ppm), humic acid (2%), 'Moringa' leaves extract (MLE) (2%), ascorbic acid (2%), Salicylic acid (2%), 'neem' seed powder (NSP) extract (2%) and water spray (control) at 6 leave and 8 leave stage. We found that foliar application of kinetin, humic acid, MLE and ascorbic acid remarkably (p<=0.05) improved growth, yield and quality attributes of maize while salicylic acid and NSP extract application was not so much promotive in action compared to control (water spray). MLE enhanced crop growth rate and number of leaves per plant while maximum leaf area, 1000-grain weight, grain and biological yield as well as grain protein and starch contents were recoded where ascorbic acid was applied. However, plant height and total phenolic content were highest in plants treated with humic acid. So, all tested PGPS were variable in their effect, however, they improved the plant performance and may be applied to improve growth and yield of maize.
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Claims 13
Claim · model-written summary
Kinetin improved maize growth, yield and quality relative to water spray.
- Treatment
- kinetine0
- Outcome
- growth, yield and quality attributese0
- Direction
- improvede0
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of kinetin, humic acid, MLE and ascorbic acid remarkably (p<=0.05) improved growth, yield and quality attributes of maize”
e1“water spray (control)”
Claim · model-written summary
Humic acid improved maize growth, yield and quality relative to water spray.
- Treatment
- humic acide0
- Outcome
- growth, yield and quality attributese0
- Direction
- improvede0
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of kinetin, humic acid, MLE and ascorbic acid remarkably (p<=0.05) improved growth, yield and quality attributes of maize”
e1“water spray (control)”
Claim · model-written summary
Moringa leaf extract improved maize growth, yield and quality relative to water spray.
- Treatment
- MLEe0
- Outcome
- growth, yield and quality attributese0
- Direction
- improvede0
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of kinetin, humic acid, MLE and ascorbic acid remarkably (p<=0.05) improved growth, yield and quality attributes of maize”
e1“water spray (control)”
e2“'Moringa' leaves extract (MLE) (2%)”
Claim · model-written summary
Ascorbic acid improved maize growth, yield and quality relative to water spray.
- Treatment
- ascorbic acide0
- Outcome
- growth, yield and quality attributese0
- Direction
- improvede0
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of kinetin, humic acid, MLE and ascorbic acid remarkably (p<=0.05) improved growth, yield and quality attributes of maize”
e1“water spray (control)”
Claim · model-written summary
Salicylic acid was less promotive for maize performance than the effective treatments relative to water control.
- Treatment
- salicylic acide0
- Outcome
- promotive in actione0
- Direction
- not so much promotivee0
- Comparator
- control (water spray)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“salicylic acid and NSP extract application was not so much promotive in action compared to control (water spray)”
t0“maize”
Claim · model-written summary
Neem seed powder extract was less promotive for maize performance than the effective treatments relative to water control.
- Treatment
- NSP extracte0
- Outcome
- promotive in actione0
- Direction
- not so much promotivee0
- Comparator
- control (water spray)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“salicylic acid and NSP extract application was not so much promotive in action compared to control (water spray)”
t0“maize”
Claim · model-written summary
Moringa leaf extract raised maize crop growth rate and leaf number.
- Treatment
- MLEe0
- Outcome
- crop growth rate and number of leaves per plante0
- Direction
- enhancede0
- Comparator
- water spray (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“MLE enhanced crop growth rate and number of leaves per plant”
t0“maize”
e1“water spray (control)”
Claim · model-written summary
Ascorbic acid produced the maximum maize leaf area.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maximum leaf area, 1000-grain weight, grain and biological yield as well as grain protein and starch contents were recoded where ascorbic acid was applied”
t0“maize”
Claim · model-written summary
Ascorbic acid produced the maximum maize 1000-grain weight, grain yield and biological yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maximum leaf area, 1000-grain weight, grain and biological yield as well as grain protein and starch contents were recoded where ascorbic acid was applied”
t0“maize”
Claim · model-written summary
Ascorbic acid produced the maximum maize grain protein and starch content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“maximum leaf area, 1000-grain weight, grain and biological yield as well as grain protein and starch contents were recoded where ascorbic acid was applied”
t0“maize”
Claim · model-written summary
Humic acid produced the highest maize plant height.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“plant height and total phenolic content were highest in plants treated with humic acid”
t0“maize”
Claim · model-written summary
Humic acid produced the highest total phenolic content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“plant height and total phenolic content were highest in plants treated with humic acid”
t0“maize”
Claim · model-written summary
The authors suggest the tested growth-promoting substances may improve maize growth and yield.
- Outcome
- may be applied to improve growth and yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“they improved the plant performance and may be applied to improve growth and yield of maize”
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See all 9 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.