Paper · 2022 · Journal of Experimental Biology and Agricultural Sciences

Elucidation of the morpho-physiological traits of maize (Zea mays L.) under salt stress

Rotondwa Rabelani Sinthumule; Oziniel Ruzvidzo; Tshegofatso Bridget Dikobe

4
claims
8
verbatim quotes
6
citations
1
research areas
✓
Open access · cc-by-nc

Abstract

Agriculture is an essential sector for the increasing world population, hence the need for more food production. However, the aim of increasing food crop production is mostly suppressed by abiotic stresses such as drought and salinity. Salinity is a major limiting factor that inhibits the potential of plant growth and productivity worldwide. Hence, understanding the mechanisms behind plant stress response is important for developing new biomarker approaches that will increase salt tolerance in crops. To survive, plants exhibit various morphological, physiological, and biochemical processes when faced with saline conditions. This study was carried out to explore and evaluate the morphological and physiological effects of salinity on maize grown in the absence/presence of NaCl, followed by measurement of the various growth parameters at the end of a treatment cycle. Results of the study revealed that salt stress significantly decreased growth parameters such as plant height, leaf number, leaf width, leaf area, leaf length, and shoot (weight and length). On the other hand, salinity decreased physiological traits such as stomatal count, stomatal density, transpiration, and respiration rates. This study has shown the negative effects of salt stress on the morphology and physiology of maize. These findings can be used as a reference tool in stress response studies focusing on salt stress pathways in maize and other related crops.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly reduced maize plant height, leaf number and leaf width.

Taxon
maizeZea mayse1
Treatment
salt stresse0
Outcome
plant height, leaf number, leaf widthe0
Direction
decreasede0
Comparator
absencee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“salt stress significantly decreased growth parameters such as plant height, leaf number, leaf width, leaf area, leaf length, and shoot (weight and length)”

✓ located verbatim in the source · abstract, characters 912–1066 · show in text ↑
e1

“salinity on maize grown in the absence/presence of NaCl”

✓ located verbatim in the source · abstract, characters 730–785 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salt stress significantly reduced maize leaf area, leaf length, and shoot weight and length.

Taxon
maizeZea mayse1
Treatment
salt stresse0
Outcome
leaf area, leaf length, and shoot (weight and length)e0
Direction
decreasede0
Comparator
absencee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“salt stress significantly decreased growth parameters such as plant height, leaf number, leaf width, leaf area, leaf length, and shoot (weight and length)”

✓ located verbatim in the source · abstract, characters 912–1066 · show in text ↑
e1

“salinity on maize grown in the absence/presence of NaCl”

✓ located verbatim in the source · abstract, characters 730–785 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced maize stomatal count and density.

Taxon
maizeZea mayse1
Treatment
salinitye0
Outcome
stomatal count, stomatal densitye0
Direction
decreasede0
Comparator
absencee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“salinity decreased physiological traits such as stomatal count, stomatal density, transpiration, and respiration rates”

✓ located verbatim in the source · abstract, characters 1087–1205 · show in text ↑
e1

“salinity on maize grown in the absence/presence of NaCl”

✓ located verbatim in the source · abstract, characters 730–785 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity reduced maize transpiration and respiration rates.

Taxon
maizeZea mayse1
Treatment
salinitye0
Outcome
transpiration, and respiration ratese0
Direction
decreasede0
Comparator
absencee1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“salinity decreased physiological traits such as stomatal count, stomatal density, transpiration, and respiration rates”

✓ located verbatim in the source · abstract, characters 1087–1205 · show in text ↑
e1

“salinity on maize grown in the absence/presence of NaCl”

✓ located verbatim in the source · abstract, characters 730–785 · show in text ↑

salinity · physiology: gas exchange · Zea mays (maize)Positive and negative results

16 papers: 2 positive, 14 negative or no effect

13 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

salinity · growth · Zea mays (maize)Positive and negative results

257 papers: 26 positive, 231 negative or no effect

230 papers in the same direction as this paper · 26 in the opposite direction

  1. positive
  2. negative
  3. negative

253 papers more in this group

See all 257 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.