Abstract
Background and Objective: Elicitors could be used not only to increase isoflavone concentration of soybean seeds but also to influence the physiological characteristics of soybean. The objective of this research was to determine the effects of foliar applications of elicitor compounds (i.e., chitosan and salicylic acid) on the physiological characteristics of two soybean varieties. Materials and Methods: The research used a randomized block design with 2 factors and 3 replications. The first factor was soybean cultivar (Wilis and Devon). The second factor was foliar application consisting of without elicitor, chitosan at the four fully developed trifoliate leaves (V4), chitosan at the early podding (R3), chitosan at the V4 and R3, salicylic acid at the V4, salicylic acid at the R3 and salicylic acid at the V4 and R3. The parameters observed were chlorophyll a, chlorophyll b, total chlorophyll content and stomatal density. The data were analyzed by using analysis of variance (ANOVA) at p = 0.05. Results: The results suggest that the Devon cultivar had higher content of chlorophyll a and total chlorophyll, while Wilis cultivar had higher content of chlorophyll b and stomatal density. The foliar application with salicylic acid at the V4 resulted in the highest chlorophyll a and total chlorophyll content, while the chitosan application at the V4 and R3 resulted in the highest chlorophyll b content. The application of salicylic acid at the V4 at Wilis cultivar increased stomatal density, while the chitosan application at the V4 at Devon cultivar increased the stomatal density. Conclusion: It is concluded that in Wilis cultivar, the foliar application of salicylic acid at the V4 increased the chlorophyll a content, total chlorophyll content and stomatal density, while in the Devon cultivar, the foliar application of salicylic acid at the R3 resulted in the highest chlorophyll b content, while the application of chitosan at the V4 in Devon cultivar increased the stomatal density.
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Claims 8
Claim · model-written summary
Devon had higher chlorophyll a and total chlorophyll than Wilis.
- Taxon
- Soybean
Glycine maxt0 - Material
- Devon cultivare0
- Outcome
- content of chlorophyll a and total chlorophylle0
- Direction
- highere0
- Comparator
- Wilis cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Devon cultivar had higher content of chlorophyll a and total chlorophyll, while Wilis cultivar had higher content of chlorophyll b and stomatal density”
t0“Soybean”
Claim · model-written summary
Wilis had higher chlorophyll b content and stomatal density than Devon.
- Taxon
- SoybeanGlycine maxt0
- Material
- Wilis cultivare0
- Outcome
- content of chlorophyll b and stomatal densitye0
- Direction
- highere0
- Comparator
- Devon cultivare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Devon cultivar had higher content of chlorophyll a and total chlorophyll, while Wilis cultivar had higher content of chlorophyll b and stomatal density”
t0“Soybean”
Claim · model-written summary
Salicylic acid at V4 gave the highest chlorophyll a and total chlorophyll.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- foliar application with salicylic acid at the V4e0
- Outcome
- chlorophyll a and total chlorophyll contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application with salicylic acid at the V4 resulted in the highest chlorophyll a and total chlorophyll content”
t0“Soybean”
Claim · model-written summary
Chitosan at V4 and R3 gave the highest chlorophyll b content.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- chitosan application at the V4 and R3e0
- Outcome
- chlorophyll b contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan application at the V4 and R3 resulted in the highest chlorophyll b content”
t0“Soybean”
Claim · model-written summary
Salicylic acid at V4 increased stomatal density in Wilis.
- Taxon
- SoybeanGlycine maxt0
- Material
- Wilis cultivare0
- Treatment
- application of salicylic acid at the V4e0
- Outcome
- stomatal densitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of salicylic acid at the V4 at Wilis cultivar increased stomatal density”
t0“Soybean”
Claim · model-written summary
Chitosan at V4 increased stomatal density in Devon.
- Taxon
- SoybeanGlycine maxt0
- Material
- Devon cultivare0
- Treatment
- chitosan application at the V4e0
- Outcome
- stomatal densitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitosan application at the V4 at Devon cultivar increased the stomatal density”
t0“Soybean”
Claim · model-written summary
In Wilis, salicylic acid at V4 increased chlorophyll a and total chlorophyll.
- Taxon
- SoybeanGlycine maxt0
- Material
- Wilis cultivare0
- Treatment
- foliar application of salicylic acid at the V4e0
- Outcome
- chlorophyll a content, total chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in Wilis cultivar, the foliar application of salicylic acid at the V4 increased the chlorophyll a content, total chlorophyll content and stomatal density”
t0“Soybean”
Claim · model-written summary
In Devon, salicylic acid at R3 gave the highest chlorophyll b content.
- Taxon
- SoybeanGlycine maxt0
- Material
- Devon cultivare0
- Treatment
- foliar application of salicylic acid at the R3e0
- Outcome
- chlorophyll b contente0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the Devon cultivar, the foliar application of salicylic acid at the R3 resulted in the highest chlorophyll b content”
t0“Soybean”
The same questions in other papers
chitosan · physiology: pigments · Glycine max (soybean)Results agree
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- positive
- positive
salicylic acid · physiology: pigments · Glycine max (soybean)Results agree
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25 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
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See all 30 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.