Paper · 2002 · Agricultural and Forest Entomology

Calcium silicate enhances resistance of sugarcane to the African stalk borer Eldana saccharina Walker (Lepidoptera: Pyralidae)

M. G. Keeping; J. H. Meyer

9
claims
18
verbatim quotes
99
citations
3
research areas
✓
Open access

Abstract

Abstract The stalk borer Eldana saccharina is the most destructive pest in sugarcane in South Africa. This study investigated: (1) the potential of applied silicon in enhancing plant resistance of sugarcane to E. saccharina , using calcium silicate as a carrier; (2) whether there was any interaction between cane variety (and stalk borer resistance) and silicon treatment. Six commercial varieties of sugarcane were treated in a pot‐plant trial with two levels (5000 and 10 000 kg/ha) of calcium silicate. After artificial infestation with E. saccharina , response to the treatments was assessed in terms of borer numbers and mass, and stalk damage. Calcium silicate significantly enhanced resistance at the higher rate compared with the control. Borer mass was reduced by 19.8% and stalk length bored by 24.4%. Lower treatment values were intermediate between those of the higher treatment and the control. The interaction between variety and Si treatment was not significant when varieties were examined individually in the analysis. However, the interaction was significant for borer mass when varieties were grouped according to their resistance characteristics. Susceptible varieties might benefit more from treatment with silicon than resistant ones, as resistant varieties showed no significant effect of silicon. All varieties had increased silicon content due to the treatments, but differed appreciably in stalk silicon content at the different treatment levels. Similarly, within varieties, stalk silicon content did not correspond consistently with borer response patterns and silicate application rates.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

High rate calcium silicate reduced Borer mass by 19.8% against control.

Taxon
sugarcanet0
Treatment
Calcium silicatee0
Outcome
Borer masse0
Direction
reducede0
Value
19.8%e0
Comparator
controle0

Not reportedInteractor

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“Calcium silicate significantly enhanced resistance at the higher rate compared with the control. Borer mass was reduced by 19.8% and stalk length bored by 24.4%.”

✓ located verbatim in the source · abstract, characters 651–812 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

High rate calcium silicate reduced stalk length bored by 24.4% against control.

Taxon
sugarcanet0
Treatment
Calcium silicatee0
Outcome
stalk length borede0
Direction
reducede0
Value
24.4%e0
Comparator
controle0

Not reportedInteractor

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“Calcium silicate significantly enhanced resistance at the higher rate compared with the control. Borer mass was reduced by 19.8% and stalk length bored by 24.4%.”

✓ located verbatim in the source · abstract, characters 651–812 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Lower calcium silicate treatment gave intermediate responses.

Taxon
sugarcanet0
Treatment
Lower treatmente0
Outcome
treatment valuese0
Direction
intermediatee0
Comparator
controle0

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“Lower treatment values were intermediate between those of the higher treatment and the control.”

✓ located verbatim in the source · abstract, characters 813–908 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Variety by silicon treatment interaction was not significant for individually analyzed varieties.

Taxon
sugarcanet0
Treatment
Si treatmente0
Outcome
interaction between variety and Si treatmente0

Not reportedDirection

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“The interaction between variety and Si treatment was not significant when varieties were examined individually in the analysis.”

✓ located verbatim in the source · abstract, characters 909–1036 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Variety by silicon treatment interaction for borer mass was significant when varieties were grouped by resistance.

Taxon
sugarcanet0
Material
varietiese0
Outcome
borer masse0

Not reportedDirection

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“the interaction was significant for borer mass when varieties were grouped according to their resistance characteristics.”

✓ located verbatim in the source · abstract, characters 1046–1167 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Resistant varieties showed no significant silicon effect.

Taxon
sugarcanet0
Material
resistant varietiese0
Treatment
silicone0
Outcome
effect of silicone0
Direction
no significant effecte0

Not reportedComparator

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“resistant varieties showed no significant effect of silicon.”

✓ located verbatim in the source · abstract, characters 1261–1321 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Silicon treatment increased silicon content in all varieties.

Taxon
sugarcanet0
Treatment
treatmentse0
Outcome
silicon contente0
Direction
increasede0

Not reportedComparator

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“All varieties had increased silicon content due to the treatments”

✓ located verbatim in the source · abstract, characters 1322–1387 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Varieties differed in stalk silicon content at treatment levels.

Taxon
sugarcanet0
Outcome
stalk silicon contente0

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“differed appreciably in stalk silicon content at the different treatment levels.”

✓ located verbatim in the source · abstract, characters 1393–1473 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Stalk silicon content did not consistently correspond to borer response or application rate within varieties.

Taxon
sugarcanet0
Treatment
silicate application ratese0
Outcome
stalk silicon contente0

Not reportedDirection

Verbatim

t0

“sugarcane”

✓ located verbatim in the source · title, characters 40–49 · show in text ↑
e0

“within varieties, stalk silicon content did not correspond consistently with borer response patterns and silicate application rates.”

✓ located verbatim in the source · abstract, characters 1485–1617 · show in text ↑

silicon atom · nutrient: content · Saccharum officinarum (sugarcane)Positive and negative results

19 papers: 17 positive, 2 negative or no effect

1 paper in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. positive
  3. positive

15 papers more in this group

See all 19 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.