Paper · 1990 · New Zealand Journal of Botany

A germination inhibitor in the seeds of mahoe ( Melicytus ramiflorus )

T. R. Partridge; M. D. Wilson

5
claims
6
verbatim quotes
17
citations
1
research areas
✓
Open access

Abstract

Abstract Seeds of mahoe exude a brown watersoluble substance over a number of days. The properties of this exudate were examined. Mahoe seed did not germinate until all exudate was removed. Extracts of exudate inhibited germination of leached mahoe seed and five of six other species tested. Replacement of the exudate with fresh water restored germination in mahoe and in all but one test species. It is concluded that the exudate acts mainly as an autoinhibitor and has little allelopathic role. It confers an advantage on mahoe seedling establishment by allowing germination only after long periods of rain.

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Claims 5

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Mahoe seed did not germinate until all exudate was removed

Treatment
all exudate was removede1
Outcome
germinatee1

Not reportedComparatorDirection

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

Talipariti tiliaceum
Talipariti tiliaceum · TaxonVincenzo defifoot · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Mahoe seed did not germinate until all exudate was removed”

✓ located verbatim in the source · abstract, characters 130–188 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Extracts of exudate inhibited germination of leached mahoe seed and of five of six other species

Treatment
Extracts of exudatee2
Outcome
germination of leached mahoe seede2
Direction
inhibitede2
Qualifier
five of six other species testede2

Not reportedComparator

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

Talipariti tiliaceum
Talipariti tiliaceum · TaxonVincenzo defifoot · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“Extracts of exudate inhibited germination of leached mahoe seed and five of six other species tested”

✓ located verbatim in the source · abstract, characters 190–290 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Replacing the exudate with fresh water restored germination in mahoe and in all but one test species

Treatment
Replacement of the exudate with fresh watere3
Outcome
germinatione3
Direction
restorede3
Qualifier
in all but one test speciese3

Not reportedComparator

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

Talipariti tiliaceum
Talipariti tiliaceum · TaxonVincenzo defifoot · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e3

“Replacement of the exudate with fresh water restored germination in mahoe and in all but one test species”

✓ located verbatim in the source · abstract, characters 292–397 · show in text ↑
Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The exudate acts mainly as an autoinhibitor of mahoe germination with little allelopathic role

Outcome
germinatione5
Qualifier
acts mainly as an autoinhibitor and has little allelopathic rolee4

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

Talipariti tiliaceum
Talipariti tiliaceum · TaxonVincenzo defifoot · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e4

“It is concluded that the exudate acts mainly as an autoinhibitor and has little allelopathic role”

✓ located verbatim in the source · abstract, characters 399–496 · show in text ↑
e5

“It confers an advantage on mahoe seedling establishment by allowing germination only after long periods of rain”

✓ located verbatim in the source · abstract, characters 498–609 · show in text ↑
Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Germination only after long rain periods gives mahoe seedlings an establishment advantage

Outcome
seedling establishmente5
Qualifier
by allowing germination only after long periods of raine5

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

Talipariti tiliaceum
Talipariti tiliaceum · TaxonVincenzo defifoot · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e5

“It confers an advantage on mahoe seedling establishment by allowing germination only after long periods of rain”

✓ located verbatim in the source · abstract, characters 498–609 · show in text ↑